三种植物精油抑菌效果的研究

Study on Antimicrobial Activity of the Three Plant Essential Oils

【目的】研究不同浓度的新疆薰衣草、玫瑰和葡萄籽精油对7种供试菌种的抑菌效果。【方法】采用滤纸片扩散法。【结果】不同浓度的薰衣草、玫瑰和葡萄籽精油对7种供试菌种具有一定的抑菌活性。3%的薰衣草和玫瑰精油对供试菌抑菌效果最好,其中3%薰衣草精油对7种供试菌种抑菌5种菌的活性强度为:金黄色葡萄球菌>枯草芽孢杆菌>白色葡萄球菌>植物乳杆菌>大肠杆菌>粪肠球菌>戊糖片球菌,3%玫瑰精油为:粪肠球菌>戊糖片球菌>金黄色葡萄球菌>白色葡萄球菌>植物乳杆菌>大肠杆菌>枯草芽孢杆菌。葡萄籽精油的抑菌效果相对其它两种精油较弱。【结论】薰衣草和玫瑰精油对上述细菌具有较强的抑菌效果,可作为天然抑菌剂。

[Objective] The antibacterial activities of lavender, rose and grape seed plant essential oils with different concentrations are studied in this paper. [ Method]Essential oils antibacterial activities were investigated by disc diffusion assay method. [ Result ] Any concentration of lavender oil and rose oil could inhibit all bacterial species tested in our study, 3 % of lavender oil and rose oil showed the highest antibacterial activity, and activities of grape seed oil were relatively less than those of the others. The antibacterial activity on bacterial species tested in our study of 3 % lavender essential oil were Staphylococcus aureus 〉 Bacillus subtilis 〉 Staphylicoccus albus 〉 LactobaciUus plantarum 〉 Escherichia coli 〉 Enterococcus faecalis 〉 Pediococcus pentosaceus, and 3% of rose oil essential oil were Enterococcus faeealis 〉 Pediococcus pentosaceus 〉 Staphylococcus aureus 〉 Staphylicoccus albus 〉 Lactobacillus plantarum 〉 Escherichia coli 〉 Bacillus subtilis. [ Conclusion]The study proved that 3 % lavender oil and rose oils had strong antibacterial activities to the bacteria mentioned above and they can be used as natural antibacterial agents.