Elucidating the mechanism underlying volatile and non-volatile compound development related to microbial amino acid metabolism during golden pomfret (Trachinotus ovatus) fermentation
文献类型： 外文期刊
作者： Qiu, Yingjie 1 ; Wu, Yanyan 1 ; Li, Laihao 1 ; Chen, Shengjun 1 ; Zhao, Yongqiang 1 ; Li, Chunsheng 1 ; Xiang, Huan 1 ; Wang, Di 1 ; Wei, Ya 1 ; Wang, Yueqi 1 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Natl R&D Ctr Aquat Prod Proc, Key Lab Aquat Prod Proc,Minist Agr & Rural Affairs, Guangzhou 510300, Peoples R China
2.Jiangsu Ocean Univ, Coinnovat Ctr Jiangsu Marine Bioind Technol, Lianyungang 222005, Peoples R China
3.Ocean Univ Guangdong, Coll Food Sci & Technol, Zhanjiang 524000, Peoples R China
4.Dalian Polytech Univ, Collaborat Innovat Ctr Seafood Deep Proc, Dalian 116034, Peoples R China
5.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Natl R&D Ctr Aquat Prod Proc, Key Lab Aquat Prod Proc,Minist Agr & Rural Affairs, Guangzhou, Peoples R China
关键词： Fermented fish; Taste; Metagenomics; Amino acid metabolism; Microorganism; Flavor formation; Golden pomfret
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：7.425； 五年影响因子：7.716 ）
ISSN： 0963-9969
年卷期： 2022 年 162 卷
页码：
收录情况： SCI
摘要： Golden pomfret (Trachinotus ovatus) is an important farmed fish in Asia, often consumed following salting and natural microbial fermentation. Flavor development in fermented foods depends on the metabolism of fermenting microbes, especially amino acid metabolism. However, the microbes involved in golden pomfret fermentation and the mechanism by which they regulate flavor development are largely unknown. Accordingly, in this study, we investigated the microbial community and volatile and non-volatile compounds during the traditional fermentation of golden pomfret, focusing on amino acid metabolism. Thirty-five volatile compounds were detected. Glutamate, alanine, and leucine were the main amino acids responsible for the development of the characteristic taste of fermented golden pomfret. Metagenomic analyses were performed, and microbial genes for amino acid metabolism were functionally annotated, revealing the underlying mechanisms of flavor development during fish fermentation. Halobacterium, Clostridium, Natrinema, Alkalibacillus, Natrialba, and Vibrio were the dominant microbial genera with a major contribution to amino acid metabolism during fermentation and were strongly correlated with the majority of volatile compounds. The study provides a theoretical reference for the mechanism of flavor formation and important information on the microbial sources of volatile compounds derived from amino acids.
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