Abstract:

Oxford cup method was used to measure the anti-microbial activities of ethanol extract from Asparagus officinalis peel against Staphylococcu saureus, Eschrichia coli, Bacillus subtilis, Shigella, Salmonella and Penicillium, Mucor and Aspergillus niger. The results indicated that all these microorganisms were effectively inhibited by the extract and the antibacterial activity was much better than the anti-mold activity. The minimum inhibition concentration (MIC) was 1 g/100 mL for Staphylococcu saureus and 5 g/100 mL for other 4 bacterial species. The antibacterial effect was in a concentration-dependent manner. The MICs were 10, 30 g/100 mL and 40 g/100 mL for Penicillium, Mucor, and Aspergillus niger, respectively.

Key words: ethanol extract from Asparagus officinalis peel, Oxford cup method, anti-microbial activity