摘要
以榆耳为原料,提取榆耳中蛋白质,NH4Cl盐析,胰凝乳蛋白酶水解,羧肽酶去除芳香族氨基酸,收集10.6ku^2.0ku超滤膜截留范围的低聚肽,测其氨基酸组成及F值。结果表明,榆耳低聚肽的F值为22.67,支链氨基酸组成为是缬氨酸、亮氨酸和异亮氨酸,含量为34.8%。
Taking Gloeostereum incamatum as raw material,by the method of protein extraction,NH4Cl salting out,chymotrypsin hydrolysis,aromatic amino acid removal by carboxypeptidase,oligopeptide intercepted by the ultrafiltration membrane range of 10.6ku～2.0ku was collected.The composition of amino acid and the F value of the oligopeptide were analyzed.The result showed that the F value of G.incamatum was 22.67,the branched chain amino acids were valine,leucine and isoleucine,with the content of 34.8％.
出处
《中国酿造》
CAS
2013年第12期35-37,共3页
China Brewing
基金
吉林省教育厅"十二五"科学技术研究(吉教科合字[2014]第377号)
关键词
榆耳
F值
低聚肽
G.incamatum
F value
oligopeptide
