Protein Hydrolysate from Brewers Spent Grain and its Inhibitory Ability of α-glucosidase

摘要：

　　Brewers spent grain (BSG) rich in proteins is the main by-products in brewery.BSC proteins were extracted and hydrolyzed by Alcalase.The effects of hydrolysis time,temperature,pH and amount of enzyme added on the peptide yield were investigated.Inhibition of BSG protein hydrolysate against α-glucosidase was evaluated in vitro.BSG protein hydrolysate at 4.0 mg/mL showed the inhibition of 21.42% against α-glucosidase.The BSG protein hydrolysate after ultrafiltration purification exhibited much higher inhibition than that without ultrafiltration purification.The inhibition of BSC protein hydrolysate fraction with molecular weight fraction less than 5 kDa was 56.41%.

关键词： Brewers spent grain α-glucosidase inhibitory activity peptide

作者: Hongjia Lin Lin Li Yingjuan Tian Xia Zhang Bing Li

作者单位: College of Light Industry and Food Sciences, South China Univ.of Technology, Guangzhou, China College of Light Industry and Food Sciences, South China Univ.of Technology, Guangzhou, China;Guangd

会议类型: 国际会议

会议名称: 2012 International Conference on Chemical Engineering,Metallurgical Engineering and Metallic Materials(2012化工、冶金和金属材料国际会议(CMMM2012))

会议地点: 昆明

会议语种:英文

页码: 138-141

在线出版日期: 2012-10-12（万方平台首次上网日期，不代表论文的发表时间）