摘要
本研究利用自然沉降法收集空气微生物,采用平板计数法统计植物精油添加前后的空气微生物菌落数,并计算其抑菌率.根据抑菌率筛选出2种精油在其最佳抑菌浓度下进行添加不同体积精油的实验以及进行干扰项测试实验.结果表明,7种植物精油中有5种精油的最佳抑菌率达到70％以上,抑菌作用由强至弱的顺序为:柠檬草、柠檬、野橘、薰衣草、艾叶、薄荷、依兰.根据抑菌作用和筛选出的2种较易获得的植物精油为柠檬草精油和艾叶精油.在干扰项测试中,市售祖马龙香水对2种精油无干扰作用.
Abstract
Aerial microorganisms were collected using the natural precipitation method,and the number of aerial microorganism colonies before and after the addition of essential oils was counted using the plate counting method,and the inhibition rate was calculated.Two essential oils were selected for experiments with different volumes of essential oils added at their optimal antibacterial concentrations as well as for interference term testing experiments.The inhibition rate was used to compare the strength of the antibacterial effect of the 7 essential oils;the microbial concentration was calculated using the average of the number of colonies under the best antibacterial concentration of each essential oil and compared with the air microbial evaluation standard.Results:5 of the 7 essential oils have the best antibacterial rate of 70％or more,and the order of antibacterial effect from strong to weak is:lemongrass,lemon,wild orange,lavender,artemisia,peppermint,ylang-ylang.According to the antibacterial effect and price screening of the 2 plant essential oils for lemongrass essential oil and artemisia essential oil.In the interference item test,the commercially available Jo Malone perfume has no interference effect on the 2 essential oils;the commercially available disinfectant has no interference effect on lemongrass essential oil,but has some interference effect on artemisia essential oil.
基金项目
广西壮族自治区科技计划(桂科AB23075091)
柳州市科技计划(2022DAA0101)
维普
万方数据