Consulta: subjectFacets:"Physical properties"
Registros recuperados: 65
Data/hora: 08/06/2024 09:43:54

Producción de tomate (Solanum lycopersicum L.) en diferentes granulometrías de "tezontle".
Provedor de dados: 32
Autores: San Martín Hernández, César.
En el mundo moderno, la producción de alimentos demanda tecnologías más eficientes y en armonía con el ambiente. Esta investigación se efectuó con el propósito de evaluar la producción de tomate  en condiciones protegidas e hidroponía, caracterizando previamente las propiedades físicas del sustrato, el cual consistió en mezclar cuatro tamaños de partícula de escoria volcánica roja “tezontle” (Tez) de 3-5, 5-10, 10-20 y 20-30 mm de diámetro con polvo y fibra de coco (PFC) en la proporciones 1:0, 3:1 y 1:1 (Tez:PFC). En contenedores con 24 L de sustrato, se trasplantaron tres plántulas de tomate. Las plantas se regaron con la solución Steiner aplicando solo la fracción de humedad del rango “agua fácilmente disponible”. Mensualmente se monitoreó la...
Palavras-chave: Escoria volcánica roja; Tamaño de partícula; Propiedades físicas; Polvo y fibra de coco; Hidroponía; Red volcanic scoria; Particle size; Physical properties; Dust and fiber coconut; Hydroponics; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/407

Producción de tomate (Solanum lycopersicum L.) en diferentes granulometrías de "tezontle".
Provedor de dados: 32
Autores: San Martín Hernández, César.
En el mundo moderno, la producción de alimentos demanda tecnologías más eficientes y en armonía con el ambiente. Esta investigación se efectuó con el propósito de evaluar la producción de tomate  en condiciones protegidas e hidroponía, caracterizando previamente las propiedades físicas del sustrato, el cual consistió en mezclar cuatro tamaños de partícula de escoria volcánica roja “tezontle” (Tez) de 3-5, 5-10, 10-20 y 20-30 mm de diámetro con polvo y fibra de coco (PFC) en la proporciones 1:0, 3:1 y 1:1 (Tez:PFC). En contenedores con 24 L de sustrato, se trasplantaron tres plántulas de tomate. Las plantas se regaron con la solución Steiner aplicando solo la fracción de humedad del rango “agua fácilmente disponible”. Mensualmente se monitoreó la...
Palavras-chave: Escoria volcánica roja; Tamaño de partícula; Propiedades físicas; Polvo y fibra de coco; Hidroponía; Red volcanic scoria; Particle size; Physical properties; Dust and fiber coconut; Hydroponics; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/407

Physical properties of Brazil nuts
Provedor de dados: 70
Autores: Nogueira,Roberta M.; Álvares,Virgínia de S.; Ruffato,Solenir; Lopes,Roberto P.; Silva,Juarez de S. E.
The Brazil-nut, also known as Para-nut, is widely used as food and in cosmetic industries. The seeds are rich in lipids and protein, and also present a considerable amount of selenium. Limited research has been conducted on postharvest of the Brazil nut, being an important information to design equipment related to aeration, drying, storage and transportation steps. Thus, the objective of this study was to determine the physical properties of the Brazil-nut with and without tegument. The dimensions found for the almonds with tegument were 39.35 mm in the X axis, 24.19 mm in the Y axis, and 17.88 mm in the Z axis. However for the almond without tegument the values were 31.05 mm in X, 14.38 in Y and 15.91 mm in Z axis. The sphericity was 66.40% and 51.59%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil nut; Physical properties; Postharvest.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000500015

PHYSICAL AND MECHANICAL PROPERTIES OF THE BAMBUSA VULGARIS AS CONSTRUCTION MATERIAL
Provedor de dados: 70
Autores: Gomes Neto,José A.; Barbosa,Normando P.; Beraldo,Antônio L.; Melo,Aluísio B. de.
ABSTRACT The fabrication of traditional construction materials consumes a large amount of energy, emits pollutants, and utilizes nonrenewable raw materials. Therefore, it is important to reduce the environmental impact of construction through the use of eco-friendly materials, such as bamboo. This work presents the characterization of Bambusa vulgaris, which is widely available in Brazil. The aim is to employ this raw material as a construction material. The geometric and physical properties were obtained. The results showed that, when bamboo is soaked in water, dimensional variations up to 7% were observed along the radial direction. The mechanical properties depend on the moisture content. The compressive strength can exceed 60 MPa with approximately 7%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bamboo; Mechanical properties; Physical properties; Sustainable construction.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000200119

CHANGES IN PHYSICAL QUALITY OF OXISOLS UNDER DIFFERENT MANAGEMENT SYSTEMS IN THE BRAZILIAN CERRADO
Provedor de dados: 70
Autores: Feitosa,Carlos E. L.; Costa,Pedro H. dos S.; Meneses,Kamila C. de; Oliveira,Ulisses C. de; Farias,Maryzélia F. de.
ABSTRACT Soil compaction in agricultural areas has greatly increased in recent decades due to intensive farming practices, including short-cycle crops and machinery intensification. This study aimed to evaluate the impacts of management systems on the physical quality of a dystrophic Yellow Oxisol, in the Cerrado region of Brazil. Treatments consisted of five soil management systems, with five replications (native forest [control], slash-and-burn agriculture, pasture, no-tillage, and conventional tillage). Data analysis was performed using a completely randomized experimental design. All systems were analyzed for soil density, macroporosity, microporosity, total porosity, hydraulic conductivity, infiltration, water retention curve, penetration resistance,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: S index; Land cover change; Physical properties; Infiltration; Soil compaction.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162020000500609

Calibração da técnica de Time Domain Reflectometry (TRD) para avaliação da umidade do solo, em um Latossolo Amarelo, textura muito argilosa, com diferentes valores de densidade aparente do solo - avaliação no campo.
Provedor de dados: 14
Autores: TEIXEIRA, W. G.; FACCIN, O. P.; AZEVEDO, C. P. de; HUWE, B.; SCHROTH, G.
Avaliação de umidade volumetrica do solo pela técnica de time Domain Reflectometry (TDR) para Latossolo Amarelo (Xanthic ferralsol - FAO) textura muito argilosa, com diferentes valores de p. Foram determinados os coeficientes de determinacao ajustada (R2) e o erro padrao da media. Realizou-se um ajuste por regressao multipla para P e E, selecionando-se as variaveis que contribuiam significativamente para o modelo por procedimentos de selecao stepwise. Como a variacao dos valores de p esta diretamente relacionada ao uso do solo (especie presente e o manejo praticado), foram observadas importantes diferencas entre as P das areas cultivadas e as da floresta primaria. Os valores reduzidos de P proxima as plantas de pupunha (Bactris gasipaes H.B.K.) em relacao...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Propriedade fisica; Fluxo; Brasil; Amazonas; Tropical rain forest; Moisture; Fluxes; Água; Bactris Gasipaes; Cupuaçu; Floresta Tropical Úmida; Kudzu; Pueraria Phaseoloides; Pupunha; Solo; Theobroma Grandiflorum; Umidade; Uso da Terra; Density; Land use; Physical properties; Soil; Water.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667398

Physical properties of hydrate-bearing sediments
Provedor de dados: 5
Autores: Waite, W. F.; Santamarina, J. C.; Cortes, D. D.; Dugan, B.; Espinoza, D. N.; Germaine, J.; Jang, J.; Jung, J. W.; Kneafsey, T. J.; Shin, H.; Soga, K.; Winters, W. J.; Yun, T-s.
Methane gas hydrates, crystalline inclusion compounds formed from methane and water, are found in marine continental margin and permafrost sediments worldwide. This article reviews the current understanding of phenomena involved in gas hydrate formation and the physical properties of hydrate-bearing sediments. Formation phenomena include pore-scale habit, solubility, spatial variability, and host sediment aggregate properties. Physical properties include thermal properties, permeability, electrical conductivity and permittivity, small-strain elastic P and S wave velocities, shear strength, and volume changes resulting from hydrate dissociation. The magnitudes and interdependencies of these properties are critically important for predicting and quantifying...
Tipo: Text
Palavras-chave: Physical properties; Hydrate-bearing sediment; Gas hydrate.
Ano: 2009
URL: https://archimer.ifremer.fr/doc/00219/33030/31519.pdf

