Study on Antimicrobial Action of Extract of Astragalus membranceus Bge

Abstract

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)；

YAO Shu-Min, CHI Zhen-Ming, DUAN Xiao-Hui. Study on Antimicrobial Action of Extract of Astragalus membranceus Bge[J]. FOOD SCIENCE, 2006, 27(8): 90-93.

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Study on Antimicrobial Action of Extract of Astragalus membranceus Bge

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