七种植物精油的抗菌活性及其抑菌成分分析Antimicrobial Activity of Seven Kinds of Plant Essential Oils and Analysis of Their Antimicrobial Components
张林会,邓楠,旷春桃
摘要(Abstract):
芳香植物精油普遍具有良好的抗菌活性,是潜在的天然抗菌剂。文章采用滤纸片法测定了7种植物精油在不同浓度下的抑菌圈直径以及最小抑菌浓度(MIC),然后采用GC-MS分析和确定了4种植物精油的主要抑菌成分。结果表明,山苍子精油(LC-EO)的抗菌活性最好,对大肠杆菌、金黄色葡萄球菌、黑曲霉、根霉的MIC分别为3.13,6.25,1.56,3.13 mg/mL,抑菌成分主要为柠檬醛和柠檬烯;姜黄精油(RCL-EO)、柏木精油(CF-EO)和八角茴香精油(LV-EO)对4种供试菌的MIC均小于12.5 mg/mL,芳姜黄酮、姜黄酮是姜黄精油的抑菌化学成分,柏木精油的抗菌成分是萜类化合物,茴香脑和茴香醛是八角茴香精油的主要抑菌成分;香桂精油(LCS-EO)、杉木精油(CL-EO)和迷迭香精油(RO-EO)的抗菌作用较弱。
关键词(KeyWords): 精油;抗菌活性;抑菌成分;芳香植物
基金项目(Foundation): 十四五国家重点研发计划项目(2017YFD0600704);; 湖南省重点研发计划项目(2015SK20723)
作者(Author): 张林会,邓楠,旷春桃
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