期刊
FOOD CHEMISTRY
卷 397, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2022.133773
关键词
Fermented sour fish; Aroma-active compounds; Aroma recombination and aroma omission
资金
- National Natural Science Foundation of China [31801575]
- earmarked fund for Jiangsu Agricultural Industry Technology System [JATS [2021] 508]
- Funda- mental Research Funds for the Central Universities [JUSRP121008]
- National Key Research and Development Program of China [2019YFD0901903]
- China Agriculture Research System of MOF and MARA [CARS -45-28]
This study characterized the key aroma compounds of low-salt fermented sour fish using HS-SPME-GC-MS. Eighty-eight volatile compounds were identified, and 18 aroma-active compounds were quantified. A recombination aroma model was used to match the aroma of fermented sour fish. The key aroma compounds were ethyl acetate, ethyl hexanoate, isoamyl acetate, ethyl butyrate, hexanal, 1-hexadecanal, and 2-pentylfuran.
In this study, key aroma compounds of low-salt fermented sour fish were characterized using headspace solid-phase micro extraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS), odor activity values (OAV) and aroma recombination and omission experiments. Eighty-eight volatile compounds, including esters, aldehydes, alcohols, acids, furans and pyrazines, were identified by HS-SPME-GC-MS. Eighteen aroma-active compounds were quantified by employing calculation of OAV greater than 1. A recombination aroma model prepared using aroma-active compounds based on the odorless fish matrix sensorially matched the aroma of fermented sour fish with a score of 4.5 out of 5. The omission experiment showed that 7 out of 18 compounds had a significant contribution to the overall aroma (P < 0.05). The key aroma compounds of fermented sour fish were concluded to be ethyl acetate (OAV = 189), ethyl hexanoate (OAV = 66), isoamyl acetate (OAV = 424), ethyl butyrate (OAV = 26), hexanal (OAV = 49), 1-hexadecanal (OAV = 14) and 2-pentylfuran (OAV = 13).
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