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Abiotic factors influencing tropical dry forests regeneration BABT
Ceccon,Eliane; Huante,Pilar; Rincón,Emanuel.
Tropical dry forests represent nearly half the tropical forests in the world and are the ecosystems registering the greatest deterioration from the anthropogenic exploitation of the land. This paper presents a review on the dynamics of tropical dry forests regeneration and the main abiotic factors influencing this regeneration, such as seasonal nature, soil fertility and humidity, and natural and anthropic disturbances. The main purpose is to clearly understand an important part of TDF succession dynamics.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical dry forests; Regeneration; Disturbances; Seasonal variability; Fertility; Moisture.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000300016
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Afericao do grau de umidade de sementes de soja para execucao do teste de tetrazolio. Repositório Alice
COSTA, N.P.; MARCOS FILHO, J..
Com o objetivo de determinar o grau adequado de umidade das sementes, visando a redução do período de condicionamento (tempo de embebição) que antecede a coloração de semente de soja com tetrazólio foram estudados seis períodos de embebição (6h, 8h, lOh, 2h, 14h e 16h) e quatro temperaturas (25°c, .3o0c, 35°c e 40°C), tendo como testemunha o procedimento padrão (16h/25°c) em sementes das cultivares BR-30 e BR-16 . Os Os resultados mostraram que o período lOh de embebição e a temperatura de 4o0c propicia graus de umidade (%) das sementes que não diferem estatisticamente da testemunha (16h/2s0c).O grau de umidade das sementes das duas cultivares, após o pré-condicionamento, ficou ao redor dos 37%. Nessa faixa de umidade geralmente consegue-se um padrão de...
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Soja; Umidade; Semente; Teste de tetrazolio; Afericao; Embebicao; Vigor; Brasil; Parana; Soybean; Moisture; Seed; Tetrazolium test; Absorption; Brazil.
Ano: 1993 URL: http://www.alice.cnptia.embrapa.br/handle/doc/444613
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Assessment of physical and physicochemical quality of main chocolates traded in Peru Acta Agron. (Palmira)
Chire-Fajardo,Gabriela Cristina; Valdivia-Arrunategui,Rocío Alicia; Orihuela-Rivera,Carmen Adela; Ureña- Peralta,Milber Oswaldo.
Abstract: The quality of the main chocolates marketed in Peru was determined. The physical aspect: color (C *, H *, IB), hardness and particle size, as well as physicochemical: water activity (aw), moisture, fat and ash, correlating with the declaration of ingredients presented in the packaging. We evaluated 30 experimental units of chocolates (imported, domestic, dark chocolate and milk) by experimental methods, randomly acquired from different establishments. The difference between color and hardness by origin was attributed to the dairy component. Dark chocolate had lower values of color components (8.75 ± 0.94 C *, 7.60 ± 4.71 H * and 28.46 ± 0.86 IB) than milk constituents (15.04 ± 2.78 C, 34.59 ± 7.46 H * and 34.55 ± 2.87 IB) and in hardness values...
Tipo: Journal article Palavras-chave: Ash; Color; Fat; Moisture; Particle size; Texture; Water activity.
Ano: 2017 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000200164
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Association between aflatoxin and aflatoxigenic fungi in Brazil nut (Bertholletia excelsa H.B.K.) Ciênc. Tecnol. Aliment.
Pacheco,Ariane Mendonça; Lucas,Ana; Parente,Rosana; Pacheco,Neuzimar.
Brazil nut has a high nutritional content and is a very important trade commodity to some Latin American countries. In order to evaluate its safety, 120 samples from different stages of the productive chain were analyzed in terms of: moisture content (mc), aflatoxigenic fungi and aflatoxin (LOQ = 1.95 μg.kg-1 total aflatoxin) using TLC. Among all samples, 4 (6.7%) from the receiving area, and 5 (16.7%), from retail presented aflatoxins above the LOQ, but the amount of aflatoxins was below the LOQ after the samples were dried in the plant. The positive samples were above the limit of total aflatoxin permitted by the European Union (4.0 μg.kg-1) and Brazil (30 μg.kg-1). The mc mean was 22.43% in the receiving area, which is higher than that in the other...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bertholletia; Aspergillus; Moisture; Chromatography.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000200007
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Avaliação de características recalcitrantes de sementes de castanha-do-brasil. Infoteca-e
FIGUEIRÊDO, F. J. C.; CARVALHO, J. E. U. de..
