戊糖片球菌P36胞外多糖体外抗氧化能力的研究

Study on the Antioxidant Capacity of Exopolysaccharide of Pediococcus Pentosaceus P36 in Vitro

本研究主要从清除DPPH自由基的能力,清除超氧阴离子自由基功能、清除羟自由基和清除ABTS自由基的能力测试来评价戊糖片球菌P36胞外多糖的体外抗氧化功能。结果表明,随着胞外多糖浓度的升高,其抗氧化能力也随之增加,其中DPPH自由基的清除率最高可达到30%以上。此结果为戊糖片球菌P36胞外多糖的应用奠定了理论基础。

Inspected the capability of antioxidation from Pediococcus Pentosaceus P36 of exopolysaccharide in vitro,though four kinds of methods were applied including DPPH and the ability of scavenging hydroxyl radical,superoxide radical and ABTS radical cation scavenging activity.The results showed that the antioxidant activities increased with increase in its concentration.Especially DPPH-free radical scavenging rate can reach more than30%.This result laid the foundation for the application of exopolysaccharide of Pediococcus Pentosaceus P36.