Comparison of the physical and geotechnical properties of gas-hydrate-bearing sediments from offshore India and other gas-hydrate-reservoir systems
Provedor de dados: 5
Autores: Winters, W. J.; Wilcox-cline, R. W.; Long, P.; Dewri, S. K.; Kumar, P.; Stern, L.; Kerr, L.
The sediment characteristics of hydrate-bearing reservoirs profoundly affect the formation, distribution, and morphology of gas hydrate. The presence and type of gas, porewater chemistry, fluid migration, and subbottom temperature may govern the hydrate formation process, but it is the host sediment that commonly dictates final hydrate habit, and whether hydrate may be economically developed. In this paper, the physical properties of hydrate-bearing regions offshore eastern India (Krishna-Godavari and Mahanadi Basins) and the Andaman Islands, determined from Expedition NGHP-01 cores, are compared to each other, well logs, and published results of other hydrate reservoirs. Properties from the hydrate-free Kerala-Konkan basin off the west coast of India are...
Tipo: Text
Palavras-chave: Physical properties; Gas hydrate; Porosity; Atterberg limits; Consolidation; Permeability; Shear strength; Scanning electron microscopy.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00289/40036/38799.pdf

STRUCTURAL REMEDIATION OF AN ALFISOL BY MEANS OF SEWAGE SLUDGE AMENDMENTS IN ASSOCIATION WITH YELLOW SERRADELA (Ornithopus compressus L.)
Provedor de dados: 126
Autores: Sandoval,M.A; Celis,J.E; Morales,P.
Wastewater treatment generates large amounts of sewage sludge, which when are disposed in highly degraded soils (with a complete loss of the A horizon and a great part of the B horizon), represent an interesting alternative to recover the aggregate level into soil. Within the hierarchy of soil systems, the aggregate level is the one that integrates soil properties that are directly related to soil sustainability. The aim of this study was to determine the effect of different dose of sewage sludge and an annual legume on the structural recovery of a degraded Alfisol. Sludge was added to soil at 0, 15, 30 and 60 t ha-1 in treatments with and without yellow serradela (Ornithopus compressus L.). After 6 months, the following structural indicators were...
Tipo: Journal article
Palavras-chave: Biosolids; Degraded soils; Soil remediation; Physical properties.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162011000100006

Physical properties of yellow alkaline noodles from near-isogenic wheat lines with different Wx protein deficiency
Provedor de dados: 19
Autores: Tanaka, Yuko; Miura, Hideho; Fukushima, Michihiro; Ito, Miwako; Nishio, Zenta; Kim, Sun-Ju; Hashimoto, Naoto; Noda, Takahiro; Takigawa, Shigenobu; Matsuura-Endo, Chie; Yamauchi, Hiroaki; 三浦, 秀穂; 福島, 道広.
This paper reports the results of a study of the relationship among the amylose content of flours and the physical properties, such as the texture, of yellow alkaline noodles (YAN) prepared from these flours. For this purpose, we used eight types of near-isogenic flours with different Wx protein deficiency under the Chinese Spring genetic background. With the use of the near-isogenic lines, it was possible to achieve similar flour characteristics, with the exception of the amylose content of starch in YAN, and to analyze clearly the effects of the amylose content on the physical properties of YAN. The results of this study indicated that the breaking force and breaking force/breaking deformation of YAN made from the eight lines basically decreased and that...
Palavras-chave: Yellow alkaline noodles; Physical properties; Amylose content; Sensory evaluation.
Ano: 2006
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/715

Condiciones físico químicas en el entorno de la Isla de La Plata (Agosto/2001)
Provedor de dados: 20
Autores: Burgos, L.; Gamboa, M.C.
Con el objeto de estudiar las funciones de esforzamiento y mecanismos que regulan la surgencia, a fin de desarrollar la capacidad de predicción de sus efectos sobre las pesquerías de la zona.
Tipo: Journal Contribution
Palavras-chave: Upwelling; Nutrients (mineral); Cruises; Chemical properties; Physical properties; Water properties; Fishery resources; Chemical properties; Physical properties; Fishery resources; Http://aims.fao.org/aos/agrovoc/c_9754; Http://aims.fao.org/aos/agrovoc/c_13328; Http://aims.fao.org/aos/agrovoc/c_2942.
Ano: 2002
URL: http://hdl.handle.net/1834/2273

Cambios en la composición de pequeños pescados pelágicos salados en salmuera durante su producción y almacenamiento
Provedor de dados: 20
Autores: Bostock, T.; Camba, N.
Los cambios físicos, químicos y organolépticos en macarela (Scomber japonicus) y sardina (Sardinops sagax, Etrumeus teres) saladas durante el procesamiento y subsecuente almacenamiento en salmuera son descritos. Es evaluada además la calidad del producto desde el punto de vista microbiológico, así como también los efectos que se observan en el producto final cuando el artesano ecuatoriano usa materia prima de baja calidad. Los principales cambios que ocurren (enrojecimiento de la carne, desarrollo de olores a frutas, el aumento de las bases volátiles totales y de proteínas solubles y posiblemente histamina parecen estar relacionadas más con la autólisis que con el desarrollo microbiológico). La maduración o ”deterioración” (en términos del paladar...
Tipo: Journal Contribution
Palavras-chave: Processing fishery products; Storage effects; Chemical composition; Physical properties; Organoleptic properties; Microbiological analysis; Cured products; Chemical composition; Physical properties; Organoleptic properties; Microbiological analysis; Http://aims.fao.org/aos/agrovoc/c_1794; Http://aims.fao.org/aos/agrovoc/c_13328; Http://aims.fao.org/aos/agrovoc/c_5399; Http://aims.fao.org/aos/agrovoc/c_25302.
Ano: 1986
URL: http://hdl.handle.net/1834/3153

Estudio comparativo de la calidad del agua en el área marino costera de Bahía Academia, Caleta Aeolian y Puerto Villamil - Islas Galápagos -  junio-julio 2007
Provedor de dados: 20
Autores: Palacios, C.; Burgos, L.
Se analiza los datos tomados en el área marino costera de tres importantes islas de Galápagos como son: Bahía Academia-Santa Cruz, Caleta Aeolian-Baltra y Puerto Villamil-Isabela, durante los meses de junio y julio del 2007, considerando la distribución superficial de los parámetros físicos, químicos en cada una de las áreas. Se efectúa el análisis comparativo de las concentraciones promedios y la calidad microbiológica con los límites permisibles establecidos en la Legislación Secundaria Ambiental, concluyendo en general, que la calidad del agua está acorde con la vida marina, pero que a pesar de no presentar mayores problemas de contaminación, existen área muy puntuales que ameritan mayor cuidado y seguimiento para preservar y conservar estas islas que...
Tipo: Journal Contribution
Palavras-chave: Water quality; Microbiological analysis; Physical properties; Data processing; Water quality; Microbiological analysis; Physical properties; Data processing; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_25302; Http://aims.fao.org/aos/agrovoc/c_13328; Http://aims.fao.org/aos/agrovoc/c_10289.
Ano: 2009
URL: http://hdl.handle.net/1834/3369

Essai d'évaluation de la qualité des eaux de ruissellement du bassin versant de la lagune de Bizerte
Provedor de dados: 20
Autores: Hammami, J.; Brahim, M.; Gueddari, M.
:تقع بحيرة بنزرت في الشمال التونسي وتغذيها عدة أودية تنبع من حوض يمتد على مساحة شاسعة. وتمثل التقلبات المناخية والأنشطة الإقتصادية المتزايدة في السنوات الأخيرة أهم العوامل المؤثرة في هذا الحوض وفي السيول التي تنبع منه في اتجاه البحيرة.  لقد قمنا في شهر فيفري في سنة 2003 باقتـاء عينات من الماء مـن 15 مصـب لتحليلـها ( درجة الحرارة، درجة الحموضة، نسبة الأكسجين، الكلوروفيل والمواد العضوية والمعدنية الأزوتية والفسفورية) قصد دراسة هذه الظاهرة.  وبينت النتائج التي تم الحصول عليها بأن مياه روافد بحيرة بنزرت تتميز عموما بنسبة عالية للأكسجين وبدرجة حموضة عادية إلى مرتفعة نوعا ما. لكن مياه مصب وادي المرازيق وقنيش والذين يقعان بالتوالي في الشمال الغربي والجنوب الشرقي للبحيرة محملا بأكثر نسبة من المواد الأزوتية والفسفورية. تظهر هذه النتيجة واضحة في التحاليل الإحصائية...
Tipo: Journal Contribution
Palavras-chave: Runoff; Anthropogenic factors; Chlorophylls; Physical properties; Water quality; Chemical properties; Nitrogen; Phosphorus; Runoff; Water quality; Chemical properties; Nitrogen; Phosphorus; Anthropogenic factors; Chlorophylls; Physical properties; Http://aims.fao.org/aos/agrovoc/c_35388; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_9754; Http://aims.fao.org/aos/agrovoc/c_5192; Http://aims.fao.org/aos/agrovoc/c_5804; Http://aims.fao.org/aos/agrovoc/c_34996; Http://aims.fao.org/aos/agrovoc/c_1577; Http://aims.fao.org/aos/agrovoc/c_13328.
Ano: 2005
URL: http://hdl.handle.net/1834/1533

