28 research outputs found
Estudo dos métodos de extração de carotenóides em cenoura por fluido supercrítico (efs) e convencional
Full text linkThe dissolved organic matter as a potential soil quality indicator in arable soils of Hungary
Full text linkAutomated Determination Of Tryptophan In Legumes And Cereals
No full textFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)An automated procedure for tryptophan determination in full-fat legumes and cereals was developed that included a modification of the p-dimethylaminobenzaldehyde (DAB) reaction. Minimal sample preparation was required. Samples were either hydrolyzed in 5 N KOH for 3 h for accurate determination or homogenized for 30 s for direct screening (25 samples/h). Reactants entered the manifold as follows: 0.16 ml/min sample (0.7-2 mg of protein/ml, 1 M KCl, pH 6 ± 0.5), 0.43 ml/min DAB reagent (0.154 M p-dimethylaminobenzaldehyde, 3 N HCl, 14 N H2SO4), and 0.32 ml/min dioxane reagent (p-dioxane-n-butyric acid-water, 2:2:1) 60 s later. Color absorbance (570 nm) was read 100 s after addition of dioxane. Values (coefficient of variation 5-10%) for casein, peanut flour, whole peanuts, soybean, wheat, oats, and sorghum agreed closely with those reported in the literature.251139143FAPESP; São Paulo Research FoundationFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP
Metabolism of Amino Acids in Aquatic Animals II : The effect of an amino acid supplemented casein diet on the growth rate of carp
No full textMetabolism of Amino Acids in Aquatic Animals I : The effect of the addition of phosphate salts, indigestible materials and algae to the diets of carp and the relationship of intestinal retention time to their growth rate
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