GC-MS法比较分析不同产地川佛手精油成分

比较分析不同产地川佛手鲜果精油成分，采用水蒸气蒸馏法提取10 个不同产地川佛手精油并计算得率，利用GC-MS、相关性分析及聚类分析法对样品成分进行分析。结果表明，从10 批川佛手精油中共鉴定出117 种化学成分，主要为单萜类、醇类、倍半萜类成分，其中柠檬烯和γ-松油烯为最主要成分；其共有的9 种成分中部分成分之间显著相关（P<0.05)；聚类分析将10 批川佛手分为4 类:S1、S2聚为一类，S6、S7、S9聚为一类，S3、S4、S5、S8聚为一类，S10为一类。综上所述，不同产地川佛手精油的化学成分存在一定的差异，同一成分的含量在不同产地川佛手精油中也存在差异。

Comparative Analysis of Essential Oil Components of Bergamot from Different Origins by GC-MS

The components of essential oil of fresh fruit of bergamot from different origins were compared and analyzed.The essential oil of fresh fruit of bergamot from 10 batches were extracted by steam distillation and the yields were calculated.The components of the samples were analyzed by GC-MS,correlation analysis and cluster analysis.The results showed that a total of 117 compounds were identified in the essential oil of fresh fruit of bergamot from 10 batches,they were mainly monoterpenes,alcohols and sesquiterpenes,among which(+)-dipentene andγ-terpinene were the most abundant components.There were 9 common components and some of which were significantly correlated with each other by correlation analysis(P<0.05).Cluster analysis divided bergamot from 10 batches into 4 categories:S1 and S2 were grouped into one class,S6,S7 and S9 were grouped into one class,S3,S4,S5 and S8 were grouped into one class,and S10 was grouped into one class.In summary,there are some differences of the components in essential oil of bergamot from different origins,and the content of the same component also has great differences in essential oil of bergamot from different origins.