天然产物研究与开发2012，Vol.24Issue(4)：450-453,459,5.
低聚壳聚糖与α-丙氨酸/天冬酰胺的美拉德反应及其衍生物的抗氧化性能研究
Maillard Reaction of Chitosan Oligosaccharide and α-Alanine /Asparagine and Antioxidant Acticity of Their Derivatives
摘要
Abstract
Two kinds of the chitosan oligosaccharide derivatives were prepared through Maillard reaction by heating chi-tosan oligosaccharide and a-alanine / asparagine (the ratio of carbonyl group and amino group was 1:1). The pH, absor-bance and fluorescence were determined during the reaction. The chitosan oligosaccharide derivatives were characterized by FITR and their molecular weight was termined by CPC. Their antioxidant activity was investigated by employing various established in vitro systems,such as superoxide,l,l-diphenyl-2-picrylhydrazyl (DPPH) radicals scavenging and reducing power. The results showed the chitosan oligosaccharide derivatives had strong antioxidant activity compared to chitosan oligosaccharide. The antioxidant activity was found to be in the order of CA > CN > COS. The results indicated that the derivatives prepared by chitosan oligosaccharide and a-alanine had better antioxidant activity than that prepared by chitosan oligosaccharide and asparagine.关键词
低聚壳聚糖/α-丙氨酸/天冬酰胺/美拉德反应/抗氧化性能Key words
chitosan oligosaccharide/α-alanine/asparagbes/MaiUard reaction/antioxidant activity分类
医药卫生引用本文复制引用
孙涛,朱云,谢晶,薛斌,毛芳..低聚壳聚糖与α-丙氨酸/天冬酰胺的美拉德反应及其衍生物的抗氧化性能研究[J].天然产物研究与开发,2012,24(4):450-453,459,5.基金项目
"十二五"国家支撑计划(2011BAD24B02) （2011BAD24B02）
上海市教委重点学科建设项目(J50704) （J50704）
