Whey Protein Hydrolysates Enhance Water Absorption In The Perfused Small Intestine Of Anesthetized Rats
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY(2016)
摘要
We evaluated the effect of whey protein hydrolysates (WPH) on the water absorption rate in the small intestine using a rat small intestine perfusion model. The rate was significantly higher with 5g/L WPH than with 5g/L soy protein hydrolysates or physiological saline (p<0.05). WPH dose-dependently increased the water absorption rate in the range of 1.25-10.0g/L. WPH showed a significantly higher rate than an amino acid mixture whose composition was equal to that of WPH (p<0.05). The addition of 4-aminomethylbenzoic acid, an inhibitor of PepT1, significantly suppressed WPH's enhancement of water absorption (p<0.05). The rate of water absorption was significantly correlated with that of peptides/amino acids absorption in WPH (r=0.82, p<0.01). These data suggest that WPH have a high water absorption-promoting effect, to which PepT1 contributes.
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关键词
whey protein hydrolysates, water absorption, amino acid mixture, PepT1
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