普洱茶提取物对金黄色葡萄球菌的影响
Effect of Pu'er tea extracts on Staphylococcus aureus
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摘要: 为考察不同溶剂普洱茶提取物的抑菌效应,以金黄色葡萄球菌(S.aureus)为供试菌,采用滤纸片扩散法分别探讨普洱茶水提取物、75%乙醇提取物和95%乙醇提取物的抑菌效果、最小抑菌浓度(MIC)和最低杀菌浓度(MBC).研究结果表明:普洱茶提取物浓度在4~20 mg/mL范围内对S.aureus均有较强的抑制效应,且抑制效果与浓度呈正相关.3种提取物中95%乙醇提取物的抑菌效果最佳,其MIC与MBC均为0.63 mg/mL.Abstract: To investigate the inhibition effect of Pu'er tea extract,the Staphylococcus aureus(S.aureus) was used as test bacteria.The inhibition effects of Pu'er tea extract from water,75% ethanol and 95% ethanol on minimal inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were studied by paper diffusion methods.The results indicated that the Pu'er tea extract concentration within the range of 4~20 mg/mL had a strong inhibitory effect against S.aureus and the inhibitory effect increased with the concentration.95% ethanol extract on S.aureus inhibitory effect was more obvious,and both its MIC and MBC were 0.63 mg/mL.
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Key words:
- Pu'er tea extract /
- inhibition zone /
- Staphylococcus aureus(S.aureus)
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