食品与机械2017，Vol.33Issue(12)：70-75,6.DOI:10.13652/j.issn.1003-5788.2017.12.014
桉叶精油气相扩散抑菌活性及抑菌成分研究
Antimicrobial activity and chemical composition of EucaIyptus essentiaI oil
摘要
Abstract
To study the antimicrobial potential of vapor-phase Euca-lyptus essential oil, the antimicrobial activity and minimum inhibitory concentrations (MIC)were evaluated against the tested microorganisms in vapor,liquid and solid phases.The chemical con-stitutes of Eucalyptus essential oil and its vapor were analyzed by gas chromatography-mass spectrometry(GC-MS)and solid phase micro-extraction(SPME)GC-MS.The results demonstrated that Eucalyp-tus essential oil vapor had obvious antimicrobial effect on the tested microorganisms.The antimicrobial activities of Eucalyptus essential oil vapor against Escherichia coli and Staphylococcus aurous were stronger than that against Aspergillus niger.The MIC value (0.045~0.36 mg/mL)in the vapor phase to the tested microorgan-isms was significantly lower than that in the liquid-phase MIC(4.5~1 8.0 mg/mL)and the solid phase MIC (4.5~1 8.0 mg/mL).The dominant components,mainly terpenes and alcohols,showed not significant difference between the Eucalyptus essential oil and its va-por.The antibacterial activity of Eucalyptus essential oil vapor was related toα-pinene,D-Limonene,3-Carene,Terpinolene and Myrce-ne,and the relative increase in terpene contents led to the stronger antibacterial activity.关键词
气相扩散/抑菌活性/SPME/GC-MS/抑菌成分Key words
Vapor-phase diffusion/Antimicrobial activity/SPME/GC-MS/Antimicrobial compounds引用本文复制引用
任小玲,岳淑丽,向红,刘荟雅..桉叶精油气相扩散抑菌活性及抑菌成分研究[J].食品与机械,2017,33(12):70-75,6.基金项目
航天营养与食品工程重点实验室开放基金(编号:h2015631) （编号:h2015631）
