摘要
分析不同产地芋头挥发性有机化合物组成差异,并构建芋头产地溯源的可视化指纹图谱。采用气相离子迁移谱法对不同产地芋头的挥发性物质进行测定,结合主成分分析(PCA)实现样品产地的快速区分,进一步筛选芋头中差异挥发性物质。结果表明,在不同产地芋头中,共检测到45个信号峰,鉴定出26种化合物,包括单体和部分化合物的二聚体。主成分分析将芋头分为3类,其中,靖江香沙芋和奉化芋头的挥发性物质较为相似,而与荔浦芋头、沙沟芋头差别很大。异丙醇、2-甲基-乙酸丁酯、辛酸甲酯是区别不同芋头的特征标记物。该方法直观、快速,为地方特色芋头的区分提供了新方法和技术支持。
To analyze the composition of volatile organic compounds in taro from different origins,and construct visual fingerprint of taro origins.The volatile components of taro from different origins were determined by gas chromatographyion mobility spectrometry(GC-IMS),and principal component analysis(PCA)could quickly distinguish the differences of volatile components,further screened the different volatile compounds in taro samples.Results showed that,a total of 45 signal peaks were detected in taro from different origins,and 26 compounds were identified,including monomers and dimers of some compounds.Taro samples could be divided into three categories by PCA.Among them,the volatile substances of Jingjiang taro and Fenghua taro were similar,but they were significant different from Lipu taro and Shagou taro.Isopropanol,2-methyl-butyl acetate and methyl octanoate were regarded as characteristic markers to distinguish different taro samples.This method was intuitive and rapid,and would provide a novel method and technical support for distinguishing local characteristic taro.
作者
胡航伟
巩敏
梁辰
刘凌霄
王亮
刘云国
HU Hangwei;GONG Min;LIANG Chen;LIU Lingxiao;WANG Liang;LIU Yunguo(College of Life Sciences,Linyi University,Linyi 276000,China;College of Life Science and Technology,Xinjiang University,Urumqi 830002,China;Linyi Academy of Agricultural Sciences,Linyi 276000,China)
出处
《食品工业科技》
CAS
北大核心
2023年第10期297-303,共7页
Science and Technology of Food Industry
基金
山东省高等学校青创人才引育计划创新团队项目(2021QCYY007)
山东省重点研发计划(医用食品专项计划)(2019YYSP026)。
关键词
芋头
气相离子迁移谱
化学计量学
特征标记物
taro(Colocasia esculenta L.)
gas chromatography-ion mobility spectrometry
chemometrics
characteristic marker