1994
Tipo: Séries anteriores (INFOTECA-E) Palavras-chave: Castanha-do-brasil; Caracteristica recalcitrante; Semente; Umidade; Emergencia; Vigor; Velocidade de emergencia; Camara seca e fria; Camara seca e quente; Camara umida e fria; Bertholletia excelsa; Brasil nut; Recalcitrant; Characteristics; Seed; Moisture; Vigour; Speed of emergence; Dry and cold chamber; Dry and hot chamber; Humid and cold chamber.
Ano: 1994 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/379044
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Brazil nut sorting for aflatoxin prevention: a comparison between automatic and manual shelling methods Ciênc. Tecnol. Aliment.
Pacheco,Ariane Mendonça; Martins,Maristela.
The impact of automatic and manual shelling methods during manual/visual sorting of different batches of Brazil nuts from the 2010 and 2011 harvests was evaluated in order to investigate aflatoxin prevention.The samples were tested as follows: in-shell, shell, shelled, and pieces in order to evaluate the moisture content (mc), water activity (Aw), and total aflatoxin (LOD = 0.3 µg/kg and LOQ 0.85 µg/kg) at the Brazil nut processing plant. The results of aflatoxins obtained for the manually shelled nut samples ranged from 3.0 to 60.3 µg/g and from 2.0 to 31.0 µg/g for the automatically shelled samples. All samples showed levels of mc below the limit of 15%; on the other hand, shelled samples from both harvests showed levels of Aw above the limit. There were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bertholletia; Water activity; Moisture.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000200023
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Brooding in a temperate zone land snail: seasonal and regional patterns Naturalis
Sulikowska-Drozd, A.; Maltz, T.K.; Kappes, H..
The goal of this study is to assess if the reproductive strategy of a brooding land snail shifts along a climatic gradient. We focused on the following traits: timing and length of the reproductive season, brood size, ontogenetic dynamics of embryos, and reproductive mode (viviparity versus egg-laying). We dissected the central European door snail Alinda biplicata, collected monthly from eight populations covering the oceaniccontinental climatic gradient within the species’ distribution range. Forty percent of the 1706 dissected individuals were brooding. The species displayed a spring-summer reproductive activity pattern: intrauterine brooding was recorded between March and September; first embryos of a developmental stage that equals that of live-born...
Tipo: Article / Letter to the editor Palavras-chave: Clausiliidae; Gastropoda; Life cycle; Moisture; Mollusca; Vivaparity; 42.73.
Ano: 2013 URL: http://www.repository.naturalis.nl/record/447983
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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. Infoteca-e
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
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Characterization of residual stresses in wound composite tubes ArchiMer
Casari, Pascal; Jacquemin, Frederic; Davies, Peter.
This paper presents a method for the characterization of residual stresses in thick filament wound tubes. The three materials considered in the study are wet wound epoxy composite tubes based on E glass, R glass and T700 carbon fibres with three winding angles, [+/- 35], [+/- 55] and [+/- 851 with respect to the longitudinal axis. The aim of the present work is to measure internal stresses, based on strains liberated by cutting composite tubes, and to compare results with predictions from a residual stress model based on the classical equations of solid mechanics. This leads to a simple technique which allows the quick identification of the effects of manufacturing and moisture on the internal multi-axial stress level.
Tipo: Text Palavras-chave: Moisture; Tube; Composite; Residual stress.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1212.pdf
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Comparison of methodologies for moisture determination on dried bee pollen samples Ciênc. Tecnol. Aliment.
Melo,Illana Louise Pereira de; Almeida-Muradian,Ligia Bicudo de.
Bee pollen moisture value is one of the quality parameters for this product. Some countries such as Argentina, Brazil, Bulgaria, Poland and Switzerland have bee pollen regulations on quality parameters, but these are not clear regarding which method should be used for moisture determination. The aim of this paper was to compare six methods of moisture determination in dried bee pollen samples. The methods were: conventional oven at 100 °C, vacuum oven at 70 °C, desiccator with sulfuric acid, drying out process with infrared light at 85 °C, lyophilization and Karl Fisher's method. Based on the results, the best methods for moisture determination of bee pollen were the drying process with infrared and the lyophilization, since these have shown lower moisture...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bee pollen; Moisture; Methods.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000100029
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Condicoes de armazenamento e sua influencia na incidencia de insetos em sementes de sorgo. Repositório Alice
LOPES FILHO, F.; ASSUNCAO, M. V.; VIEIRA, F. V..
