食品科学 ›› 1999, Vol. 20 ›› Issue (8): 64-66.

• 营养卫生 • 上一篇    下一篇

荷叶中抑菌成分的提取及其抑菌活性的研究

纪丽莲   

  1. 江苏省淮阴工业专科学校
  • 出版日期:1999-08-15 发布日期:2011-12-05

 JI  Li-Lian   

  • Online:1999-08-15 Published:2011-12-05

摘要: 以乙醇溶液对荷叶进行抽提试验,得到了荷叶提取物;用荷叶提取物对几种常见的食品微生物进行抑菌活性测定,结果表明,荷叶的抑菌作用显著,且对大多数供试菌的MIC(最低抑菌浓度)值小于或等于8%。[实验结果同时表明了荷叶提取物在中、弱碱性条件下抑菌活性最强,并能耐受高温短时及超高温瞬时的热处理。

关键词: 荷叶, 抑菌活性

Abstract: Antimicrobial activities of lotus leaves extracts with ethanol against food spoilage and fook-borne pathogens were tested for the first time.Ethanol (80%) was ascertained to be the optimum solvent for extraction which permitted the maximum yield and the highest antimicrobial activity.The MICs of lotus leaves extracts were of the same value as or less than 8.0% against most of the tested microorganisms. Influences of medium pH values on the activities of lotus leaves extracts were examined.The dependence of the activity on heating conditions was shown as well.

Key words: Lotus leaves, Antimicrobial activity