Antimicrobial activity of essential oil from Pinus yunnanensis Franch.var tenuifolia growing in China
The in vitro antimicrobial activity of the essential oil from needles of Pinus yunnanensis Franch.var tenuifolia was investigated.The essential oil was obtained by hydro-distillation and analyzed by gas chromatography-mass spectrometry (GC-MS) method.The major compound of the essential oil was a-pinene (22.542%),followed by β-caryophyllene (16.636%),1,2,4a,5,8,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-naphthalene (5.085%),β-cubebene (4.779%),elixene (4.442%),α-cadinol (3.528%),α-caryophyllene (3.459%) and limonene (3.428%).The antimicrobial activity of oil was evaluated by using disc diffusion and agar dilution methods,respectively.The results indicated that the essential oil held moderate antimicrobial activity against tested microorganisms.The essential oil did not differ remarkably in its antibacterial and antifungal activities.The minimum inhibitory concentrations (MICs) were 40 ml/1 for bacterial strains,and 80 ml/1 for fungal strains.
Pinusyunnanensis Franch.var tenuifolia Essential oil Chemical composition GC-MS Antimicrobial activity
Yuhong Tian Zi Li Shihua Wu Qiong Huang
Department of biological and Chemical Engineering, Guangxi University of Technology, Liuzhou, Guangxi, 545006, China
国际会议
厦门
英文
438-442
2012-01-04（万方平台首次上网日期，不代表论文的发表时间）