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| Registros recuperados: 77 | |
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| AL-Dairi, Mai; Pathare, Pankaj B. |
| Quality deterioration in tomato along the supply chain due to postharvest losses has become a continual challenge in Middle East countries. The aim of this study is to determine the changes in tomato quality parameters during storage. Fresh tomatoes were purchased from the Central Market of Fruits and Vegetables and stored at 10oC and 22oC for 12 days to assess color, weight loss, firmness and TSS parameters. Statistical analysis like (R2, X2, SE and RMSE) and ANOVA were performed using SPSS software. Experimental results showed a high significant impact (p < 0.05) in tomato quality parameters such as color, firmness and weight loss stored at 22oC. Storage at 22oC had a rapid alteration of a* and L* parameters to the darker region. A slow increase... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Color; Firmness; Kinetic model; Quality; Tomato. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6423 |
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| Sauceda-Acosta,Carlos P.; González-Hernández,Víctor A.; Sánchez-Soto,Bardo H.; Sauceda-Acosta,Raúl H.; Ramírez-Tobías,Hugo M.; Quintana-Quiroz,José G.. |
| Resumen El color y área foliar (AF) son importantes en estudios fisiológicos y fitogenéticos, pero su obtención es laboriosa, incluso con integradores y colorímetros. Ambas características pueden medirse con análisis de imágenes digitales (AID), pues, aunque existen programas gratuitos específicos para obtener el AF éstos requieren intervención del usuario, no registran las dimensiones ni coloración foliar. El objetivo de este estudio fue mostrar el funcionamiento de Macf-IJ para medir área y color foliar mediante AID. Los resultados se compararon con mediciones manuales y del integrador Li-Cor 3000® del área de siete figuras geométricas. También AF se midió en 13 herbáceas; el color y el contenido relativo de clorofila (CRC), con SPAD 502®, en Rhynchosia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Área foliar; Color; Imágenes digitales; Li-Cor 3000; SPAD 502. |
| Ano: 2017 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000400409 |
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| Costa,Dorival Pereira Borges da; Roça,Roberto de Oliveira; Costa,Quézia Pereira Borges da; Lanna,Dante Pazzanese Duarte; Lima,Erico da Silva; Barros,Wander Miguel de. |
| The objective of this study was to evaluate the effect of addition of different levels of cottonseed (0, 14.35, 27.51 and 34.09 kg/100 kg) in the diet of Nellore steers on the meat characteristics. Thirty-six steers (average initial body weight of 333.50 and average age of 20 months) were kept in feedlot stalls for 94 days, each stall with three animals. The experiment was a completely randomized design with four treatments and nine replications. The values of protein, fixed mineral residue, shear force, lipid oxidation, meat color and fat color were similar among the treatments. The increase of the cottonseed levels in the diet reduced the amount of intramuscular fat and increased the moisture content in the meat linearly. Meat aroma and flavor were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aroma; Color; Conjugated linoleic acid; Flavor; Lipid oxidation; Shear force. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000300006 |
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| Cruz,F.L.; Silva,A.A.; Machado,I.F.M.; Vieira,L.C.; Esteves,C.; Fassani,E.J.; Faria,P.B.. |
| ABSTRACT The purpose was to evaluate the effects of gender and of different genotypes of chickens on the physicochemical parameters and centesimal composition, related to the quality of meat. The design was completely randomized arranged in 5x2 factorial scheme, five genotypes (Índio Gigante - IG; New Hampshire - NHS; Gigante Negra de Jersey - GNJ; poultry from the crossing between the IG and NHS breeds - IG x NHS; and between the IG and GNJ breeds - IG x GNJ) and two genders, with five repetitions and each one represented by three poultry, totaling 150 animals, slaughtered at 105 days. The parameters evaluated on the breast and thigh were: centesimal composition (moisture, ether extract - EE, protein and ash), ultimate pH, color (L*- luminosity, a*-... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Shear force; Índio gigante; Luminosity; Protein; Color. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000100254 |
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| Vit,Patricia; Gutiérrez,María Gabriela; Titera,Dalibor; Bednar,Michael; Rodríguez-Malaver,Antonio Jesús. |
| La bioactividad de la miel de abejas ha sido aplicada en apiterapia tradicional y moderna. El origen botánico ocasiona variaciones en los principios activos y en el color de este producto, desde incoloro y blanquecino hasta marrón oscuro en la escala ámbar. Se evaluó la actividad antioxidante total (AAT) de 50 mieles enviadas al servicio de Análisis Químico del Instituto de Investigaciones Apícolas en Dol, República Checa, con el método del catión radical ABTS·+. Se encontraron las siguientes variaciones de AAT (µmoles equivalentes Trolox) para 22 mieles florales (60,12-287,55), 15 mieles de mielada (53,71-280,04) y 13 mieles mixtas (43,55-290,35). La AAT no varió significativamente según el origen botánico de las mieles, pero fue directamente proporcional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Actividad antioxidante; Clasificación actividad antioxidante total; Miel de abejas; Flavonoides; Polifenoles; Color; Origen botánico; Mielada; República Checa. |
| Ano: 2008 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572008000200009 |
