Protein v. enzymic protein hydrolysates. Nitrogen utilization in starved rats
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منابع مشابه
Liver lysosomes in protein-starved rats.
I . The feeding of a protein-free diet to adult rats trained to consume their whole day’s food in z h changed the characteristics of hepatic lysosomes immediately upon the onset of protein deficiency combined with calorie deficiency. 2. The nature of the alterations in the characteristics of liver lysosomes were deduced from the faster release of enzymes, swelling of membranes and a change in t...
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Peptides ranging in size from a mean number of 30 residues down to dipeptides supported growth of a leucine auxotroph when used as both a nitrogen and leucine source. Under nitrogen-limiting conditions, the peptides induced extracellular peptidohydrolytic activity, hydrolyzing peptides to monomer amino acids. Growth of a leu-2 mutant of Neurospora crassa on those peptides transportable by the o...
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Inbred weanling rats were maintained on diets containing low (6%), medium (lS%), and high (40%) levels of proteins. After 45 days they were killed and the activities of histidine ammonia lyase, urocanase, and histidine pyruvate aminotransferase in liver were assayed. Histidine ammonia lyase increased with age of the rat, and the increase was proportional to the level of protein in the diet. Ani...
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It has been suggested that protein hydrolysates providing mainly di- and tripeptides are superior to intact (whole) proteins and free amino acids in terms of skeletal muscle protein anabolism. This review provides a critical examination of protein hydrolysate studies conducted in healthy humans with special reference to sports nutrition. The effects of protein hydrolysate ingestion on blood ami...
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Incubation of 6-phosphogluconate dehydrogenase from Candida utilis with either acetyl phosphate, 1,3-diphosphoglycerate or carbamoyl phosphate results in the phosphorylation of the protein. The binding of one phosphate residue per enzyme subunit does not affect significantly the kinetic properties, but makes the enzyme less reactive toward thiol reagents, trypsin and pyridoxal 5'-phosphate. We ...
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ژورنال
عنوان ژورنال: British Journal of Nutrition
سال: 1995
ISSN: 0007-1145,1475-2662
DOI: 10.1079/bjn19950009