云南不同地区草果物理性状、精油含量及组成分析

Analysis of Physical Properties, Essential Oil Content and Composition of Amomum tsao-ko from Different Origins of Yunnan

测量云南省不同产地草果的物理性状、单粒重,并采用水蒸气蒸馏法提取草果挥发油,GC-MS法分析鉴定草果精油的化学成分。结果表明,云南省不同产地草果的物理长宽比和单粒重存在较大差异,水蒸气蒸馏法提取的精油,共分离鉴定出39种化合物,主要为单萜类化合物。不同产地的挥发油主要成分相似,含量存在差异,本研究可为鉴别草果真实性及评价其质量提供依据。

The physical properties, mean weight and essential oil composition of Amomum tsao-ko from different origin of Yunnan, China were studied by gravimetric analysis, steam distillation and GC-MS. Results： A significant difference of physical properties exist among the thirteen samples, and thirty-nine compounds were isolated from the Amomum tsao-ko essential oil extracted by steam distillation, mainly monoterpenoid compounds. The main components of Amomum tsao-ko essential oil in different origins were similar, but the content was different, and the study provided a basis for the identification of the authenticity of Chinese Amomum tsao –ko and the evaluation of its quality.