降解胆固醇乳酸菌的筛选及中草药与乳酸菌的协同作用

食品科学 ›› 2013, Vol. 34 ›› Issue (1): 210-214.

降解胆固醇乳酸菌的筛选及中草药与乳酸菌的协同作用

王瑞君

宜春学院化学与生物工程学院，江西省天然药物活性成分研究重点实验室

收稿日期:2011-10-26 修回日期:2012-12-11 出版日期:2013-01-15 发布日期:2013-01-07
通讯作者: 王瑞君 E-mail:wruijun@163.com
基金资助:
江西宜春市科技局

Screening of Cholesterol-Lowering Lactic Acid Bacteria and Synergic Effect with Chinese Herbal Medicines

Received:2011-10-26 Revised:2012-12-11 Online:2013-01-15 Published:2013-01-07
Supported by:
Yichun Municipal Science and Technology Bureau

摘要/Abstract

摘要： 从酸菜与酸奶中筛选具有降解胆固醇功能的乳酸菌。通过对低pH值耐受性、胆盐耐受性、拮抗条件致病微生物的特性，研究其潜在的益生功能。结果显示，筛选到8株降解胆固醇的乳酸菌，LAB4菌株具有较好的耐受胆盐与低pH值的特性，8株菌株对金黄色葡萄球菌和大肠埃希氏菌均有拮抗作用。同时研究了LAB4菌株与中草药协同降解胆固醇的作用，结果表明，0.0125%的甘草、0.025%的枸杞或黄芪与LAB4菌株具有协同降解胆固醇的功能。

关键词: 乳酸菌, 胆固醇, 中草药

Abstract: Eight cholesterol-lowering lactic acid bacteria (LAB 1 through 8) isolated from pickles and yogurt were evaluated for probiotic potential based on their tolerance to low pH and bile salt and antagonistic activity against Staphylococcus aureus and Escherichia coli. Strain LAB 4 had excellent tolerance to low pH and bile salt and all 8 LAB strains had antagonistic activity against Staphylococcus aureus and Escherichia coli. Moreover, strain LAB 4 had synergic cholesterol-lowering effect with 0.0125% licorice root extract, 0.025% Chinese wolfberry extract or 0.025% milkvetch root extract.

Key words: lactic acid bacteria, Chinese herbal medicine, cholesterol

中图分类号:

TS201.3

王瑞君. 降解胆固醇乳酸菌的筛选及中草药与乳酸菌的协同作用[J]. 食品科学, 2013, 34(1): 210-214.

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