Chusri S, Voravuthikunchai S P
Department of Microbiology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
Phytother Res. 2008 Apr;22(4):560-2. doi: 10.1002/ptr.2377.
Acetone, ethyl acetate, 95% ethanol and aqueous extracts of Quercus infectoria (Q. infectoria) demonstrated significant antibacterial activities against all strains of methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-susceptible Staphylococcus aureus (MSSA). Inhibition zones were in the range 11.75-16.82 mm. Both MRSA and MSSA strains exhibited minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values at 0.13 and 0.13-1.00 mg/mL, respectively. At 2 MIC, the growth of two representative MRSA strains was continually inhibited for at least 20 h. Surviving MRSA cells were not detected within 12-14 h after treatment with the extract at 4 MIC concentration. Staphylococcus aureus ATCC 25923 demonstrated similar results.
丙酮、乙酸乙酯、95%乙醇以及没食子（Quercus infectoria）水提取物对所有耐甲氧西林金黄色葡萄球菌（MRSA）菌株和甲氧西林敏感金黄色葡萄球菌（MSSA）菌株均表现出显著的抗菌活性。抑菌圈范围为11.75 - 16.82毫米。MRSA和MSSA菌株的最低抑菌浓度（MIC）和最低杀菌浓度（MBC）值分别为0.13和0.13 - 1.00毫克/毫升。在2倍MIC浓度下，两种代表性MRSA菌株的生长至少持续被抑制20小时。在4倍MIC浓度的提取物处理后12 - 14小时内未检测到存活的MRSA细胞。金黄色葡萄球菌ATCC 25923也显示出类似结果。