Essai d’évaluation de la qualite des eaux de ruissellement du bassin versant de la lagune de Bizerte
Provedor de dados: 20
Autores: Hammami, J.; Brahim, M.; Gueddari, M.
La lagune de Bizerte, située en Tunisie nord-orientale, constitue un bassin récepteur d’un réseau hydrographique bien développé. Afin d’apprécier l’impact des facteurs naturels et anthropiques sur les eaux de ruissellement du bassin versant de cette lagune, une campagne de prélèvement d’eau a été effectuée en février 2003 (période de crue) au niveau de la partie aval de quinze cours d’eau, à raison d’un échantillon par cours d’eau. Les échantillons d’eau prélevés ont fait l’objet de mesure in situ des variables physico-chimiques (température, pH et O2 dissous) et d’analyses au laboratoire de la chlorophylle a et des différentes formes organiques et inorganiques dissoutes de l’azote et du phosphore. Les résultats obtenus ont montré que les eaux de...
Tipo: Journal Contribution
Palavras-chave: Anthropogenic factors; Chemical properties; Chlorophylls; Nitrogen; Phosphorus; Physical properties; Pollution monitoring; Runoff; Water quality; Chemical properties; Nitrogen; Phosphorus; Runoff; Water quality; Chlorophylls; Anthropogenic factors; Physical properties; Http://aims.fao.org/aos/agrovoc/c_9754; Http://aims.fao.org/aos/agrovoc/c_5192; Http://aims.fao.org/aos/agrovoc/c_5804; Http://aims.fao.org/aos/agrovoc/c_35388; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_1577; Http://aims.fao.org/aos/agrovoc/c_34996; Http://aims.fao.org/aos/agrovoc/c_13328.
Ano: 2005
URL: http://hdl.handle.net/1834/3747

Time series of ocean measurements. Vol. 3
Provedor de dados: 20
Tipo: Book
Palavras-chave: Oceanography; Oceanography; Oceanographic data; Physical properties; Physical oceanography; Plankton surveys; Hydrographic data; Hydrographic surveys; Time series; Time series analysis; Temperature data; Physical oceanography; Time series analysis; Oceanography; Physical properties; Http://aims.fao.org/aos/agrovoc/c_5830; Http://aims.fao.org/aos/agrovoc/c_28778; Http://aims.fao.org/aos/agrovoc/c_12889; Http://aims.fao.org/aos/agrovoc/c_13328.
Ano: 1986
URL: http://hdl.handle.net/1834/2803

The Dietary Inclusion of Chickpea Seeds (Cicer Arietinum L.) Influences the Thermal Properties of Muscle Proteins, But Not the Texture of Drumstick Muscle in Broiler Chickens
Provedor de dados: 89
Autores: Muszyński,S; Tomaszewska,E; Kwiecień,M; Dobrowolski,P; Świetlicka,I; Tanaś,W; Sołowiej,B; Ejtel,M; Szcześniak,E; Tomczyk-Warunek,T.
ABSTRACT In this study, the effect of replacement of soybean meal with raw chickpea seeds as a primary protein source in the diet of broiler chicks on physical properties of drumstick muscle (m. gastrocnemius) was examined. One-day-old Ross 308 broilers (n=160) were fed soybean meal (n=80) or raw chickpea seeds (n=80) as a primary protein source for 42 days. Drumstick muscles, after dissection and storage for 24 h at 5°C, were subjected to texture profile analysis to determine changes in the structural and material integrity, and the thermal stability of muscle proteins were assessed on the basis of differential scanning calorimetry measurements. Light meromyosin, heavy meromyosin and sarcoplasmic proteins in the meat samples of broilers fed raw chickpea...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Analytical methods; Dietary protein; Muscle structure; Physical properties.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000200302

Spatial variability of aggregate stability in latosols under sugarcane
Provedor de dados: 90
Autores: Souza,Zigomar Menezes de; Marques Júnior,José; Pereira,Gener Tadeu; Sáenz,Carolina Maria Sánchez.
The spatial variability of soils under a same management system is differentiated, as expressed in the properties. The spatial variability of aggregate stability of a eutrophic Red Latosol (ERL) and a dystrophic Red Latosol (DRL) under sugarcane was characterized. Samples were collected in a regular 10 m grid, in the layers 0.0-0.2 and 0.2-0.4 m, with 100 points per area, and the following properties were determined: geometric mean diameter (GMD) of aggregates, mean weight diameter (MWD) of aggregates, percent of aggregates in the &gt; 2.0 mm class and organic matter (OM) content. The eutrophic Red Latosol (ERL) had a higher aggregate stability thn the dystrophic Red Latosol (DRL), which may be attributed to the higher clay and OM content and the gibbsitic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spatial distribution; Physical properties; Organic matter; Saccharum officinarum.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000200002

USE OF SCALED SEMIVARIOGRAMS IN THE PLANNING SAMPLE OF SOIL PHYSICAL PROPERTIES IN SOUTHERN AMAZONAS, BRAZIL
Provedor de dados: 90
Autores: Aquino,Renato Eleotério de; Campos,Milton César Costa; Marques Junior,José; Oliveira,Ivanildo Amorim de; Teixeira,Daniel De Bortoli; Cunha,José Maurício da.
There is a great lack of information from soil surveys in the southern part of the State of Amazonas, Brazil. The use of tools such as geostatistics may improve environmental planning, use and management. In this study, we aimed to use scaled semivariograms in sample design of soil physical properties of some environments in Amazonas. We selected five areas located in the south of the state of Amazonas, Brazil, with varied soil uses, such as forest, archaeological dark earth (ADE), pasture, sugarcane cropping, and agroforestry. Regular mesh grids were set up in these areas with 64 sample points spaced at 10 m from each other. At these points, we determined the particle size composition, soil resistance to penetration, moisture, soil bulk density and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sample density; Spatial variability; Physical properties; Scaled semivariograms.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100021

Modelling of soil penetration resistance for an oxisol under no-tillage
Provedor de dados: 90
Autores: Tavares Filho,João; Feltran,Clarissa Tieme Matsuda; Oliveira,José Francirlei de; Almeida,Edinei de.
Soil penetration resistance is an important property that affects root growth and elongation and water movement in the soil. Since no-till systems tend to increase organic matter in the soil, the purpose of this study was to evaluate the efficiency with which soil penetration resistance is estimated using a proposed model based on moisture content, density and organic matter content in an Oxisol containing 665, 221 and 114 g kg-1 of clay, silt and sand respectively under annual no-till cropping, located in Londrina, Paraná State, Brazil. Penetration resistance was evaluated at random locations continually from May 2008 to February 2011, using an impact penetrometer to obtain a total of 960 replications. For the measurements, soil was sampled at depths of 0...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: No-till; Compaction; Physical properties; Organic matter.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000100010

Spatial and Temporal Variability of Soil CO2 Flux in Sugarcane Green Harvest Systems
Provedor de dados: 90
Autores: Tavares,Rose Luiza Moraes; Souza,Zigomar Menezes de; Scala Jr,Newton La; Castioni,Guilherme Adalberto Ferreira; Souza,Gustavo Soares de; Torres,José Luiz Rodrigues.
ABSTRACT The sugarcane green harvest system, characterized by mechanized harvesting and the absence of crop burning, affects soil quality by increasing crop residue on the soil surface after harvest; thus, it contributes to improving the physical, chemical, and microbiological properties and influences the soil carbon content and CO2 flux (FCO2). This study aimed to evaluate the spatial and temporal variability of soil FCO2 in sugarcane green harvest systems. The experiment was conducted in two areas of sugarcane in São Paulo, Brazil: the first had a 5-year history of sugarcane green harvest (SG-5) and the second had a longer history of 10 years (SG-10). The temporal FCO2 were evaluated in the dry and rainy periods, and spatial variability in the dry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: CO2 emission; Soil respiration; Straw; Mechanized harvest; Physical properties.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100524

Preservation of roasted and ground coffee during storage. Part 2: Bulk density and intergranular porosity
Provedor de dados: 91
Autores: Corrêa,Paulo C.; Oliveira,Gabriel H. H. de; Vasconcelos,Wander L.; Vargas-Elías,Guillermo A.; Santos,Fábio L.; Nunes,Eduardo H. M.
ABSTRACT The determination of physical properties is an important factor in the design of machinery and the scaling of post-harvest operations. The present study evaluates the influence of the level of roasting and the size of grinding on the physical properties of coffee during storage. The following physical properties were evaluated: true and bulk density, and intergranular porosity. Raw coffee beans (Coffea canephora and Coffea arabica), hulled and dried, were roasted to two different levels: medium light (SCAA#65) and moderately dark (SCAA#45). The beans were then grinded into three different sizes: fine (0.59 mm), medium (0.84 mm) and coarse (1.19 mm). An additional coffee lot was kept whole. Following grinding, samples were stored at two different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coffea arábica; Coffea canéfora; Physical properties.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700666

