摘要
采用50/30μm DVB/CAR/PDMS型非极性萃取头和PA-85μm型极性萃取头对玉米霉变过程的挥发物进行富集,并采用气相色谱-质谱联用仪进行检测,以期找到霉变发生的特征挥发物。试验结果显示:3-辛酮、二氢-β-紫罗兰酮、榄香烯、棕榈酸、3-乙基苯酚、4-乙基愈创木酚等物质是储藏前期未检出或者含量较低、发热霉变后被检出且含量较高具有刺激性气味的物质,对这些物质进行检测,可以判断玉米霉变的程度及为预防玉米霉变提供参考。
In order to identify the substances during the maizeing mildew process,the volatile substances were enriched by 50/30μm DVB/CAR/PDMS non-polar extraction head and PA-85μm polar extraction head,and identified by gas chromatography-spectrometry.The results showed that some pungent substances,such as3-Octanone,dihydro-β-ionone,elemene,palmitic acid,3-ethylphenol,and 4-e thylguaiacol,were not detected or detected with low content at early stage of storage stage.But the content of these substances gradually increased after the heating and mildewing.Therefore,detecting these substances could be used for identifying the mildew degree and preventing mildew.
作者
万立昊
渠琛玲
李慧
王红亮
王若兰
WAN Lihao;QU Chenling;LI Hui;WANG Hongliang;WANG Ruolan(School of Food Science and Technology,Henan University of Technology,Zhengzhou 450001,China)
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2019年第2期41-47,共7页
Journal of Henan University of Technology：Natural Science Edition
基金
"十三五"国家重点研发计划课题(2016YFD0400104)
关键词
玉米
霉变
挥发性物质
顶空固相微萃取-气质联用
maize
mildew
volatile substances
headspace solid-phase microextraction combined with gas chromatography-mass spectrometry(SPME-GC-MS)
