Artigos científicos, teses e dissertações
Publicados nas melhores instituições de ensino

Utilização do grão tostado de soja (Glicine max (L) Merril) na alimentação de vacas em lactação / Roasted soybeans (glycine max. (l) merril) for lactating dairy cows

Soybeans were roasted in an experimental roaster during 2 or 3 minutes either at 380 or 490 ºC air temperature and kept or not for 30 minutes under steeping. The heat treatment effects on soybeans were evaluated in a first trial through two different procedures: a) after 16 hours...

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Polyamines in Soybeans 1

Putrescine, spermidine, and spermine were three main polyamines isolated from soybeans and partially characterized. Occurrence of polyamines in soybeans was established by separating trichloroacetic acid extracts of soybeans by cationic exchange column chromatography, identificat...

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Antioxidant action in diets with ground soybeans on ruminal microbial production, digestion, and fermentation in buffaloes

ABSTRACT The objective of this study was to evaluate the effect of adding ground soybeans and antioxidants to diet of buffaloes on intake, ruminal microbial production, total and ruminal digestibility of nutrients, and ruminal fermentation parameters. Four crossbred buffaloes wit...

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Production of Aflatoxin on Soybeans

Probable factors influencing resistance to aflatoxin synthesis in soybeans have been investigated by using cultures of Aspergillus parasiticus NRRL 3240. Soybeans contain a small amount of zinc (0.01 μg/g) bound to phytic acid. Autoclaving soybeans at 15 pounds (6803.88 g) for 15...

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Evaluation of Sclerotinia sclerotiorum as a potential mycotoxin producer on soybeans.

Solvent extracts of Sclerotinia sclerotiorum sclerotia were nontoxic to mice and chicken embryos; psoralens were not detected. Solvent extracts of soybeans inoculated with 10 strains of S. sclerotiorum were toxic on injection but nontoxic on per os administration to mice. The pre...

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Mudanças e impactos na coordenação do sistema agroindustrial da soja na região centro-oeste brasileira em decorrência do advento e da difusão da soja transgênica / Changes and impacts on the coordination of soybean agrindustrial system in Brasilian center west region due to the advent and dissemination of transgenic soybeans

This work seeks to understand the changes in the coordination of soybeans agroindustrial system in the region of Rio Verde - GO, as well as the impacts to the segments and agents of the soybeans chain, due to the advent and spread of transgenic soybeans. The objectives of the ana...

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Obtention and application of isoflavone standards from soybeans / Obtenção e aplicação de padrões de isoflavonas de soja

The use of analytical standards in chromatographic analyses is very important to get trustworthy analytical results for validation of methodologies and for routine analyses. However, the cost of the available reference standards is high, prejudicing the overall analytical process...

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Rice-Grown Rhizopus oligosporus Inoculum for Tempeh Fermentation

A method of growing Rhizopus oligosporus on cooked rice as the inoculum for the fermentation of soybeans into tempeh was described and evaluated. Isolated R. oligosporus spores on glass beads survived best at low temperature and intermediate humidity. The activity of the rice-gro...

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Use of different forms of soybeans in dairy cows feeding / Utilização da soja em diferentes formas na alimentação de vacas leiteiras

The research was carried out to evaluate the in situ ruminal degradation and the intestinal digestibility of raw and roasted soybeans and the effect of diets containing different forms of soybeans on the consumption, nutrient digestibility, production and milk composition, variat...

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Statistical methods to study adaptability and stability in breeding lines of food-type soybeans

ABSTRACT The grains of food-type soybean cultivars, which are characterized by the absence of lipoxygenases and the presence of high levels of proteins and isoflavones, are regarded as functional foods with high acceptance by consumers. However, few cultivars of food-type soybean...

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Evaluation of protein and metalloprotein changes in soybean seed after genetic modification process / Avaliação das alterações proteicas e metaloproteicas em soja apos o processo de modificação genetica

This research work consisted of comparison of two kinds of soybeans [Glycine max (L.) Merrill], transgenic and non-transgenic, using proteomics and metalloproteomics changes. Firstly, soybeans proteins were extracted with an extraction buffer containing Tris-HCI (pH 8.8), KCI, DT...

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First record of Peridroma saucia Hübner (Lepidoptera: Noctuidae) in transgenic soybeans

ABSTRACT The widespread cultivation of transgenic soybeans has caused significant changes in the spectrum of Lepidoptera larvae, both in the number of species as well as on their densities in the field. Transgenic crops producing Bacillus thuringiensis (Bt) insecticidal proteins ...

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Contribuição ao estudo da extração e concentração do leite de soja

Extraction and concentration of soy milk was studied by means of the following sequence of operations: soaking, enzymatic inactivation, grinding, separation of insoluble solids, and concentration in a centrifugal evaporator. The soaking process was performed at 25°C and 60°C in f...

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Agronomic performance of soybeans with the presence of volunteer RR corn

ABSTRACT The presence of volunteer corn plants among soybeans, both resistant to glyphosate, has increased in recent years in Brazil. The objective of this study was to quantify the impact on the agronomic performance in RR soybeans by the presence of volunteer RR corn in field c...

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Production of vitamin B-12 in tempeh, a fermented soybean food.

Several varieties of soybeans contained generally less than 1 ng of vitamin B-12 per g. It was found that use of a lactic fermentation typical of tropical conditions during the initial soaking of the soybeans did not influence the vitamin B-12 content of the resulting tempeh. Pur...

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Effect of Light, Dark, and Temperature on Root Nodule Activity (Acetylene Reduction) of Soybeans

The objectives of this study were (a): to define the effects of light, dark, and temperature on nodule activity (acetylene reduction), and (b) to establish the contributions of reserve carbohydrate and recent photosynthate to the support of nodule function. An in situ assay of no...

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Evaluation of the Relative Ureide Content of Xylem Sap as an Indicator of N2 Fixation in Soybeans: GREENHOUSE STUDIES 1

The use of the relative ureide content of xylem sap [(ureide-N/total N) × 100] as an indicator of N2 fixation in soybeans (Merr.) was examined under greenhouse conditions. Acetylene treatments to inhibit N2 fixation were imposed upon the root systems of plants totally dependent u...

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Effect of Iron on the Transport of Citrate into the Xylem of Soybeans and Tomatoes

Iron transport in soybeans (Glycine max [L] Merr.) and tomatoes (Lycopersicum esculentum) is controlled by factors that are altered manyfold as the plant experiences an iron stress (deficiency). Depending on their response to an Fe stress, plants in this study are classed (a) Fe-...

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Diallel analysis for grain yield and mineral absorption rate os soybeans grown in acid brazilian Savannah soil.

High available aluminium and low levels of calcium below the ploughed zone of the soil are limiting factors for agricultural sustainability in the Brazilian Cerrados (Savannahs). The mineral stresses compound with dry spells effect by preventing deep root growth of cultivated pla...

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Quantification of anti-nutritional factors and their correlations with protein and oil in soybeans

ABSTRACT Soybeans contain about 30% carbohydrate, mainly consisting of non-starch polysaccharides (NSP) and oligosaccharides. NSP are not hydrolyzed in the gastrointestinal tract of monogastric animals. These NSP negatively affect the development of these animals, especially the ...

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Occurrence of Aflatoxins and Aflatoxin-Producing Strains of Aspergillus spp. in Soybeans 1

Above average rainfall in Maryland during August, September, and October 1971 resulted in heavy mold growth in soybeans while still in the field. Of 28 samples of soybean seed, aflatoxins were found in 14, 2 of which had been used in poultry feed. Aflatoxins were identified by th...

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