Carbon losses and soil property changes in ferralic Nitisols from Cuba under different coverages
Provedor de dados: 63
Autores: Hernández-Jiménez,Alberto; Vargas-Blandino,Dania; Bojórquez-Serrano,José Irán; García-Paredes,Juan Diego; Madueño-Molina,Alberto; Morales-Díaz,Marisol.
ABSTRACT The transformation of primary forestlands into lands under cultivation exerts an impact on the physical and chemical properties of the soils, leading to loss of carbon from the soil. The aims of this study were (1) to estimate the impact of different land use on organic carbon stock (OC-stock) and (2) to determine the clay percentage, the dispersion factor, and bulk density with regard to soil management. Thirty soil profiles were sampled as follows: four under primary forests with 80-100 years (old growth); two under secondary wood forests with 45-50 years; eight under secondary young forests with 15-25 years; four under pasture land with 15-20 years; and 12 under continuous cultivation for &gt; 50 years. We determined the changes in OC-stock in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Degradation; Carbon reserves; Physical properties; Tropical soils.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000400311

Effects of extrusion conditions on the physical and functional properties of instant  cereal beverage powders admixed with mulberry (Morus alba L.) leaves
Provedor de dados: 106
Autores: Chulaluck Charunuch; Plernchai Tangkanakul; Nipat Limsangouan; Vayhu Sonted.
On account of studying the feasibility of the production instant cereal beverage powders admixed with mulberry leaves by extrusion process, a box-behnken design of the response surface methodology (RSM) was employed to investigate the interaction of operating conditions at varying screw speed (300, 350 and 400 rpm), mulberry content  (5, 10 and 15%) and feed moisture (15, 17 and 19%) on the physical and  antioxidant property of product. Data were modelled by multiple regression analysis and the coefficient indicating for best fit model. The results showed that the effect of mulberry content and feed moisture had significant on bulk density, color, viscosity, water absorption index, antioxidant activity and total phenolic compound. Increasing of mulberry...
Tipo: PhysicalObject
Palavras-chave: Mulberry leaves; Extrusion conditions; Instant cereal beverage powders; Functional properties; Physical properties; Antioxidant activity; Phenolic compounds; เครื่องดื่มสำเร็จรูปธัญพืช; ใบหม่อน; กระบวนการเอ็กซ์ทรูชั่น; คุณสมบัติเชิงกล; คุณสมบัติเชิงหน้าที่.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5139

Optimization of extrusion conditions for functional ready-to-eat breakfast cereal
Provedor de dados: 106
Autores: Chulaluck Charunuch; Nipat Limsangouan; Waraporn Prasert; Pisut Butsuwan.
Mixed vegetable powders – composed of purple sweet potato, red cabbage and beetroot at a 2:1:1 ratio – were incorporated with cereal base by an extrusion process to obtain a functional, ready-to-eat breakfast cereal. This study investigated the effects of mixed vegetable powder level (8, 12 and 16%), screw speed (300, 350 and 400 rpm) and feed moisture content (13, 15 and 17%) on the physical and functional properties of extrudates in breakfast cereal production using response surface methodology (RSM) and Box-Behnken experimental design. The results showed high correlation coefficients (R2 ) of multiple regression equations about the relationship among product responses and process variables, and no significant lack of fit (indicating a best-fit model)....
Tipo: PhysicalObject
Palavras-chave: Vegetable; Extrusion process; Ready to eat breakfast cereal; Purple sweet potato; Red cabbage; ฺBeetroot; Physical properties; Functional properties; อาหารเช้าธัญชาติพร้อมบริโภค; กระบวนการเอกซ์ทรูชัน; อาหารเพื่อสุขภาพ; ผัก; แป้งผัก; คุณสมบัติทางกายภาพ; คุณสมบัติเชิงหน้าที่.
Ano: 2011
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5262

สมบัติทางกายภาพและเคมีของข้าวปทุมธานี 1 และพิษณุโลก 2 ระหว่างการเก็บรักษา
Provedor de dados: 106
Autores: Kunya Cheaupun; Sunantha Wongpiyachon; Wacharee Sukwiwat; Pranee Maneenin; Janrung Maunpoo; Monticha Thung-ngern.
Paddy storage may cause considerable losses and changes in quality of rice. The objective of this study is to determine changes in some physical and chemical properties of rice grains during storage. The experiment was conducted at Pathumthani Rice Research Center during May 2012 – January 2013. PTT1 variety was used for low amylose rice, and PSL2 for high amylose. Samples were taken and stored in 2 kg woven plastic sack at room temperature. The PTT1 and PSL2 samples  were stored for 8 and 6 months, respectively. Changes in the physical and chemical properties of rice grains were observed. The paddy samples increased in percentage of head rice, yellow grains and fat acidity, while whiteness of milled rice decreased. But amylose content and percentage of...
Tipo: PhysicalObject
Palavras-chave: Rice; Rice grains; Paddy storage; Postharvest; Quality; Physical properties; Chemical properties; Pathum Thani province; ข้าวเปลือก; เมล็ดข้าว; พันธุ์ปทุมธานี 1; พันธุ์พิษณุโลก 2; การเก็บรักษา; วิทยาการหลังการเก็บเกี่ยว; คุณภาพเมล็ดข้าว; สมบัติทางกายภาพ; สมบัติทางเคมี; การเปลี่ยนสี; ความเป็นกรดของไขมัน; ปริมาณอมิโลส; จ.ปทุมธานี.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5658

การศึกษาคุณสมบัติทางกายภาพบางประการของเมล็ดข้าวงอกพันธุ์ขาวดอกมะลิ 105 และพันธุ์ กข6
Provedor de dados: 106
Autores: Narisara Donparn; Banyat Saitthiti; Raksak Sermsak.
Tipo: Collection
Palavras-chave: Gaba rice; Pre-germinated rice; Physical properties; Germinated rice; Khao Dawk Mali 105; RD6; เมล็ดข้าวงอก; ข้าวกาบา; คุณสมบัติทางกายภาพ; พันธุ์ขาวดอกมะลิ 105; พันธุ์ กข6.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5367

ปฏิกิริยาร่วมระหว่างพันธุกรรมกับสภาพแวดล้อมของพีช [Prunus persica (L.) Batsch.] และเนคทารีน [Prunus persica var. Nectarica] บนที่สูงทางภาคเหนือของประเทศไทย
Provedor de dados: 106
Autores: Suthin Promchot.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Prunus persica; Peaches; Nectarines; Nectarica; Genotype environment interaction; Physical properties; Fruit quality; Highland; Northern Thailand; พีช; เนคทารีน; พันธุ์; ปฏิกิริยาร่วมระหว่างพันธุกรรมและสภาพแวดล้อม; ลักษณะทางกายภาพของกิ่ง; ตาดอก; ตาใบ; การติดผล; คุณภาพผล.
Ano: 2002
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5485

อิทธิพลของแป้งข้าวโพดบดหยาบดัดแปรด้วยกระบวนการเอกซ์ทรูชันต่อคุณลักษณะทางกายภาพของผลิตภัณฑ์ขนมขบเคี้ยว
Provedor de dados: 106
Autores: Nipat Limsangouan; Sunaree Thamkrasae; Chulaluck Charunuch; Pisut Butsuwan; Phisamai Srichayet; Kassamaporn Puntaburt.
To solve the non-acceptance from producer and customer (dense texture and low expansion) for high fiber extruded snack production, the modified corn grit flour by extrusion process were used.  The effect of modified corn grit flour on physical properties (expansion ratio, bulk density and texture profile) of extruded snack foods was studied with two factors of modified conditions (feed moisture at 2 levels: 14 and 18%; screw speed at 2 levels: 300 and 400 rpm) and %substitute of modified corn grit flour (5 levels: 0, 25, 50, 75 and 100%).  The results found that, the higher level of %substitute of modified corn grit flour and screw speed will make a good quality in high expansion ratio (2.73 ±  0.11) and crispness (38.27 ± 8.38), but low bulk density (5.15...
Tipo: PhysicalObject
Palavras-chave: Modified corn grit flour; Extrusion process; Physical properties; Extruded snack; แป้งข้าวโพดบดหยาบดัดแปร; กระบวนการเอกซ์ทรูชัน; คุณลักษณะทางกายภาพ; ผลิตภัณฑ์ขนมขบเคี้ยว.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5249

