基于GC-IMS技术分析不同品种瓜萎籽中挥发性成分的差异

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关键词：瓜萎籽；挥发性成分；GC-IMS；指纹图谱；PCA

中图分类号：S323 文献标志码：A 文章编号：1008-1038（2025）07-0001-07

DOI：10.19590/j.cnki.1008-1038.2025.07.001

Analysis of the Differences in Volatile Compounds among Different Varieties of Trichosanthes kirilowii Seeds Using GC-IMS Technology

DU Wenyu1， ZHANG Pengtai²， ZHAO Xinyu1， ZHENG Xiaodong1*， SONG Yel* （1. Jinan Fruit Research Institute，All China Federation of Supply andMarketing Co-operatives，Jinan ， China;2. Shandong Provincial Institute of Product Quality Inspection， Jinan 25O199，China）

Abstract：This study employed gas chromatography -ion mobility spectrometry（GC-IMS）technology to systematically analyze the volatile components of three varieties of Trichosanthes kirilowii seeds.The aim was to elucidate the diferences inflavor characteristics and provideascientific basis for product development and optimization of processing techniques.By constructing GC-IMS fingerprint profilesand conducting principal component analysis（PCA），a total of 45volatile compounds were qualitatively identified.Among them，aldehyde compounds accounted for the highest proportion，being the main volatile components of T kirilowii seeds，with a relative content ranging from 49.77% to 52.77% ， ketone substances folowed， with a relative content ranging from 15.18% to 16.95 % .The fingerprint profile results showed that the common volatile compounds in the three varieties of T. kirilowii seeds mainly included alcohols，aldehyde substances，pyrazine substances，and ketone substances，presenting nutty，green，oily，and woody aroma.The‘Wanlou No.20'（2O#）T.kirilowi seeds exhibited the most diverse and abundant volatile compounds，characterized by creamy and fruity aromas.The ‘Wanlou No.9'（9#） T. kirilowiiseeds had relatively high contents of acetic acid and isovaleric acid，presenting sour， pungent and spicy odors.The‘Wanlou No.17'（17#） T. kirilowii seeds had relatively lower contents of other volatile compounds inadition to the common ones.PCA analysis demonstrated that GC-IMS could effectivelydistinguish different varietiesof T.kirilowii seeds.GC-IMScould rapidly detectand distinguish the flavorcharacteristicsanddiffrences of diferentvarietiesof T.kirilowiiseeds，providing scientific basisand reference for the quality control of T .kirilowii seeds.

Keywords： Trichosanthes kirilowi seeds; volatile compounds; GC-IMS; fingerprint profiles; PCA

瓜萎（Trichosantheskirilowii）又称栝楼、吊瓜等，是葫芦科瓜萎属多年生宿根攀援草本植物，是一种营养丰富、雌雄异株、药食两用的功能性食品[1-3]。（剩余7323字）