化学
吸附
激进的
高效液相色谱法
假交替单胞菌
发酵
食品科学
壳聚糖
化妆品
半乳糖
色谱法
多糖
生物化学
有机化学
16S核糖体RNA
基因
作者
Lujiang Hao,Wenlin Liu,Kai Liu,Kai Shan,Chenxiang Xi,Jinfeng Liu,Qiuping Fan,Xiaofei Zhang,Xiaoping Lü,Yanrui Xu,Ruiwen Cao,Yi‐Long Ma,Lan Zheng,Bo Cui
出处
期刊:Marine Drugs
[MDPI AG]
日期:2019-12-13
卷期号:17 (12): 703-703
被引量:17
摘要
In recent years, the wide application of exopolysaccharides (EPSs) in food, cosmetics, medicine, and other fields has drawn tremendous attention. In this study, an EPS produced by Pseudoalteromonas agarivorans Hao 2018 was isolated and purified, and its fermentation conditions were optimized. Its structure and biological functions were also studied. The purity and molecular weight of EPS were determined by high performance liquid chromatography (HPLC), and the EPS exhibited a number average of 2.26 × 105 and a weight average of 2.84 × 105. EPS has good adsorption for Cu2+ and Pb2+. The adsorption rates can reach up to 69.79% and 82.46%, respectively. The hygroscopic property of EPS was higher than that of chitosan, but slightly lower than that of sodium hyaluronate. However, the water-retaining activity of EPS was similar to that of chitosan and sodium hyaluronate. EPS has strong ability to scavenge free radicals, including OH radical and O2- radical. Further, its activity on O2- radicals has similarities with that of vitamin C. EPS has broad application prospects in many fields, such as cosmetics, environmental protection.
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