Physical properties of direct expansion extruded snack in utilization from Thai brown rice
Provedor de dados: 106
Autores: Chulaluck Charunuch; Pracha Boonyasirikool; Chowladda Tiengpook.
Thai brown rice from two varieties (Patumthani 1 and Supanburi 1) were investigated for basic raw materials in the production of direct expansion extruded snack by twin screw extruder at varying feed moisture (13, 15 and 17%) and screw speed (250, 300 and 350 rpm) in a 3 × 3 factorial in randomized complete block design. Results indicated that main factor (feed moisture or screw speed) had significant effect on physical properties of extrudates by showing that reducing feed moisture or increasing screw speed provided more expandable extrudate with higher expansion ratio, lower bulk density, higher water solubility index and broad peak in texture measurements, which similar results in both varieties of brown rice. The appropriate brown rice extruded snack...
Tipo: PhysicalObject
Palavras-chave: Brown rice; Extruded snack; Physical properties; ข้าวกล้อง; ปทุมธานี 1; สุพรรณบุรี 1; คุณสมบัติทางกายภาพ; วัตถุดิบ; การแปรรูปข้าว; ผลิตภัณฑ์อาหารขบเคี้ยว; กระบวนการเอกซ์ทรูด; เครื่องเอกซ์ทรูเดอร์แบบสกรูคู่; การพัฒนาผลิตภัณฑ์.
Ano: 2003
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/2628

Physical properties of direct expansion extruded snack in utilization from Thai brown rice
Provedor de dados: 106
Autores: Chulaluck Charunuch; Pracha Boonyasirikool; Chowladda Tiengpook.
Thai brown rice from two varieties (Patumthani 1 and Supanburi 1) were investigated for basic raw materials in the production of direct expansion extruded snack by twin screw extruder at varying feed moisture (13, 15 and 17%) and screw speed (250, 300 and 350 rpm) in a 3 × 3 factorial in randomized complete block design. Results indicated that main factor (feed moisture or screw speed) had significant effect on physical properties of extrudates by showing that reducing feed moisture or increasing screw speed provided more expandable extrudate with higher expansion ratio, lower bulk density, higher water solubility index and broad peak in texture measurements, which similar results in both varieties of brown rice. The appropriate brown rice extruded snack...
Tipo: PhysicalObject
Palavras-chave: Extruded snack; Thai brown rice; Physical properties; Patumthani 1; Supanburi 1; ขนมขบเคี้ยว; ข้าวกล้อง; คุณสมบัติทางกายภาพ; พันธุ์ปทุมธานี 1; พันธุ์สุพรรณบุรี 1.
Ano: 2003
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5258

Maize properties for industrial uses
Provedor de dados: 106
Autores: Sukoncheun Sringam; Rasamee Supasri.
5 tables
Palavras-chave: Corn; Maize; Varieties; Physical properties; Chemical analysis; Water absorption; Kernel density; Amylose content; ข้าวโพด; คุณสมบัติทางกายภาพ; คุณสมบัติทางเคมี; อะไมโลส; ความหนาแน่นของเมล็ด; ปริมาณ; การดูดซับน้ำ.
Ano: 1983
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4155

Using of extrusion process for preparation of instant cereal beverage powders based on corn and soybean
Provedor de dados: 106
Autores: Chulaluck Charunuch; Pracha Boonyasirikool; Chowladda Teangpook.
Preparation of the instant cereal beverage powders based on corn and soybean from extrusion process has been studied. To examine the effect of particle size of corn grit (13, 23 and 33 mesh) and the composition between corn grit and isolated soy protein (84:10, 74:20 and 64:30) on the properties of product and evaluate nutritional value of acceptable product. The results were found that the differences in particle size of corn grit did not have significant effect (p&gt;0.05) on the chemical composition (moisture and protein content) and most of the physical properties of product but the differences in the composition between corn grit and isolated soy protein have significant effect (p≤0.05) on the protein content and the physical properties of product...
Tipo: PhysicalObject
Palavras-chave: Extrusion process; Instant cereal beverage powders; Corn; Soybean; Protein content; Physical properties; เครื่องดื่มสำเร็จรูปธัญพืช; ข้าวโพด; ถั่วเหลือง; กระบวนการเอ็กทรูชั่น; ปริมาณโปรตีน; คุณสมบัติเชิงกล.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5138

Contração volumétrica e forma dos frutos de mamona durante a secagem - doi: 10.4025/actasciagron.v33i1.4629
Provedor de dados: 1
Autores: Goneli, André Luís Duarte; Universidade Federal de Viçosa; Corrêa, Paulo Cesar; Universidade Federal de Viçosa; Magalhães, Felipe Elia de almeida; Universidade Federal de Viçosa; Baptestini, Fernanda Machado; Universidade Federal de Viçosa.
O objetivo do presente trabalho foi avaliar o efeito da variação do teor de água na contração volumétrica, dimensões características e forma dos frutos de mamona durante a secagem. Foram utilizados frutos colhidos com teor de água de 2,50 (b.s.), secos à temperatura de 40&amp;deg;C até o teor final de 0,11 (b.s.). O tamanho dos frutos foi determinado por meio da variação do volume e a forma foi analisada pela esfericidade e circularidade. A contração volumétrica dos frutos foi determinada pela relação entre o volume em cada teor de água e o volume inicial. Com base nos resultados, concluiu-se que a forma dos frutos de mamona é influenciada pela redução do teor de água, promovendo redução da esfericidade e circularidade. As dimensões características...
Palavras-chave: 5.03.03.00-7 Ricinus communis L.; Propriedades físicas; Contração volumétrica Engenharia de Processamento de Produtos Agrícolas Ricinus communis L.; Physical properties; Shrinkage.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/4629

Effective engineering properties in the design of storage structures of postharvest dry bean grain
Provedor de dados: 1
Autores: Kibar, Hakan; Igdir University; Öztürk, Turgut; Igdir University; Temizel, Kadir Ersin; Ondokuz Mayis University.
Selected engineering properties (physical and mechanical) of dry bean under non-irrigation and drip-irrigation were determined and compared. These properties are necessary for the design of equipments for harvesting, processing, transporting, estimating loads in storage structures for crops and flow problems in silos such as arching, ratholing, irregular flow and segregation. Some engineering characteristics such as: average length, width, thickness, the geometric mean diameter, sphericity, surface area, volume, thousand grain mass (M1000), bulk and true densities, porosity, angle of internal friction, static coefficient of friction, Poisson ratio and pressure ratio were studied. The highest average values for physical properties were recorded at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering dry bean; Physical properties; Mechanical properties; Statistical analysis.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19394

Effects of land use change on the soil physical and chemical properties and fertility of soil in Sajadrood catchment
Provedor de dados: 111
Autores: Azadeh Rostam Kiakojori; Mohammad Mehdi Taghavi Gorgi; Department of Natural Resources Rangeland and Watershed Management, Islamic Azad University of Nur, Mazandaran, Iran.
Prioritizing and expanding the agricultural activities by increasing the agricultural commodities are the strategies to create a balance between the increasing population rate and food production to meet the increasing needs of human beings.  The existence of suitable water and soil are the main factors for these activities.  In this study the influence of changing the exploitation of pasture system to farming land system on the physical and chemical properties of the soil in one selection in Sajadrood catchment in the north of Iran was investigated.  Samples were taken at two depths (0-10 cm and 10-20 cm) in four sites.  After experimentation, the gathered data were analyzed using SPSS 21.0 software program.  The results showed that the amount of soil...
Palavras-chave: Farming land; Pasture; Physical properties; Sajadrood catchment.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2934

EFFECT OF SOIL PYSICAL PROPERTIS ON PERFORMANCE OF AGRICULTURAL FIELD MACHINERIES IN THE TROPICAL REGION OF NIGERIA
Provedor de dados: 111
Autores: Oduma, Okechukwu.
Abstract: A research was conducted at the demonstration farms of Michael Okpara University of Agriculture, Umudike, Abia State and Veterinary School, Ezzangbo, Ebnonyi State in 2017; to assess the effect of soil physical properties on the performance of some selected agricultural field machineries in the tropical region of Nigeria. Results of the effect of the soil textural class/ type on implement performances revealed that the average efficiency of the implements was highest on sandy-clay soil with average efficiency of 87.35% and the least was loamy-sandy soil that gave an average efficiency of 86.21%. It was observable from the results that the highest average moisture content of 17.7% was recorded for all the \soils before tillage; but after tillage;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural and Bioresources Engineering Keywords: Field machineries; Performances; Physical properties; Soil; Tropical region.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4332

