食品科学 ›› 2006, Vol. 27 ›› Issue (8): 90-93.

• 基础研究 • 上一篇    下一篇

黄芪提取物对细菌抑制作用的研究

 姚淑敏, 池振明, 段效辉   

  1. 中国海洋大学海洋生命学院;曲阜师范大学生命科学学院
  • 出版日期:2006-08-15 发布日期:2011-10-14

Study on Antimicrobial Action of Extract of Astragalus membranceus Bge

 YAO  Shu-Min, CHI  Zhen-Ming, DUAN  Xiao-Hui   

  1. 1.College of Ocean Life Science,Ocean University of China,Qingdao 266003,China;2.College of Life Science,Qufu Normal University,Qufu 273165,China
  • Online:2006-08-15 Published:2011-10-14

摘要: 本文以黄芪作为研究对象,利用制得的黄芪提取物对多种细菌进行了抑菌活性实验,结果表明:黄芪提取物抑菌作用因菌种不同而最低抑菌浓度有所不同,大肠杆菌为7.5%、产气杆菌为8%、变形杆菌为4.5%、金黄色葡萄球菌为9.5%、沙门氏菌10%,其抑菌直径分别为:大肠杆菌8.6mm、产气杆菌8.1mm、变形杆菌8.2mm、金黄色葡萄球菌7.7mm、沙门氏菌8.4mm,表明对常见细菌有较好的抑制作用,其抑菌效果与时间有一定关系,在121℃湿热条件下20min后黄芪提取物抑菌效果基本不变,说明制得的黄芪提取物具有良好的热稳定性。此外,黄芪提取物抑菌浓度与时间有关。

关键词: 黄芪提取物, 抑菌作用, 最低抑菌浓度

Abstract: The antimicrobial action of EAMB(extract of Astragalus membranceus Bge)against a series of bacterium was studied.The results showed that the antimicrobial effect of EAMB varies with the pathogenetic microbes.The antimlicrobial minimum dosage of EAMB are as follows:Escherichia coli 7.5%,Arbiter aerogenes 8%,Proteus vulgaris 4.5%,Staphylocccus aureus 9.5% and Salmonlla sp.10%.The antimicrobial diameters of EAMB are respectively as follows:Eschericlina coli 8.6mm,Aerobcater aerogenes 8.1mm,Proteus vulgaris 8.2mm,Staphylococcus aureus 7.7mm and Salmonlla sp.8.4mm.The resultsshowed that the EAMB can effectively inhibit the growth of bacterium.When the concentration is the same,the longer the reaction period,the higher is the antimicrobial effect of the extract.And this extract is characterised by its heat stability.

Key words:  , EAMB; antimicrobial action; MIC(minimum inhibitory concentration);