小茴香储存过程中挥发性成分的变化

摘要

The changes of volatile components in Foeniculum vulgare Mill during 12 months'storage are analyzed and discussed using gas chromatography-mass spectrometry (GC-MS)coupled to solid phase microextraction (SPME).It is found that besides the main ingredients trans-anethole and estragole (the relative total content is 72.2%,85.49%,93.06%,95.89%,90.13% in the origin and 3,6,9,12 months'storage respectively),the content of others changes significantly.The relative content of anisealdehyde increases to 6.1% from 0.47% after the storage of 12 months.The relative content of linalool reduces to 0.28% from 9.72% at the time of 6 months'storage.With the same storage time,the relative total content of terpenoids reduces to 2.5 1% from 14.87% (the main ingredient limonene reduces to 1.52% from 7.98%).Besides,small amount of esters (at the medium of storage),acids and alcohols (at the end of storage)is also detected in the storage.%采用固相微萃取-气质联用技术,测定了储存12个月的小茴香挥发性成分,探讨了其储存中挥发性成分的相对含量变化。结果发现：小茴香储存中除主要成分反式茴香脑和爱草脑的含量相对稳定外(在储存初始及3,6,9,12个月的总含量分别是72.2%,85.49%,93.06%,95.89%,90.13%),其他成分含量变化较大,其中,茴香醛含量增加,由起初的0.47%不断增加到6.1%；芳樟醇和萜类成分含量减小,且都在储存前半期,芳樟醇由初期的9.72%减少到0.28%,而萜类成分个数由14个减少到10个,总含量也由14.87%减少到2.51%(主要成分柠檬烯由初期的7.98%减少到1.52%)。此外,小茴香在储存中期还有少量酯类产生,尾期主要是酸类和醇类,它们的含量均不高。