食品工业科技Issue(11)：68-71,4.
海洋假单胞菌pf-6胞外多糖吸湿保湿和抗氧化性研究
Hygroscopicity,moisture retention and antioxidation of the exopolysaccharide from a marine pseudomonas pf-6
摘要
Abstract
The exopolysaccharide（EPS）was extracted from a marine pseudomonas pf-6 by means of liquid fermentation,and its hygroscopicity,moisture retention and antioxidation were studied.Research results showed that the EPS had good hygroscopicity and moisture retention.The hygroscopic effect of EPS was better than xanthan gum and oligosaccharides in the environment of RH=43% and RH=81%,The moisturizing effect of EPS was slightly lower than xanthan gum but better than oligosaccharides in the environment of RH=43% and silica gel.The EPS had some reducing power and the scavenging action on DPPH·,especially had strong scavenging action on ·OH and O-2· compared with VC.The scavenging activity to ·OH and O-2· was represented by the content scavenged 50% of all radicals（IC50）.The IC50 of VC were 0.617mg/mL and 0.147mg/mL to ·OH and O-2· respectively.The IC50 of the EPS were 0.341mg/mL and 0.149mg/mL under the same condition.It laid a foundation for the further research and exploitation of antioxidative microbial polysaccharides.关键词
假单胞菌/胞外多糖/吸湿性/保湿性/抗氧化Key words
pseudomonas/exopolysaccharide/hygroscopicity/moisture retention/antioxidation分类
生物科学引用本文复制引用
刘凤,叶淑红,王际辉,王晗,王阳..海洋假单胞菌pf-6胞外多糖吸湿保湿和抗氧化性研究[J].食品工业科技,2011,(11):68-71,4.基金项目
国家农转资金 （）
辽宁省科技攻关计划 （）
大连市科技攻关计划 （）
