华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (3): 49-53,81.

• 化学化工、能源 • 上一篇    下一篇

杨梅叶芳香精油的成分鉴定及抗氧化活性

钟瑞敏1 张振明2 王羽梅2 肖仔君2 曾庆孝1 彭华贵3   

  1. 1. 华南理工大学 轻工与食品学院, 广东 广州 510640; 2. 韶关学院 英东生物工程学院, 广东 韶关 512005;3. 广东南岭国家自然保护区大顶山管理站, 广东 韶关 512726
  • 收稿日期:2005-06-09 出版日期:2006-03-25 发布日期:2006-03-25
  • 通信作者: 钟瑞敏(1967-) , 男,副教授,博士生,主要从事食品科学和天然产物利用的研究. E-mail:zhongrm9898@163. com
  • 作者简介:钟瑞敏(1967-) , 男,副教授,博士生,主要从事食品科学和天然产物利用的研究.
  • 基金资助:

    国家自然科学基金资助项目(30370151)

Chemical Compound Identification and Antioxidant Activity of Essential Oil from Myrica rubra Var. astropurea Tsen. Leaves

Zhong Rui-minZhang Zhen-ming2  Wang Yu-mei2   Xiao Zi-junZeng Qing-xiaoPeng Hua-gui3   

  1. 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
  • Received:2005-06-09 Online:2006-03-25 Published:2006-03-25
  • Contact: 钟瑞敏(1967-) , 男,副教授,博士生,主要从事食品科学和天然产物利用的研究. E-mail:zhongrm9898@163. com
  • About author:钟瑞敏(1967-) , 男,副教授,博士生,主要从事食品科学和天然产物利用的研究.
  • Supported by:

    国家自然科学基金资助项目(30370151)

摘要: 采用气相色谱- 质谱联用技术并结合Kovats保留指数( IK )对比法分析鉴定了乌杨梅(Myrica rubra Var. astropurea Tsen. )鲜叶芳香精油的成分,同时运用1, 1-二苯基222苦基苯肼(DPPH)清除法、β-胡萝卜素漂白法和硫代巴比妥酸法对其抗氧化活性进行了对比分析. 分析结果表明: 乌杨梅叶精油成分以倍半萜类化合物为主(占总相对含量的97. 45% ) ,其中β-石竹烯( 17. 67% ) 、( E) -橙花叔醇( 16. 68%) 、52羟基去氢白菖烯(7. 13% ) 、β-蛇麻烯(6. 63%) 、异石竹烯(6. 46% )和α-杜松烯(5. 81% )是其特征组分;乌杨梅叶精油具有一定的自由基清除能力和优异的脂质抗氧化活性,抗脂质氧化能力相当于强抗氧化剂2, 6-二叔丁基对甲酚(BHT)的60%~85%. 乌杨梅叶精油的强抗氧化活性可能与其含有较多的5-羟基去氢白菖烯有关.

关键词: 乌杨梅, 芳香精油, 抗氧化活性, Kovats保留指数

Abstract:

The chemical compositions of the essential oil from Myrica rubra Var. astropurea Tsen. leaveswere analyzed and identified by the GC-MS analysis and the Kovats retention index. The antioxidant activity of the essential oilwas 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.

Key words: Myrica rubra Var. astropurea Tsen., essential oil, antioxidant activity, Kovats retention inde