O objetivo deste trabalho foi avaliar a influencia do tipo de embalagem, da umidade relativa e da temperatura de armazenamento na insidencia de insetos em sementes de sorgo granifero, cv. EA-955. As sementes foram acondicionadas em latas de metal vedadas, sacos de pano (algodao) e sacos de polipropileno e armazenamento sob condicoes naturais, em quatro locais do Estado do Ceara: Fortaleza, Quixada, Morada Nova e Ubajara. No inicio, e a cada dois meses durante o periodo de armazenamento, determinou-se a flutuacao do conteudo de umidade das sementes e a porcentagem de sementes danificadas por insetos. Foi usado o delineamento de blocos inteiramente casualizados, com tratamentos constituidos de cinco periodos de armazenamento, (0, 2, 4, 6 e 8 meses), tres...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Ataque; Sorghum; Seed; Insect damage; Moisture; Armazenamento; Inseto; Semente; Sorghum Bicolor; Sorgo; Umidade; Storage.
Ano: 1987 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/132473
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Convective dehydration kinetics of noodles prepared from taro (Colocasia esculenta), rice (Oryza sativa) and pigeonpea (Cajanus cajan) flours CIGR Journal
Kaushal, Pragati; Sharma, Harish Kumar.
Drying characteristics of noodles prepared from 50% taro and remaining equal proportions of rice and pigeonpea flours were investigated in a convective type dryer for a temperature range of 50°C to 80°C at a constant air velocity of     1.5 m s-1.  Results indicated that drying took place in falling rate period.  The sample dried at 50°C was found better in color as compared to samples at 60°C, 70°C and 80°C.  The rehydration weight of noodles decreased with the increase in drying temperature.  Moisture transfer from noodles was described by applying Fick’s diffusion model and the effective moisture diffusivity was calculated.  Effective moisture diffusivity increased with increase in temperature.  An Arrhenius relation with activation energy of 38.53 kJ...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Noodle; Taro; Dehydration kinetics; Temperature; Moisture.
Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2132
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Cross-scale determinants of palm species distribution Acta Amazonica
Salm,Rodolfo; Salles,Nilson Vicente de; Alonso,Wladimir J.; Schuck-Paim,Cynthia.
We investigate palm species distribution, richness and abundance along the Mokoti, a seasonally-dry river of southeastern Amazon and compare it to the patterns observed at a large scale, comprising the entire Brazilian territory. A total of 694 palms belonging to 10 species were sampled at the Mokoti River basin. Although the species showed diverse distribution patterns, we found that local palm abundance, richness and tree basal area were significantly higher from the hills to the bottomlands of the study region, revealing a positive association of these measures with moisture. The analyses at the larger spatial scale also showed a strong influence of vapor pressure (a measure of moisture content of the air, in turn modulated by temperature) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Diversity; Moisture; Palms; Tropical forests.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672007000100002
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Dégradation de matériaux composites dans un environment marin: Nouveaux materiaux et methodes d'essais ArchiMer
Pomies, F; Carlsson, L; Choqueuse, Dominique; Davies, Peter.
The change in composite material properties when these are exposed to a marine environment is of considerable importance to both designers and users of these materials. In this paper new materials are first studied, composites composed of a glass fibre reinforced thermoplastic PPS matrix. It is shown that their poor interfacial resistance to moisture ingress compromises severely the advantage of using a matrix which does not absorb moisture. In the second part of the paper the application of two non-destructive test techniques for following damage development, based on ultrasonic wave propagation and vibration (modal) analysis, are described. These are complemented by first results from a study using fracture mechanics tests to characterise delamination...
Tipo: Text Palavras-chave: Fractures; Vibration; Epoxy resins; Tests; Materials testing; Mechanical properties; Ultrasonics; Moisture; Ship technology; Composite materials; Mécanique de la rupture; Vibration; Ultrasonique; Thermoplastique; Epoxyde; Humidité.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/acte-1064.pdf
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Design, fabrication and evaluation of horizontal rotary separator of olive oil (Three-Phase Decanter) CIGR Journal
Rashvand, Mahdi; Akbarnia, Abbas.
Olive is one of the strategic products in Iran, and due to the significant cultivation area of this product, oil companies should be equipped with suitable processing equipment. Unfortunately, despite the high capacity of olive in Iran, oil companies are equipped with imported machines. In this study, the construction and evaluation of the Three-counter device of Iran has been developed. The machine has three oil, water and olive pulp outputs. In order to evaluate the machine, the amount of moisture content and fat extracted from the machine was checked at 2500 and 3500 rpm and 30 and 45% water content. Also, four different samples Manzallina, Fishemi, Kalamata and Oily were used in this experiment. The main components of the machine include an electric...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Olive; Oil; Water; Pulp; Moisture; Fat.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5344
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Determination of Moisture Levels, Protein and Water Absorption of Chicken Giblets Rev. Bras. Ciênc. Avic.
