Changes in plasma amino acid concentrations in man after ingestion of an amino acid mixture simulating casein, and a tryptic hydrolysate of casein

Content Provider	Scilit
Author	Marrs, T. C. Addison, Jill M. Burston, D. Matthews, D. M.
Copyright Year	1975
Description	1. Plasma amino acid levels have been estimated at 0, 15, 30 and 45 min after ingestion of doses of (1) an amino acid mixture simulating casein and (2) a tryptic hydrolysate of casein consisting mainly of oligopeptides. Both doses contained the same amount of nitrogen.2. After ingestion of both preparations, there was a prompt increase in plasma amino acid levels, followed by a decrease. No such change occurred in fasting subjects. There were no significant differences between increments in plasma amino acid levels after ingestion of the amino acid mixture and the corresponding increments after ingestion of the tryptic hydrolysate.3. Correlations were found between the areas under the curves for individual amino acid concentrations, after ingestion of the two preparations, and the amino acid composition of casein. The results do not suggest that increases in plasma amino acid levels following small doses of protein digestion products are the result of circadian changes, or that such increases are ‘swamped’ by absorption of amino acids from endogenous protein in the lumen of the small intestine.
Related Links	https://www.cambridge.org/core/services/aop-cambridge-core/content/view/4C21D3B410442DD585A7B76B874D8D66/S000711457500030Xa.pdf/div-class-title-changes-in-plasma-amino-acid-concentrations-in-man-after-ingestion-of-an-amino-acid-mixture-simulating-casein-and-a-tryptic-hydrolysate-of-casein-div.pdf http://journals.cambridge.org/article_S000711457500030X
Ending Page	265
Page Count	7
Starting Page	259
ISSN	00071145
e-ISSN	14752662
DOI	10.1017/s000711457500030x
Journal	British Journal Of Nutrition
Issue Number	2
Volume Number	34
Language	English
Publisher	Cambridge University Press (CUP)
Publisher Date	1975-09-01
Access Restriction	Open
Subject Keyword	British Journal Of Nutrition Food Science and Technology Plasma Amino Acid Simulating Casein Tryptic Hydrolysate Mixture Simulating Acid Mixture
Content Type	Text
Resource Type	Article
Subject	Nutrition and Dietetics Medicine