天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (3): 377-381.doi: 10.16333/j.1001-6880.2016.3.010

• 研究简报 • 上一篇    下一篇

绒毛香茶菜精油化学成分的GC-MS分析及其抑菌活性鉴定

赵小珍1,李晨2,崔晓东2,王转花2*   

  1. 1 山西省分析科学研究院;2 化学生物学与分子工程教育部重点实验室 山西大学生物技术研究所,太原 030006
  • 出版日期:2016-03-30 发布日期:2016-04-07

Chemical Composition and Antimicrobial Activity of Plectranthus tomentosa Essential Oil

ZHAO Xiao-zhen1,LI Chen2,CUI Xiao-dong2,WANG Zhuan-hua2*   

  1. 1 Shanxi Academy of Analytical Science; 2 Key Laboratory of Chemical Biology and  Molecular Engineering,Ministry of Education,Institute of Biotechnology,Shanxi University,Taiyuan 030006,China
  • Online:2016-03-30 Published:2016-04-07

摘要: 用水蒸气蒸馏法提取绒毛香茶菜叶精油,并用气相色谱-质谱(GC-MS)联用技术对其化学成分进行分析。共鉴定出31种化合物,主要含有脂肪族烯烃、醇类、酯类、脂肪族烷烃、芳香烃等化合物。用峰面积归一法测定了各成分的相对质量分数,约占精油总组分的92.94%,含量最高的单一化合物为柠檬烯,占总量的3686%。利用平板涂布法测定了该精油对四种供试菌株的最低抑菌浓度(MIC)和最低杀菌浓度(MBC),结果显示,该精油对阪崎肠杆菌没有明显抑制作用,但对大肠埃希氏菌、金黄色葡萄球菌、伤寒沙门氏菌都有较强的抑制效果。其中,对金黄色葡萄球菌的抑制作用最强,MIC和MBC分别为1 μL/mL和5 μL/mL。

关键词: 绒毛香茶菜, 精油, 化学成分, 抑菌活性, 鉴定

Abstract: The essential oil of Plectranthus tomentosa was extracted by steam distillation and was analyzed using gas chromatography-mass spectroscopy (GC-MS). Thirty-one compounds accounting for 92.94% of the total oil were identified by area normalization method.The main constituents were Aliphatic olefins,alcohols,esters,alkanes,aromatic hydrocarbons compounds.Limonene was found to be the most abundant component (36.86%) of P.tomentosa oil. The essential oil had obvious antibacterial effect according to experiments.Then,minimal inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were detected against four bacteria strains by Plate Counting method.The results showed that the essential oil had no inhibition on Enterobacter sakazakii, but had a strong inhibitory effect on Escherichia coli, Staphylococcus aureus and Salmonella typhi. The inhibitory effect on S.aureus was the strongest,MIC and MBC were 1 μL/mL and 5 μL/mL respectively.

Key words: Plectranthus tomentosa, essential oil, chemical composition, antimicrobial activity, analysis

中图分类号: 

R284