Aerodynamic and some physical properties of sunflower seeds as affected by moisture content
Provedor de dados: 111
Autores: chavoshgoli, esmaeil khalil; abdollahpour, shamsollah; abdi, reza; babaie, aziz; ,.
Abstract: The physical and aerodynamic characteristics of seeds can strongly influence their movements in the agricultural machine as well as in the air.  The knowledge of the physical characteristics of particles is essential for the constructors and operators of agricultural machines.  In this research some physical and aerodynamic properties of two Iranian edible seeds of sunflower cultivars (Badami and Doursefid) were studied in the moisture content range from 7% to 30% wet basis (w.b.).  With decrease in moisture content the true density of Badami and Doursefid decreased from 561.02 to 457.29 kg/m3 and 509.35 to 440.50 kg/m3, respectively.  For studying aerodynamic properties (terminal velocity and drag coefficient) the ratio of mass (g) to projected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sunflower seed; Physical properties; Aerodynamic properties.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2662

Moisture Dependent Physical Properties of Black gram
Provedor de dados: 111
Autores: Sharon, M Esther Magdalene; , CV Kavitha Abirami; , K Alagusundaram; , J Alice RPS.
Physical properties of Black gram are important during harvesting, cleaning and drying with machines and also during improvement of these machines. This study was conducted to evaluate some moisture-dependent physical properties of Black gram namely, grain dimensions, thousand grain mass, surface area, sphericity, bulk density, true density, porosity and angle of repose. As the moisture content increased from 8.696% to 21.951% d.b., the three axial dimensions of the Black gram increased and the arithmetic and geometric mean diameter ranged from 3.736 ± 0.14 to 4.276 ± 0.14 mm and 3.797 ± 0.13 to 4.322 ± 0.13 mm respectively. The hundred grain mass of Black gram were 42.52 ± 1.03 and 48.18 ± 0.45 kg. The sphericity values of Black gram increased from 79.69%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Post harvest Processing of grains Black gram; Physical properties; Moisture content.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2803

Moisture dependent physical and mechanical properties of Mazafati date pit
Provedor de dados: 111
Autores: saberi moghadam, Mojtaba; Hassan-Beygi, Seyed reza; Aboonajmi, Mohammad.
Knowing the physical and mechanical properties is very important for automating the activities associated with the date pit. The objective of this study was to determine physical and mechanical properties of date pit of Mazafati cultivar as a function of moisture content. The physical properties of the pits were determined in the moisture content range of 7% to 40% (wb). The date pits was compressed along the width at 0.08, 0.46, 0.55 and 0.64 (db) moisture contents to determine required force, deformation, and energy per volume (toughness) at rupture point. The results showed that the greatest length, width, thickness were 24.43, 9.21, 7.15 mm, respectively at moisture content of 40 % (wb). With increase moisture from 7% to 40% (wb) the true density of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Date; Pit; Moisture content; Mazafati cultivar; Physical properties; Mechanical properties.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3201

Moisture dependent physical properties of wild safflower (carthamus oxyacanthus) seeds
Provedor de dados: 111
Autores: khanahmadzadeh, Abdolvahed; Goli, Hadi; Ghamari, Salah.
Measuring physical properties of crops is necessary for optimal harvesting, cleaning, threshing, sorting, drying, and milling operations. Despite an extensive literature review, there is no information about the physical properties of the wild safflower seed. In this study the physical properties of the wild safflower seed have been investigated as a function of moisture content at four levels (5.4%, 9.4% (initial), 13.4%, and 17.4% d.b.). The average length (mm), width (mm), thickness (mm), arithmetic mean diameter (mm), geometric mean diameter (mm), sphericity (%), volume (cm³), seed surface area (cm²), terminal velocity (m/s), bulk density (gr/cm³), actual density (gr/cm³), and porosity (%)  at initial moisture content  were 6.418, 3.499, 3.388, 4.435,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Physical properties; Wild safflower seed; Moisture content.
Ano: 2021
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5977

Parboiling Duration Effects on Physical Properties of African Breadfruit Seed
Provedor de dados: 111
Autores: Obi, Okey Francis; Okechukwu, Michael Emeka.
Abstract Parboiling is a pre-dehulling operation and, the effect on the physical properties of African breadfruit seed (var. africana) was investigated. Freshly extracted seeds were parboiled for 0 (control), 5, 10, 15, and 20 minutes, and their physical properties determined. It was observed that parboiling time had a significant effect (p&amp;lt;0.05) on all the physical properties of African breadfruit seeds investigated. The moisture content of the seed ranged from 32.92±0.23 to 50.78±0.19 % (w.b.) as the parboiling time increased. Generally, it was observed that the mean values observed for the physical dimensions (axial dimensions, mean diameters, sphericity, aspect ratio and surface area) increased from 0 to 10 min. parboiling time after which the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: African breadfruit; Parboiling time; Physical properties; Frictional properties.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4918

Effects of land use change on the soil physical and chemical properties and fertility of soil in Sajadrood catchment
Provedor de dados: 111
Autores: Kiakojori, Azadeh Rostam; Gorgi, Mohammad Mehdi Taghavi.
Prioritizing and expanding the agricultural activities by increasing the agricultural commodities are the strategies to create a balance between the increasing population rate and food production to meet the increasing needs of human beings.  The existence of suitable water and soil are the main factors for these activities.  In this study the influence of changing the exploitation of pasture system to farming land system on the physical and chemical properties of the soil in one selection in Sajadrood catchment in the north of Iran was investigated.  Samples were taken at two depths (0-10 cm and 10-20 cm) in four sites.  After experimentation, the gathered data were analyzed using SPSS 21.0 software program.  The results showed that the amount of soil...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Farming land; Pasture; Physical properties; Sajadrood catchment.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2934

Moisture Dependent Physical Properties of Sour-sop
Provedor de dados: 111
Autores: Akande, Fatai Bukola.
Some moisture-dependent physical properties of sour-sop seed were investigated. Results of experiments on rewetted sour-sop seed showed increasing in length, width, thickness, arithmetic and geometric mean diameter, volume, surface area, sphericity, and 1000 seeds weight from 14.91-15.69, 8.71-9.24, 5.39-5.56, 9.67 - 10.16, 8.81 - 9.27 mm, 0.57 – 11.67 cm3,  244.98 - 270.89 mm2, 0.56 - 0.59 and 255.7 – 285 g, respectively within moisture range of 8 – 32.5% (db). An increasing trend for bulk density and true density was observed from 0.52 – 0.59 g/cm3 and 0.47 – 0.60 gcm-3. Porosity of the seed decreased from 9.62 – 4.73 %. Angle of repose was increased linearly from 25.7 – 33.3o with increase in moisture content from 8.0 – 32.5% (db). At all moisture...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sour-sop seed; Moisture content; Physical properties; Post-harvest technology.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3021

Drying and quality features of selected maize varieties dried in commercial processing complexes
Provedor de dados: 111
Autores: Jony, Akhtaruzzaman.
The drying status and quality aspects in terms of physical, nutritional, functional properties and microbial status of three common maize varieties (900M gold, Pioneer 92 and Kavri) dried in different drying complexes in Dinajpur district of Bangladesh are presented in this paper. Total drying varied from18-20 h for drying of freshly harvested maize varieties in the complexes where sun drying method was used. The overall calculation reveled that drying cost in different mills ranged from US$12.12 to US$14.75 per ton of fresh maize (@1US$ equals Tk.80).  The dimensions of the maize varieties as length, width and thickness were found to be ranged from 12.62±0.34 to 14.54±0.32, 10.60±0.35 to 10.24±0.21, 6.38±0.28 to 6.74±0.28 mm, respectively. The 900M gold...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Food Engineering and Technology Maize drying; Drying cost; Physical properties; Nutritional quality; Moisture content; Microbial load.
Ano: 2017
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3984

Determination of Physical and Aerodynamic Characteristics of African Olive (Canarium Schweinfurthii) Nut
Provedor de dados: 111
Autores: Obi, Okey Francis; Ijere, Chimuanya Emeka; Okechukwu, Michael Emeka.
This study investigated the physical and aerodynamic properties of African olive (Canarium schweinfurthii) nuts. The nut mass frequency was identified and three fractions of the nut were defined to determine their properties. Generally, it was observed that the physical and aerodynamic characteristics of the nut were significantly influenced by the unit mass. Comparison of means revealed that the mean values of the nut physical and aerodynamic properties were significantly different between fractions at p&lt;0.05 except for the true density. The static angle of repose appeared higher than the dynamic angle of repose for all the nut fractions. The coefficient of static friction of the nut fractions on different material surfaces was highest on plywood and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural and Bioresources Engineering Canarium schweinfurthii nut; Physical properties; Aerodynamics properties; Models.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4820

Physical and Mechanical Properties of Sweet Corn Plant
Provedor de dados: 111
Autores: Hommood, Momtaz Isaak; Yahya, Azmi; Razif, Muhammad; Mat, Nazmi.
Physical and mechanical properties are important issues to be studied due to its importance in the design of agricultural equipment and its relationship to the production operation. The average physical properties for weight, length, diameter, volume, porosity, repose angle, and angle of friction of sweet corn cobs and some of their components were measured. Moreover, the average mechanical properties for pulling force at three different angles ( 0,  45 and 90 )degree where at 90 degree gave the lowest value of pulling force of corn cobs which was 51.14± 1.97 N, compression force at vertical 497.56± 63.14 N; at horizontal 2801.26± 346.10 N, shearing force at two different angles ( 0 and 45 ) degree where at 45 gave the lowest value of shearing force of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Physical properties; Mechanical properties; Shearing force; Penetration force; Sweet corn.
Ano: 2019
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5306

