摘要
上海地区种植的香桃木(Myrtus communis L.)用水蒸气蒸馏法提取叶片中的精油,采用GC和GC-MS对其化学成分进行分析鉴定;并进一步对不同生长期,以及干、鲜叶中精油组分和含量的变化作了对比分析。结果表明:在研究中,鉴定出了36种精油成分,其中萜烯类14种,酯9种,醇7种,萜类氧化物3种,醛、酮、酚各1种。初花期的精油含有率(2.5mL·kg-1)略高于结实期(2.3mL·kg-1),结实期干叶精油含有率(2.17mL·kg-1)略低于鲜叶。在这两种情况下,精油组分没有明显的变化。初花期鲜叶主成分为:乙酸桃金娘烯酯(36.93%)、芳樟醇(14.80%)、1,8-桉叶油素(15.80%)、α-蒎烯(12.64%)、桃金娘烯醇(5.54%);结实期鲜叶主成分为:乙酸桃金娘烯酯(31.83%)、芳樟醇(21.48%)、1,8-桉叶油素(15.39%)、α-蒎烯(10.32%)、桃金娘烯醇(4.69%);结实期干叶主成分:乙酸桃金娘烯酯(35.34%)、芳樟醇(18.48%)、1,8-桉叶油素(15.86%)、α-蒎烯(10.64%)、桃金娘烯醇(4.47%)。
This article used steam distillation to extract the leaves essential oil of Myrtus communis L. grown in Shanghai, the compositions of essential oil was analysed by GC and GC-MS. And further more, it had made the eontrastive analysis of the essential oil＇s compositions and content in different vegetal periods, as well as in the dry and fresh leaves. The result indicated that： the essential oil was identified 36 kinds of matters, including 14 terpenes, 9 esters, 7 mellows, 3 terpene oxides, 1 aldehyde,ketone and hydroxybenzene respectively. The content of essential oil was little higher at the beginning of the florescence （2.5 mL·kg^-1） than in the fructifieation period （2.3 mL·kg^-1）. In the fructification period, the content of essential oil was less in dry leaves （2.17 mL·kg^-1） than in the fresh ones. The compositions of essential oil had no large change under the both conditions expect the content. The major compositions of fresh leaves at the beginning of the florescence were Myrtenyl acetate （36.93%）.,Linalool （14.80%）,l,8-Cineole （15.80%）, α-pinene （12.64%） and Myrtenol （5.54%）; The ones of fresh leaves in the fructification period were Myrtenyl acetate （31.83%）, Linalool（21.48%）, 1,8-Cineole （15.39%）, α-pinene （10.32%） and Nyrtenol （4.69%）; The ones of dry leaves in the fructification period were Myrtenyl acetate （35.34%）, Linalool （18.48%）, 1,8-Cineole（15.86%）, α-pinene,（10.64%） and Myrtenol,（4.47%）.
出处
《上海交通大学学报（农业科学版）》
2006年第4期349-353,357,共6页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
上海市科委重点攻关项目(043919322)
关键词
香桃木
精油含量
精油成分
Myrtus communis L.
content of essential oil
compositions of essential oil
