Compared with casein or total milk protein, digestion of milk soluble proteins is too rapid to sustain the anabolic postprandial amino acid
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چکیده
Background: The in vivo quality of milk protein fractions has seldom been studied in humans. Objective: Our objective was to compare the postprandial utilization of dietary nitrogen from 3 [N]-labeled milk products: micellar caseins (MC), milk soluble protein isolate (MSPI), and total milk
منابع مشابه
Compared with casein or total milk protein, digestion of milk soluble proteins is too rapid to sustain the anabolic postprandial amino acid requirement.
BACKGROUND The in vivo quality of milk protein fractions has seldom been studied in humans. OBJECTIVE Our objective was to compare the postprandial utilization of dietary nitrogen from 3 [(15)N]-labeled milk products: micellar caseins (MC), milk soluble protein isolate (MSPI), and total milk protein (TMP). DESIGN The macronutrient intakes of 23 healthy volunteers were standardized for 1 wk,...
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REFERENCES 1. Lacroix M, Bos C, Léonil J, et al. Compared with casein or total milk protein, digestion of milk soluble proteins is too rapid to sustain the anabolic postprandial amino acid requirement. Am J Clin Nutr 2006;84: 1070–9. 2. Gaudichon C, Laurent C, Mahe S, Marks L, Tome D, Krempf M. Rate of [N]leucine incorporation and determination of nitrogenous fractions from gastro-jejunal secre...
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A recent study by Lacroix et al (1) compared the postprandial utilization of nitrogen from 3 different proteins, namely micellar casein (“slow protein”), milk soluble protein isolate (“fast protein”), and total milk protein (another “slow protein”). Their data suggest that slow protein induces better postprandial nitrogen utilization than does fast protein. According to Lacroix et al, “This res...
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Calves were fed five different test meals: whole milk, skim milk, 3% whole casein solution, 3% whole casein in simulated milk ultrafiltrate, and whey. The digesta leaving the abomasum before feeding and during the first 7 postprandial hours were collected by fractions. After precipitation with 12% TCA, the amino acid compositions of the sediments and the supernatants were determined and compare...
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