Scaratti,D; Geremias,R; Franchin,PR; Scaratti,G.
Abstract This study aimed at evaluating the levels of moisture, protein, water to protein ratio, and water absorption during chilling of chicken giblets (heart, liver, and gizzard) to set legal limits of water absorption during this process. The survey was conducted in the southern Brazil, the largest broiler-producing region of this country. Giblets (heart, liver, and gizzard) were collected fresh from the processing line after evisceration and at the exit of the chiller after the immersion process from two processing plants. One of the plants (PP1) processes small chickens (1,100g live weight) and PP2 processes chickens with 2,800g live weight. In total, 448 samples were collected. Laboratory tests were performed in duplicate for each parameter measured....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chicken giblets; Chiller; Moisture; Protein; Water absorption.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000100193
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Determination of viscoelastic properties of dates (Mazafati Variety) CIGR Journal
kamgar, saadat; Zare, Dariush; Ebadi, Hossein; Ghofrani, Aliakbar.
The knowledge of rheological properties of agricultural fruits can be significantlyhelpful in design and fabrication of the appropriateprocessing machines .In this study, the viscoelastic characteristics of date (Mazafati variety) were investigated. Experimental tests were established in six moisture levels (7.5, 9.0, 10.8, 12.8, 17.59 and 25.5 on dry basis) and temperature of 45ºC which contributed to obtain a suitable model. To achieve the desired moisture levels, various saturated salts were used. A chamber capable of controlling temperature was fabricated and placed around the plunger of texture analyzer to monitor the temperature during the experiments. Tests were conducted using an Instron Universal Testing Machine in the way that, samples were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biosystem engineering; Food process Viscoelastic properties; Mazafati; Date; Creep test; Moisture.
Ano: 2017 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3812
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Dropping potatoes onto a hard surface floor increases their moisture content during storage OAK
HIRONAKA, Kazunori; ISHIBASHI, Ken-ichi; SATO, Hiroshi; IMURA, Tetsuya; TERAI, Hideki; KUMASE, Noboru; 弘中, 和憲; 石橋, 憲一; 佐藤, 博志; 井村, 哲也; 寺井, 英樹; 熊瀬, 登.
http://www.obihiro.ac.jp/~library/kenkyu.html
Palavras-chave: Potato tubers; Drop height; Moisture; Storage.
Ano: 1995 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3799
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Efeito das condições de colheita, pré-processamento e armazenamento na qualidade do milho-pipoca. Repositório Alice
RUFFATO, S.; CORREA, P.C.; MARTINS, J.H.; MANTOVANI, B.H.M.; SILVA, J.N. da..
Com o objetivo de identificar parametros de decrescimos de qualidade de milho-pipoca, foram avaliados os efeitos dos metodos de colheita e debulha de graos, dos teores de umidade inicial, da temperatura do ar de secagem e do tempo de armazenamento sobre a capacidade de expansao das cultivares Zelia e CMS 43. A colheita foi realizada quando ambas as cultivares de milho-pipoca atingiram o teor de umidade de 19% b.u e, posteriormente, 15% b.u. Foram utilizadas a colheita e debulha manuais e a colheita mecanica com diferentes velocidades do cilindro debulhador. O produto foi submetido a secagem artificial em camada fina. Periodicamente, realizou-se o teste-padrao de qualidade relativo a capacidade de expansao do milho-pipoca. A qualidade do grao foi afetada...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Milho pipoca; Armazenamento; Qualidade; Grao; Umidade; Temperatura; Secagem; Zea mays; Popcorn; Quality; Grain; Moisture; Temperature; Drying; Storage.
Ano: 2000 URL: http://www.alice.cnptia.embrapa.br/handle/doc/483728
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Efeito de diferentes tensoes de umidade do solo sobre a cultura da cenoura (Daucus carota L.), em fase de desenvolvimento ativo do sistema radicular. Repositório Alice
SILVA, W. L. C.; VIEIRA, J. V.; CARRIJO, O. A..
bitstream/item/178090/1/digitalizar0075.pdf
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Brasilia; Distrito Federal; Brasil; Carrot; Moisture; Cenoura; Cerrado; Daucus Carota; Irrigação; Sistema Radicular; Umidade do Solo; Brazil; Irrigation; Root systems.
Ano: 1980 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/768823
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