气相色谱-质谱法测定姜黄挥发油化学成分

Determination of Chemical Constituents of the Volatile Oil from Curcuma Longa by Gas Chromatography Mass Spectrometry

采用水蒸气蒸馏法提取姜黄挥发油，用气相色谱－质谱联用技术分离和鉴定姜黄挥发油的化学成分。经计算机ＮＢＳ谱库检索，发现姜黄挥发油中至少有１５个峰，鉴定出α－姜黄烯、α－姜烯、桉叶油素和球姜酮等１５种组分；另外还有１－（３－环戊基醛）－２，４－二甲基苯、β－倍半水芹烯、大根香叶酮、大根香叶烷、顺双环［３，３，１］酮－２－烯－９－醇等成分。姜黄挥发油中主要成分为α－姜黄烯。

The study of chemical constituents of the volatile oil from Curcuma longa is reported. The volatile oil was extracted by steam distillation. Fifteen components in the oil were separated and identified by gas chromatography mass spectrometry(GC/MS). The results were elucidated based on the NBS standard mass spectral data. The total ion current chromatogram showed their mass fraction by normalization method. α curcumene, α zingiberene,1,8 cineole and zerumbone, which had been reported before were found in Curcuma longa volatile oil, but 1 (3 cyclopentylpropyl) 2,4 dimethylbenzene, β sesquiphellandrene, germacrene etc identified simultaneously in the oil had never been reported. The major chemical constituent of the volatile oil from Curcuma longa is α curcumene.