Protein hydrolysis to peptides and free amino acids and the apparent absorption of amino acids (AAaa) were evaluated in different segments of carp intestine. The AAaa analysed using Cr2O3 as a marker indicated that 73.2% of the amino acids were absorbed in the first 20% of the intestinal tract and 5.3 and 21.5, respectively, in the following segments (20% of gut length). Except for methionine a...

The transport of free amino acids into cells is the first step in protein synthesis, and, therefore, an essential part of growth. Hormones that increase protein synthesis and growth over a period of time can do so only if increased supplies of free amino acids are made available inside the cells. This increased supply may occur (a) through an increased formation of amino acids within the cells;...

The transport of free amino acids into cells is the first step in protein synthesis, and, therefore, an essential part of growth. Hormones that increase protein synthesis and growth over a period of time can do so only if increased supplies of free amino acids are made available inside the cells. This increased supply may occur (a) through an increased formation of amino acids within the cells;...

Experiments were conducted to compare endogenous amino acid losses and the true amino acid availability (TAAA) of 3 feedstuffs by using methods involving a short-term fasting and an N-free diet with cecectomized ganders. Diets were formulated to contain soybean meal, fish meal, and cottonseed meal as the sole source of protein. A precision-fed assay was used in which each feed sample was precis...

a simple and efficient one-pot, three-component strecker reaction of protected amino acids, aromatic aldehydes, and trimethylsilyl cyanide has been developed for the synthesis of chiral α-amino nitriles. the reaction was carried out in the presence of catalytic amount of phosphotungstic acid (h3[p(w3o10)4]) as an environmentally friendly catalyst.