Method for preparing active peptides from corn germ proteins
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United States of America Patent
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Jan 27, 2015
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May 14, 2013
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May 17, 2011
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Abstract
The present invention discloses a method for producing antihypertensive active peptides with corn germ protein as the material. The method comprises an alkali-heat treatment and continuous enzymolysis of the corn germ protein. The components with molecular weight less than 1000 Da in the active peptides obtained according to the present method account for more than 92%, and alanine-tyrosine (Ala-Tyr, AY) as the characteristic peptide fragments in the antihypertensive peptides accounts for more than 0.6%, so that the active peptides have a good ACE inhibitory activity in vitro as well as stability against temperature, pH and major gastrointestinal digestive enzymes, and have a significant effect of lowering blood pressure on spontaneous hypertension rats in vivo. The active peptides can be applied as a new functional nutrient to development and production of food, health food and pharmaceutical.
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