不同加工工艺多穗石柯茶挥发性成分差异分析  

Analysis on Volatile Compounds of Lithocarpus litseifolius Tea by Different Processing Methods

作　　者：方自扬 杨漓 李桂珍[1,2] 秦荣秀 谷瑶[1,2] Fang Ziyang;Yang Li;Li Guizhen;Qin Rongxiu;Gu Yao(Guangxi Key Laboratory of Special Non-wood Forest Cultivation and Utilization,Nanning,Guangxi 530002,China;Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China;Shenyang Pharmaceutical University,Shenyang,Liaoning 110016,China)

机构地区：[1]广西特色经济林培育与利用重点实验室,广西南宁530002 [2]广西壮族自治区林业科学研究院,广西南宁530002 [3]沈阳药科大学,辽宁沈阳110016

出　　处：《广西林业科学》2022年第1期93-98,共6页Guangxi Forestry Science

基　　金：广西重点研发计划项目(桂科AB18294020);中央财政林业科技推广示范项目([2021]TG21号)。

摘　　要：为研究不同加工工艺对多穗石柯(Lithocarpus litseifolius)茶挥发性成分的影响,以晾干、炒制和发酵的多穗石柯茶为样品,采用顶空气相色谱-离子迁移谱(HS-GC-IMS)和主成分分析(PCA)定性和定量地对其挥发性成分进行分析。结果表明,共有58种化合物被识别;三维谱图和指纹图谱显示不同加工工艺样品的挥发性成分有差异,多穗石柯叶在不同加工条件下产生热分解和一系列化学反应。HS-GC-IMS与PCA相结合,可快速、灵敏地对样品挥发性成分进行鉴定和分类。In order to study influence of different processing methods on volatile compounds of Lithocarpus litseifolius tea, headspace-gas chromatography-ion mobility spectrometry(HS-GC-IMS) and principal component analysis(PCA) were used to analyze volatile compounds of L. litseifolius teas by drying under natural condition, frying and fermentation. Results showed that 58 compounds were identified and there were obvious differences in volatile compounds in samples treated by different processing methods in three dimensional GC-IMS spectra and fingerprints. There were thermal decomposition and a series of chemical reactions when L. litseifolius leaves were treated by different processing conditions. Volatile compounds could be quickly and sensitively identified by HS-GC-IMS and PCA.

关 键 词：多穗石柯 顶空气相色谱-离子迁移谱(HS-GC-IMS) 发酵 炒制 指纹图谱 

分 类 号：R284.2[医药卫生—中药学]