期刊论文

中文

食品科技

1005-9989

2020

45

3

190-195

10.13684/j.cnki.spkj.2020.03.035

(2016YFD0401103):国家重点研发计划项目

本校为第一机构

采用固相微萃取(SPME)与气相色谱-质谱(GC-MS)联用技术检测菜籽油挥发性成分,优化其萃取条件,并分析6种菜籽油高温处理前后的挥发性成分差异.考察萃取柱类型、萃取时间和温度对挥发性成分总峰面积和总检出物数量的影响,优化前处理条件为:采用75 μm CAR/PDMS-取柱进行HS-SPME处理进样、萃取温度70℃、革取时间40 min,在此条件下测定6种菜籽油经高温处理前后的挥发性成分,采用化学计量学方法,以最小峰面积不低于1％分别筛选出8个和15个共有特征成分.经短时高温处理后,菜籽油的醛类、烯类、醇类等烷烃类挥发性成分增加,尤其是高温处理前后共有的己醛、辛醛、1-乙基-环己烯和壬醛,而芳香族类成分减...

The volatile components of rapeseed oil were analyzed by the headspace solid phase microextraction(HS-SPME) method with optimized extraction conditions.The volatile components of six different rapeseed oils before and after high temperature treatment were then compared.The effects of extraction column type,extraction time and temperature on the amount and total peak area of volatile components detected by GC-MS were investigated.The optimized conditions of HS-SPME injection were as follows 75μm CAR/PDMS extraction column,extraction temperature...