降胆固醇植物乳杆菌的紫外诱变选育

Ultraviolet Mutation Screening of Cholesteroldegrading Lactobacillus plantarum

摘要:

通过对植物乳杆菌进行紫外线诱变处理, 采用胆固醇梯度平板的初筛方法和体外降胆固醇能力的测试, 结果得到二株降胆固醇能力强且性能比较稳定的植物乳杆菌突变菌株Lp-UVs 29和Lp-UVs 44, 胆固醇的降解率分别为48.7%和44.2%, 分别比诱变前提高了97.97%和79.67%。

Abstract:

Lactobacillus plantarum was treated with UV, the exhibited good stability obtained by a screening to tow mutants with cholesterol gradient plate and Cholesterol-degrading testing in vitro. Among which the rate of Cholesterol-degrading of Lp-UVs 29 and Lp-UVs 44 are respective 48.7% and 44.2%, which raise respectively by 97.97% and 79.67%.