香紫苏油主成分含量测定及其香气贡献评价

Bing BAI,Shoudao CHU,Jing YANG,Gaihong ZHANG,Chunxiao JIA,Duobin MAO

Journal of Zhengzhou University of Light Industry(Natural Science Edition)（2018）

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Abstract

以苯甲醇为内标物,选用HP-5MS毛细管色谱柱,采用GC-MS法对香紫苏油中10种主要成分进行含量测定,并对其香气阈值和香气活力值进行测定和计算.结果表明:该方法可使样品中各组分很好地分离,线性方程相关系数大于0.999,加标回收率为90.6％～97.2％,检出限为9.5～232.8 ng/L,说明该方法重复性和灵敏度良好;香紫苏油中芳樟醇和乙酸芳樟酯的含量分别为20.3％和42.7％,香气阈值较低且香气活力值远高于其他成分,对香紫苏油香气贡献最大,与嗅香评价结果一致.

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