Integrated Metabolomic and Microbial Analysis of Quality Dynamics in Channel Catfish (<i>Ictalurus punctatus</i>) Under Refrigerated and Frozen Storage.

ABSTRACT: 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 spoi

SUBMITTER: Xia L 

PROVIDER: S-EPMC11988692 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature