期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 134, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.lwt.2020.110259
关键词
Fish sauce; Fatty acid; Flavor; Correlation analysis; Oxidation pathway
资金
- National Natural Science Foundation of China [31871870]
- China Agriculture Research System [CARS-46]
- Major Program of Technical Innovation of Hubei Province [2018ABA100]
An appropriate fish model helps track changes of lipid and fatty acid during fermentation. Here we selected three freshwater fish (Culter alburnus, Carassius auratus and letaturus Punetaus) as the fermentative materials of fish sauce due to their significantly different contents of lipid and unsaturated fatty acid. The electronic nose showed that the flavor profiles of sauce samples prepared with different fish were dramatically different. A total of 71 volatile compounds of fish sauce were detected by solid-phase micmextraction-gas chromatography-mass spectrometry (SPME-GC/MS). Then nine key flavor compounds, including 3-methylbutanal, 3-methyl-lbutanol, 3-(methylthio)propanal, 1-octen-3-ol, phenylacetaldehyde, nonanal, dimethyl trisulfide, decanal and hexanol, were screened based on odor activity values. According to correlation analysis between fatty acid profiles and fish sauce aroma, possible pathways of oleic acid (C18:1) and linoleic acid (C18:2) oxidation were suggested: oleic acid undergone the auto-oxidation to mainly form 10- hydroperoxide and 11- hydmperoxide, and (or) secondary form 8-hydroperoxide, then converted to nonanal, octanal and decanal; linoleic acid undergone the enzymatic oxidation to form 10-L(S)-hydroperoxy-cis-9, trans-11-octadecadieuoic acid, then converted to 1-octen-3-ol.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据