کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6090593 1589675 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Basic nutritional investigationS-carboxyethylcysteine (a constituent of Acacia seed) negatively affects casein protein utilization by rats
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی غدد درون ریز، دیابت و متابولیسم
پیش نمایش صفحه اول مقاله
Basic nutritional investigationS-carboxyethylcysteine (a constituent of Acacia seed) negatively affects casein protein utilization by rats
چکیده انگلیسی

ObjectiveTwo rat bioassay experiments are reported. The first investigated the first limiting amino acid in Acacia colei and the second experiment investigated the effect of S-carboxyethylcysteine (CEC; a compound present in acacia seed) on protein use.MethodsIn the first experiment, Wistar rats were fed A. colei seed supplemented with three levels of methionine, cysteine, and tryptophan (0.1%, 0.2%, and 0.4%). In the second experiment, the Wistar rats were fed CEC-incorporated casein diets.ResultsSupplementation of A. colei with tryptophan had no significant effect on the protein efficiency ratio, cysteine showed the highest protein efficiency ratio value at the 0.4% level, and the protein efficiency ratio increased significantly with the increase in methionine content, making methionine the first limiting amino acid. The methionine-induced growth rate was suppressed by the incorporation of CEC, which also had a negative effect on the plasma amino acid levels.ConclusionThe results indicated that methionine is the first limiting amino acid in A. colei and that CEC could affect the seed's protein use. Acacia colei seed can be used effectively as famine food only if it is complemented with other cereals known to be rich in sulfur amino acids.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nutrition - Volume 28, Issues 7–8, July–August 2012, Pages 785-792
نویسندگان
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