2015•Tianran chanwu yanjiu yu kaifaRequires access
Anti-bacterial Activity of Chrysanthemum morifolium Ramat
Le Song
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Abstract
The anti-bacterial effects of crude extracts of flower of Chrysanthemum morifolium Ramat( CMR) on common human intestinal bacteria were investigated in this study. Anti-bacterial activities of ultrasonic extracts of CMR flower were tested by agar diffusion method,and minimal inhibitory concentrations( MIC) were determined by multi-proportion dilution method. The results showed that both aqueous extract and alcohol extract showed high inhibitory effect on 7 common human intestinal bacteria,especially on Proteus vulgaris,Shigella dysenteriae and Salmonella typhi. The anti-bacterial effects of aqueous and alcohol extracts with higher concentration were significantly obvious( P 0. 01) than that of lower concentration,and aqueous extract showed prominent( P 0. 01) anti-bacterial effects than alcohol extract at the same concentration. Furthermore,the MIC of aqueous extract lower than that of alcohol extract for the same bacterium.