ASSESMENT OF PALM KERNEL SHELL AS A COMPOSITE AGGREGATE IN CONCRETE
Provedor de dados: 111
Autores: Oti, Okechukwu Peter; Nwaigwe, Kevin Nnanye; Okereke, Ngozi A. A.
This  manuscript  presents  a report on  the  physical properties of palm kernel shell used  here  as a coarse aggregate  and  their  effect  on the strength properties of palm kernel shell concrete.Laboratory research was carried out to observe the effects of replacing crushed granite with palm kernel shell on the compressive strength and density of palm kernel shell concrete. Mix design of 1:2:4 and a water-cement ratio of 0.6 were used to produce concrete specimen cubes of size 150mm3.A total of 60 cubes were made and wholly submerged in water to cure for 28days at intervals of 7days i.e. 7, 14, 21 and 28 days after which their densities and compressive strengths were determined. Granite was replaced with palm kernel shell in the mix at 25% interval...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural Engineering; Construction Palm kernel shells; Coarse aggregate; Curing; Physical properties; Compressive strength.
Ano: 2017
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4036

Physical properties of large cardamom cultivated in north eastern Himalayan region of Sikkim, India
Provedor de dados: 111
Autores: Khura, Tapan K.; Barman, Jitendra D.; Chandra, Ram; Yadav, Sobh N.; Chauhan, Narvendra S.; Rautaray, Swarup K.
The large cardamom is one of the most important spice crops grown in Himalayan region of Sikkim, India.  The capsules of the harvested large cardamom are dried before consumption.  The paper presents the physical properties of  freshly harvested and dried large cardamom capsules.  The geometrical mean diameter, sphericity, bulk density and mean values of angle of repose of the freshly harvested large cardamom capsules were observed to be 18.53±1.73 mm, 0.76, 332.21±14.24 kg m-3 and 28.74±4.04°, respectively.  Whereas for dried large cardamom capsules the values were found to be 11.113±0.92 mm, 0.56, 393.109±9.622 kg m-3 and 29.84±2.93°, respectively.  The peak static coefficient of friction of freshly harvested large cardamom over mild steel, plywood and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Post Harvest Technology large cardamom; Spice crop; Physical properties; Mechanical properties.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2018

Effect of moisture content on engineering properties of oats (Avena sativa L.)
Provedor de dados: 111
Autores: BRAR, HARPREET SINGH; SIDHU, GAGANDEEP KAUR; SINGH, AMARJEET.
The present study was undertaken to investigate the effect of moisture content on engineering properties of OL-09 variety of oat grains. Different engineering properties such as length, width, thickness, geometric mean diameter, volume, surface area, sphericity, bulk density, true density, porosity, angle of repose and angle of internal and external friction were determined in a moisture range of 8%-14% (wet basis, w.b) using standard methods. The physical properties such as length, width, thickness, geometric mean diameter, volume, surface area and sphericity significantly (P &lt;0.05) increased from 15.01 to 16.19 mm, 3.06 to 3.60 mm, 2.78 to 3.11 mm, 5.03 to 5.65 mm, 37.00 to 52.98 mm3, 76.03 to 94.80 mm2 and 33.58% to 35.01%, respectively as the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oats; Engineering properties; Moisture content; Physical properties; Frictional properties.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3488

Engineering properties of luffa (L. cylindrica) seed relevant to the processing machineries
Provedor de dados: 111
Autores: Dauda, Solomon Musa; Aliyu, Mohammed; Balami, Ayuba Audu; Mohammed, Ibrahim Shaba; Abdulfatai, Yusuf.
Some physical and mechanical properties of Luffa (L. cylindrica) seeds were investigated at five different moisture content levels of 6%, 12%, 18%, 24% and 30%.  The physical properties which included geometric mean diameters (minor, major, intermediate), sphericity, weight, bulk density and coefficient of static friction were determined.  The mean values of the physical properties of the seeds were determined as major diameter 1.1423-1.2427 cm, width 0.54-0.6743 cm, thickness 0.8633-1.079 cm, geometric mean diameter 0.8102-0.9663 cm, sphericity 0.7104-0.7703, surface area 2.0620-2.9512 cm2, specific gravity 0.7600-1.0267, bulk density 0.3730-0.6053 g m-3, and porosity 0.5823-0.0430, respectively.  The physical properties of the seed showed that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Luffa seeds; Moisture content; Physical properties; Mechanical properties.
Ano: 2017
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4138

Moisture-dependent physical properties of Plantain (Plantago major L.) seeds by image processing analysis
Provedor de dados: 111
Autores: Fadavi, Ali; Mirzabe, Amir Hossein; Mansouri, Ali.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plantain; Image processing; Moisture content; Physical properties.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3325

Engineering properties of Roselle (Hibiscus sabdariffa) calyxes
Provedor de dados: 111
Autores: Aregbesola, Omotayo Adeteju; Faborode, Micheal Oladimeji; Ezeokoli, Obinna Ikenna.
Physical, mechanical and thermal properties of dried and freshly harvested Roselle calyxes were determined using standard procedures based on literature. The obtained results showed that in terms of shape and size, the red variety was more slender with a pointed apex when compared to the dark red variety (Hibiscus sabdariffa. L). Porosity values were close for the dried calyxes and were 53.85% for fresh calyxes. A high percent (72.21%) of whole calyxes was obtained for the fresh calyxes when compared to that for the two varieties of dried calyxes studied. The value of angle of repose for the fresh calyxes was 51.530 while the dry calyxes had lower values (23.10 and 22.40o) for red and dark red calyxes, respectively. Results also showed that the coefficient...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Agricultural engineering; Food processing Roselle calyxes; Physical properties; Mechanical properties; Thermal properties; Dry calyxes; Fresh calyxes.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3664

Performance evaluation and optimization of the maize shelling operation of the multi-purpose farm vehicle
Provedor de dados: 111
Autores: Kabenge, Isa; Nsubuga, Denis; Zziwa, Ahamada; Kiggundu, Nicholas; Wanyama, Joshua; Banadda, Noble.
Small-scale farmers register high postharvest losses partly due to failure to carry out primary processing operations. Most of the maize shellers on the Ugandan market lead to high percentage of broken maize grains thus raising the risk of aflatoxin infection during storage. In this study, the operation of an existing maize sheller on the market with a shelling speed of 870 rpm for maize at 13 % moisture content was tested. The main objective of this study therefore was twofold; (i) to develop and evaluate a maize sheller and (ii) to optimize the multi-purpose vehicle shelling operation. The improved maize sheller was designed, fabricated, evaluated and optimized using a factorial experiment with shelling speed and moisture content as the main effects at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maize Shelling; Multipurpose vehicle; Physical properties; Engineering properties.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5873

Exploring the best model for sorting Blood orange using ANFIS method
Provedor de dados: 111
Autores: Sabzi, Sajad; Javadikia, Payam; Rabbani, Hekmat; Adelkhani, Ali; Naderloo, Leila.
OranOrange has abundant nutritional properties and is consumed worldwide.  Sorting oranges of different masses based on their physical traits could help reduce packaging and transportation cost.  The ‘Blood’ cultivar of Iranian oranges from Kermanshah province  of Iran (7.03 °E 4.22 °N) was used in this study.  100 samples were randomly selected.  During the two-day experiment, all measurements were carried out inside the laboratory at mean temperature of 24°C.  In this study, some physical properties of ‘Blood’ orange were measured, such as length, width, thickness, volume, mass, mean value of geometric diameter, sphericity and projected area.  ANFIS and linear regression models were employed to predict the mass based on sphericity and mean of projected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Linear regression; Orange; Packaging; Physical properties; Sorting.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2348

Determine some engineering properties of snake melon (cucumis melo var. flexuosus)
Provedor de dados: 111
Autores: Jahanbakhshi, Ahmad.
The physical and mechanical properties of agricultural products have an effective role in determining the quality of the products, reducing the potential damage caused by transportation and eventually designing the equipment used in the processing of the products. In this study, some physical and mechanical properties of snake melon were measured under standard conditions. Physical properties included length, width, thickness; mean diameter (geometric and arithmetic), sphericity, surface area, aspect ratio, mass, volume and density. The mechanical properties of the samples and their lengths were measured under the conditions of pressure (bruise), bending (break) and cutting of the snake melons in halves using a Zwick/Roell Instron testing machine based on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Snake melon; Physical properties; Mechanical properties.
Ano: 2018
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4305

