Analysis of volatile oil from Lygodium japonicum by GC-MS

Abstract

目的: 研究海金沙挥发油的化学成分。 方法: 用海金沙全草经过水蒸气蒸馏所得的挥发油,运用GC—MS技术,结合计算机检索对具体化学成分进行了分析和鉴定。用峰面积归一法计算了各个组分的相对含量。 结果: 分离鉴定了其中52个化合物,占挥发油总量的81.70％。 结论: 海金沙挥发油的化学成分主要为: 不饱和烃类(30.43％)、有机酸类(14.926％)、酮类(12.818％)、非萜源醇类(8.296％)。其中含量在3％以上的组分有: 3-甲基-1-戊醇(4.097％)、2-(甲基乙酰基)-3-蒈烯(4.25％)、环辛酮(7.616％)、(E)-己烯酸(12.767％)、十一炔(28.61％)。 Objective: To study the chemical constituents of the essential oil from whole herb of Lygodium japonicum. Methods: The essential oil was obtained by steam distillation. Chemical components were separated and identified by GC-MS. The relative content of each component was determined by area nomalization. Results: Fifty-two volatile compounds were isolated and identified for the first time, representing 81.702% of the total oil. Conclusion: The main constituents of this oil were unsaturated hydrocarbon (30.43% ), organic acids (14.926%), ketone (12.818%) and nonterpineols (8.296%) . The main compounds with contents over 3% (V/V) were as follows: 3-methyl-1-pentanol 4.097% , 2-(methylacetyl)- 3-carene 4.25% , eyclooctenone 7.616% , (E)-2-hexenoic acid 12.767% and 1-undecyne 28.611%.