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| Stenger, Pierre-louis; Ky, Chin-long; Reisser, Celine; Duboisset, Julien; Dicko, Hamadou; Durand, Patrick; Quintric, Laure; Planes, Serge; Vidal-dupiol, Jeremie. |
| The shell color of the Mollusca has attracted naturalists and collectors for hundreds of years, while the molecular pathways regulating pigment production and the pigments themselves remain poorly described. In this study, our aim was to identify the main pigments and their molecular pathways in the pearl oyster Pinctada margaritifera—the species displaying the broadest range of colors. Three inner shell colors were investigated—red, yellow, and green. To maximize phenotypic homogeneity, a controlled population approach combined with common garden conditioning was used. Comparative analysis of transcriptomes (RNA-seq) of P. margaritifera with different shell colors revealed the central role of the heme pathway, which is involved in the production of red... |
| Tipo: Text |
Palavras-chave: Pinctada margaritifera; Color; Pigment; Transcriptomics; Raman spectroscopy. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00685/79671/82446.pdf |
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| Alfnes, Frode; Steine, Gro. |
| We conduct a within-sample test of hypothetical bias and parameter equality between a hypothetical stated choice (SC) experiment using pictures and a real choice (RC) experiments using products. With exception of the none-of-these alternative-specific dummy, we cannot reject parameter equality between the two datasets. However, when we estimate the models separately with no parameter restrictions, the SC experiment gave WTP estimates that were approximately 50 percent higher and marginal WTP estimates that were almost two times as high as the corresponding estimates from the RC experiment. However, even though the monetary value of the WTP disparity was large, the disparity between the WTP estimates from the two data sets was not statistically significant. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Choice experiment; Hypothetical bias; Color; Mixed logit; Salmon; Willingness to pay; Consumer/Household Economics; C81; C93; D12; Q22. |
| Ano: 2005 |
URL: http://purl.umn.edu/24761 |
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| Amiri Chayjan, Reza; Fealekari, Mosayeb. |
| Abstract: Optimization of convective drying process of Persian shallot was investigated using dependent variables of effective moisture diffusivity (Deff), specific energy consumption (SEC), shrinkage and color changes. The central composite design (CCD) was selected for design and optimization of the process. The second-order polynomial models with transformed responses were developed from experimental data to generate three dimensional response surfaces and contour plots. Experiments were performed at air temperatures of 40°C, 55°C and 70°C, air velocities of 0.5, 1.5 and 2.5 m/s and slice thicknesses of 2, 4, and 6 mm in triplicate. Based on response surface and desirability functions, the optimum conditions for Persian shallot drying were: air... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Color; Diffusivity; Energy; Central composite design; Shrinkage. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2807 |
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| Ponsano,EHG; Pinto,MF; Garcia-Neto,M; Lacava,PM. |
| The objective of this study was to evaluate the effect of different supplementation levels of Rhodocyclus gelatinosus biomass on the performance and pigmentation of broilers. Cobb broilers were raised in pens and were fed a sorghum-based diet until 35 days of age. At the 36th day of age, ninety-six birds were randomly distributed to four treatments consisting of experimental diets with different supplementation levels of Rhodocyclus gelatinosus biomass (0, 75, 150 and 300 ppm) added to the finisher basal diet, which were given for seven days. A completely randomized experimental design was used, with four treatments, four replicates and six broilers per parcel. Birds and diets were weighed at the 36th and at the 42nd day of age for performance analysis.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass; Broilers; Color; Performance; Rhodocyclus gelatinosus. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000400008 |
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| Bueno,F.R.; Silva,C.A.; Oba,A.; Almeida,M.; Medeiros,L.G.; Pitarello,A.S.; Shinyashike,A.T.. |
| ABSTRACT A total of 640 one-day-old Cobb broiler chicks, half male and half female, were reared up to 49 days of age. A completely randomized 2 × 4 factorial design was used. Experimental treatments consisted of four levels of organic zinc supplementation and one control (inorganic zinc supplementation) and two levels of sex (female and male), with four replicates of 16 birds per experimental plot. Animal performance, carcass and cut yields, and meat quality were evaluated. Feed intake increased with zinc supplementation. Broilers that received the lowest level of organic zinc showed better feed conversion than those fed an equivalent level of inorganic zinc. Increased levels of organic zinc reduced the abdominal fat content in females but impaired the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birds; Color; Lipid oxidation; Oligoelement; Organic minerals; Meat pH. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352020000100224 |
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| Tosun,Ilkay; Ustun,N. Sule; Tekguler,Belkis. |
