Composition Analysis of Essential Oil of Myrtus Communis L. in Different Vegetal Periods and in Dry and Fresh Leaves
Composition Analysis of Essential Oil of Myrtus Communis L. in Different Vegetal Periods and in Dry and Fresh Leaves
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发表时间：
2006
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通讯作者：
Y. Lei
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作者：
Y. Lei
本文采用水蒸气蒸馏法提取上海产桃金娘叶精油，采用气相色谱和气相色谱-质谱法对其成分进行了分析。并对不同生长期、干叶和鲜叶中挥发油的成分和含量进行了对比分析。结果表明：挥发油中鉴定出萜类14种，酯类9种，醇化类7种，萜类氧化物3种，醛类1种。酮和羟基苯。花期初挥发油含量（2.5 mL·kg-1）略高于结实期（2.3 mL·kg-1）。果期干叶挥发油含量为2.17 mL·kg-1，低于鲜叶挥发油含量。除含量外，两种条件下挥发油的成分变化不大。花期初鲜叶的主要成分为乙酸桃金娘酯（36.93%）和乙酸桃金娘酯（36.93%）。芳樟醇(14.80%)?1、8-Cineole (15.80%) ?α-蒎烯（12.64%）和桃金娘烯醇（5.54%）；果子期鲜叶中桃金娘烯酯（31.83%）、芳樟醇（21.48%）、1,8-桉树脑（15.39%）、α-蒎烯（10.32%）和桃金娘烯醇（4.69%）含量最高；果子期干叶分别为乙酸桃金娘烯酯（35.34%）、芳樟醇（18.48%）、1,8-桉树脑（15.86%）、α-蒎烯（10.64%）和桃金娘烯醇（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 contrastive 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 fructification 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%)?1,8-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 Myrtenol (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%).