海金沙全草挥发油气相色谱-质谱研究

 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％)。

Analysis of volatile oil from Lygodium japonicum by GC-MS

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%.