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《Journal of South China University of Technology(Natural Science Edition)》 2006-03
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Chemical Compound Identification and Antioxidant Activity of Essential Oil from Myrica rubra Var.astropurea Tsen.Leaves

Zhong Rui-min~1 Zhang Zhen-ming~2 Wang Yu-mei~2 Xiao Zi-jun~2 Zeng Qing-xiao~1 Peng Hua-gui~3 (1.College of Light Chemistry and Food Science,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;2.Yingdong College of Biotechnology,Shaoguan College,Shaoguan 512005,Guangdong,China;3.Dadingshan Mountain Administration of Nanling National Nature Reserve,Shaoguan,512726,Guandong,China)  
The chemical compositions of the essential oil from Myrica rubra Var.astropurea Tsen.leaves were analyzed and identified by the GC-MS analysis and the Kovats retention index.The antioxidant activity of the essential oil was also investigated with three different methods: the 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical scavenger,the β-carotene bleaching test and the thiobarbituric acid reactive species assay.The results show that the essential oil is constituted mainly by sesquiterpenes(97.45%) and dominated with β-caryophyllene(17.67%),(E)-nerolidol(16.68%),5-hydroxycalamenene(7.13%),β-selinene(6.63%),isocaryophyllene(6.46%) and α-cadinene(5.81%),respectively,and that the essential oil possesses definite scavenging efficacy on radicals and significant antioxidant activity in lipid systems(account for 60%~85% of that of butylated hydroxytoluene(BHT)), which may result from the large content of 5-hydroxycalamenene.
【Fund】: 国家自然科学基金资助项目(30370151)
【CateGory Index】: R284
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