Determination of physical properties of apricot fruit and  proper box height for storing and handling the apricot fruit
Provedor de dados: 111
Autores: Hazbavi, Isa.
In avoiding damage to fruit species, the permissible falling height and permissible static pressure are of great importance.  The former is important in planning harvesting and handling operations, the latter in selecting the height of transport containers.  Fruits are generally transported in containers.  The static and dynamic forces which then act on the fruit will cause damage if they exceed given value.  The static force may be calculated from the weight of the fruit column being transported while the dynamic load is a consequence of vibration caused by transport.  The permitted static load for a given fruit may be determined experimentally.  The aim of this study was design of a suitable height based on the measured properties using Ross and Isaacs’s...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apricot fruit; Static force; Height box; Physical properties.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2669

Determining some physical properties of Azivash (Corchorus Olitorious L.) seed
Provedor de dados: 111
Autores: Azadbakht, Mohsen; Pourbagher, Roghayeh.
Used Azivash seed in the research has been provided in summer 2013. The samples were cleaned and separated manually and residuals and broken seeds were taken apart it and healthy seed was provided for testing. Then diameter, area of image, and round coefficient, were calculated using image processing application. Mass of 1000 seeds, mass density, real density and porosity percentage, static friction coefficient, repose angle in two modes of fullness and emptiness were measured. Liquid replacement method has been used to calculate density and volume of the seeds. The results showed that a positive relationship between physical properties of Azivash seed including geometric properties (diameter, volume), gravity properties (weight of 1000 seeds, real density...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Azivash seed; Physical properties; Moisture content.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3349

Physical and Mechanical Properties of Sweet Corn Plant
Provedor de dados: 111
Autores: Hommood, Momtaz Isaak; Yahya, Azmi; Razif, Muhammad; Mat, Nazmi.
Physical and mechanical properties are important issues to be studied due to its importance in the design of agricultural equipment and its relationship to the production operation. The average physical properties for weight, length, diameter, volume, porosity, repose angle, and angle of friction of sweet corn cobs and some of their components were measured. Moreover, the average mechanical properties for pulling force at three different angles ( 0,  45 and 90 )degree where at 90 degree gave the lowest value of pulling force of corn cobs which was 51.14± 1.97 N, compression force at vertical 497.56± 63.14 N; at horizontal 2801.26± 346.10 N, shearing force at two different angles ( 0 and 45 ) degree where at 45 gave the lowest value of shearing force of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Physical properties; Mechanical properties; Shearing force; Penetration force; Sweet corn.
Ano: 2020
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5306

Determination of some physical and mechanical properties of Barkat variety of broad bean
Provedor de dados: 111
Autores: Azadbakht, Mohsen; Ghajarjazi, Ehsan; Abdigaol, Farhad; Amiri, Emad.
In this research the effect of moisture at three levels (57, 67, and 77 %) on the physical properties of the Barkat bean variety including, including dimensions, geometric mean diameter, volume, sphericity index and the surface area was determined. And the influence of different moisture content levels (67,57 and 77%), in two loading orientation (longitudinal and transverse) and three loading speed (8,6 and 10 mm min-1) on the mechanical properties of the maximum deformation, rupture force, rupture energy, toughness and the power to break the broad bean was investigated. It was observed in the mechanical properties that moisture changes and loading speed were affective at 1% on rupture force, rupture energy, and toughness. Loading orientation was affective...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broad bean; Physical properties; Mechanical properties.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3339

Moisture-dependent physical and mechanical properties of hawthorn (Crataegus aronia)
Provedor de dados: 111
Autores: Jaliliantabar, Farzad; Lorestani, Ali Nejat; Jaliliantabar, Farzad Jaliliantabar.
 In this study, some important physical and mechanical properties of the hawthorn and the effect of moisture on them were investigated.  The effect of moisture at two levels (64.01% and 70.1%, w.b.) on the geometric dimensions (length, width, thickness, arithmetic mean diameter, geometric mean diameter, degree of sphericity, surface area, projected area, criteria projected area, mass, volume and the apparent), true density, porosity, coefficient of static friction and coefficient of rolling on three levels (wood, glass and galvanized) and mechanical properties obtained by impact testing machine using a randomized factorial design was evaluated by software SPSS18.  Results indicate that moisture has an effect on the physical properties of the hawthorn.  The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hawthorn; Physical properties; Maximum force at impact; Mechanical properties; Moisture content.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2676

Capability of grass in recovery of a degraded area after coal mining
Provedor de dados: 115
Autores: Stumpf,Lizete; Pauletto,Eloy A.; Costa de-Castro,Rafaela; Spinelli-Pinto,Luiz F.; Fontana-Fernandes,Flavia; Stumpf da-Silva,Tiago; Vaz-Ambus,Jordano; Furtado-Garcia,Gabriel; Rodrigues de-Lima,Claudia L.; Nunes,Márcio R.
Surface coal mining causes an intense topographic and hydrologic change in the area with suppression of local vegetation, degrading the environment. One main problem presented by the rehabilitated soil refers to physical disruption of the soil, which delays the regrowth of plant species in the mining area. The objective of this study was to evaluate the influence of four grass species in the retrieval of the rehabilitated soil's physical properties at a recovered coal mine area in Candiota, Rio Grande do Sul State, southern Brazil. With the data an ANOVA was performed and treatments means were compared using Tukey test (p ≤0.05). The treatments were: T1-Hemarthria altissima; T2-Paspalum notatum; T3-Cynodon dactylon; T4-Urochloa brizantha; a rehabilitated...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemarthria altissima; Paspalum notatum; Cynodon dactylon; Urochloa brizantha; Rehabilitated soils; Physical properties.
Ano: 2014
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000500002

Characterization of corn landraces planted grown in the campos gerais region (Paraná, Brazil) for industrial utilization
Provedor de dados: 52
Autores: Pinto,Alessandra Teixeira Barbosa; Pereira,Joyce; Oliveira,Tatiana Roselena de; Prestes,Rosilene Aparecida; Mattielo,Rodrigo Rodrigues; Demiate,Ivo Mottin.
This work has the objective of characterizing twenty corn landraces grown in the Campos Gerais region (Paraná State) in relation to its chemical composition (moisture, ash, protein, ether extract, dietary fiber and starch) and physical properties (weight of 1000 grains, real density, flotation index, granulometry and color). In addition, also the lab scale processing of the kernels from the varieties was carried out for producing starch; starch purity was evaluated by measuring its protein contamination. Amylose contents and viscoamylograph profile were also evaluated. The results showed that the evaluated landraces have differences in chemical composition as well as in pericarp/endosperm/germ proportions and consequently it should have different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maize landraces; Chemical composition; Starch; Physical properties; Rapid viscoanalyzer.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000700003

Analogy of physicochemical attributes of two grape seeds cultivars
Provedor de dados: 118
Autores: Ahmadi,Seyed Mohammad; Siahsar,Barat Ali.
In this study, a range of physicochemical properties (dimensions, kernel volume, mass unit, bulk and true densities, porosity, terminal velocity, static friction coefficient against different surfaces, oil content and fatty acids composition) of the Bojnordi and Fakhri cultivars of grape seeds were studied. Fatty acid composition for both cultivars of grape seeds consisted of palmitic, stearic, oleic, linoleic and linolenic acid. The values for palmitic, stearic, oleic, linoleic and linolenic acid for the Bojnordi cultivar were 9.56, 4.37, 22.87, 62.85 and 0.33% and for the Fakhri cultivar were 9.22, 4.33, 19.75, 66.40 and 0.28%, respectively. All physical properties of the grape seed cultivars were significantly affacted by the moisture content in the...
Tipo: Journal article
Palavras-chave: Chemical properties; Fatty acid; Grape seed; Physical properties.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000200014

Physical and spectroscopic characterization of Pakistani honey
Provedor de dados: 118
Autores: ur-Rehman,Saif; Farooq Khan,Zia; Maqbool,Tahir.
Honey is a naturally sweet and viscous fluid produced by honeybees {Apis mellifera) from the néctar of flowers that, by definition, does not include any other substances. The objectives of this work were to characterize Pakistani honey, physically and chemically in relation to international standards, and to study the effects of adulteration with sugar syrup on the physical properties of honey. For this purpose, 200 honey samples obtained from 15 different locations in Pakistán, ranging from desert to hilly áreas, were collected in 2005-2006. Samples were prepared by the acid digestión method. Physical properties, conductance, surface tensión, and pH were determined using digital instruments. The most abundant minerals found in Pakistani honey samples were...
Tipo: Journal article
Palavras-chave: Acid digestión; AAS; Honey adulteration; Honey; Major and minor elements; Physical properties.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000200009