Integrated Metabolomic and Microbial Analysis of Quality Dynamics in Channel Catfish (Ictalurus punctatus) Under Refrigerated and Frozen Storage
文献类型： 外文期刊
作者： Xia, Liwei 1 ; Zhou, Shun 2 ; Lian, Kaiqi 3 ; Chen, Shengao 1 ;
作者机构： 1.Tarim Univ, Coll Life Sci & Technol, Tarim Res Ctr Rare Fishes, Alar 843300, Peoples R China
2.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China
3.Anyang Inst Technol, Sch Biotechnol & Food Sci, Anyang 455000, Peoples R China
关键词： channel catfish; storage; lipid oxidation; metabolomics; microbiomics
期刊名称：FOODS （ 影响因子：5.1； 五年影响因子：5.6 ）
ISSN：
年卷期： 2025 年 14 卷 7 期
页码：
收录情况： SCI
摘要： Channel catfish (Ictalurus punctatus) is a widely consumed freshwater fish known for its nutritional value but is highly prone to spoilage. This study investigated the quality changes of catfish muscle tissue under refrigeration and freezing through physicochemical, metabolomic, and microbial analyses. Results revealed that sensory scores decreased significantly during storage, with frozen samples maintaining similar scores to refrigerated ones after extended periods. Protein degradation and lipid oxidation, indicated by TVB-N and TBARS levels, were more pronounced during prolonged freezing. Metabolomic profiling identified 261 differential metabolites under long-term freezing, including elevated phosphatidylcholines, sphingomyelins, and disrupted amino acid pathways. Shifts in spoilage-associated microbial genera, such as Pseudomonas, and the correlations between microbial genera and specific metabolites, such as Methylobacterium with methylmalonic acid, highlighted microbial-driven spoilage processes. These findings provided a comprehensive understanding of quality deterioration during storage, guiding the development of enhanced preservation strategies for aquatic products.
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