| Blackberry (Rubus L.) is a naturally growing fruit in Anatolia. Consumption of fresh and frozen blackberries has increased in the past few years in Turkey. The aim of this study is to analyze blackberry at three levels of ripeness taking into account some physical and chemical properties (color, dry matter, soluble solids, total sugar, titratable acidity, pH, total phenolics, total anthocyanin, and minerals) in order to understand this behavior during the ripening process. Blackberry fruits were harvested at green, red and ripe (mature) stages. The determination of fruit maturity was based on fruit surface color. The dry matter, total phenolics and Hunter L, b values decreased but soluble solids, total sugar and total anthocyanins increased with maturity.... |
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Palavras-chave: Rubus L.; Color; Anthocyanin; Mineral matter. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000100012 |
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| Becker,Fernanda Salamoni; Eifert,Eduardo da Costa; Soares Junior,Manoel Soares; Tavares,July-Ana Souza; Carvalho,Ana Vânia. |
| The transformation of broken grains into native flours modified by extrusion is an alternative to add value to these co-products from the paddy rice processing. This study aimed to analyze the process of extrusion cooking on the physical and functional characteristics of extruded flours obtained from different rice genotypes (IRGA-417, BRS-Primavera and CNA-8502). The experimental design was completely randomized (3x2 factorial) with four original replicates and analysis of variance to assess particle size, instrumental color parameters (L*, a* and b*), water absorption index (WAI), milk absorption index (MAI), oil absorption index (OAI), water solubility index (WSI) and milk solubility index (MSI) of rice flour. The extrusion process promoted changes in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Orysa sativa L; Co-products; Electron microscopy; Color; Solubility in water. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000400007 |
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| Zaions,Ivanor; Picolo,Ana Paula; Gonçalves,Itamar Luís; Borges,Ana Claudia Piovezan; Valduga,Alice Teresa. |
| In Brazil, yerba mate is consumed after processing; however, in Chile and Uruguay, the consumers prefer the cured product, which acquires a yellow color. For that yerba-mate is stored for a period of six months to one year, which increases the cost of the final product for the overseas market. This study evaluated the effect of humidity and temperature in maturation chamber on the time required for the product to get this characteristic. The changes in the color, pH, moisture and water activity were evaluated during the time of storage in different conditions of temperature and humidity. Yerba-mate subjected to higher temperature and humidity showed nearest color of the product submitted to natural storage. The loss of green color was related to the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yerba-mate; Early maturation; Color. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500663 |
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| Arboitte, Miguelangelo Ziegler; Instituto Federal Catarinense - Campus Sombrio; Brondani, Ivan Luis; Universidade Federal de Santa Maria; Deschamps, Francisco Carlos; Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina; Bertoldi, Fabiano Cleber; Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina; Alves Filho, Dari Celestino; Universidade Federal de Santa Maria; Rumpel, Luciane Segabinazzi; Universidade Federal de Santa Maria. |
| O objetivo deste trabalho foi verificar a influência do biótipo pequeno e médio de novilhos Aberdeen Angus superjovens na composição da carne do longissimus dorsi (LD). Foram utilizadas secções do LD de oito novilhos com biótipo pequeno e dez com biótipo médio, confinados por 158 dias, apresentando ao abate idade e peso vivo médio de 456 dias e 429 kg. A alimentação foi constituída de silagem de sorgo e concentrado na relação 60:40 nos primeiros 63 dias e após 50:50 até o abate. O biótipo foi calculado por meio da fórmula: B = -11,548 + (0,4878 x h) - (0,0289 x ID) + (0,0000146 x (ID)²) + (0,0000759 x h x ID); h = altura em polegadas e ID=idade em dias. A carne do LD apresentou gordura intramuscular média (10,11 pontos; p = 0,7034), coloração vermelha... |
| Tipo: Pesquisa de campo; analise laboratorial |
Palavras-chave: 5.04.05.00-4 ácidos graxos; Cocção; Colesterol; Cor; Lipídios; Maciez fatty acids; Cooking; Cholesterol; Color; Lipids; Shear force. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10746 |
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| Fraga,Alessandro Luís; Thomaz,Maria Cristina; Kronka,Rodolfo Nascimento; Budiño,Fábio Enrique Lemos; Huaynate,Rizal Alcides Robles; Scandolera,Antônio João; Ruiz,Urbano dos Santos; D'Angelis,Flora Helena de Freitas. |
| To evaluate the effect of different levels of qualitative feed restriction (0, 5, 10, 15 and 20%) on pork quality and muscle morpho-histochemical characteristics, 60 castrated male swines were used. Ten animals were slaughtered at 89 kg BW. Other 50 pigs were fed experimental diets and slaughtered at 128 kg BW. Qualitative restriction increased pH45, and water holding capacity, and reduced the redness, yellowness and cholesterol concentrations of Longissimus lumborum. Quadratic tendency for oleic acid contents of loin and fiber cross-section area of Multifidus dorsi (P=0.08) were observed, with maximum point at 11-12% of restriction. No effect (P>0.1) on percentage of M. dorsi fibers SO, FG and FOG was found. The meat from 128-kg-BW pig showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Color; Fatty acid profile; Muscle fiber; Nutritional value; Tenderness. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500012 |
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| Registros recuperados: 77 | |
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