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Food chemistry

Milk protein isolate (MPI) as a source of dipeptidyl peptidase IV (DPP-IV) inhibitory peptides.


PMID 28449998

Abstract

A multifactorial [temperature (40, 50 and 60°C), hydrolysis time (60, 150 and 240min) and enzyme to substrate ratio (E:S; 1.0, 1.5 and 2.0%)] design of experiments (DOE) was used to optimise the release of dipeptidyl peptidase IV (DPP-IV) inhibitory peptides during hydrolysis of bovine milk protein isolate (MPI) with Neutrase 0.8L™, yielding 15 hydrolysates (H1-H15). Variation in temperature and time had a significant effect on DPP-IV inhibitory properties (p<0.05) in contrast with E:S (p>0.05). The DPP-IV half maximal inhibitory concentration (IC

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