Analysis of Amino Acid and Antioxidant Activity in Chestnut-Rice Sake

In order to explore the nutrition and health value of chestnut-rice sake for further determination,the kinds and content of amino acids that in sake samples were analyzed first.Then,the lipid peroxides inhibition,reduction capacity,metal chelation capacity,total phenol content and DPPH free radical scavenging capacity of chestnut-rice sake were preliminarily researched by comparing with glutinous rice sake and different antioxidants.The results showed that the content of 17 kinds of amino acids in chestnut-rice sake was higher than that in rice sake,among which the content of aspartic acid,threonine,glutamic acid,alanine,valine,isoleucine,leucine,tyrosine and phenylalanine was more than twice that in rice sake.This wine had strong reduction ability and it can inhibit the self-oxidation of linoleic acid by 80.70%,and its metal chelation activity was 11.57%,the DPPH free radical scavenging rate reached 38.67%,and the total phenol content was about 187.1 μg/mL. Chestnut glutinous rice sake had stronger antioxidant properties than glutinous rice sake with the same technology.