Metabolomics Analysis of the Spoilage Characteristics of <i>Pseudomonas fragi</i> and <i>Aeromonas salmonicida</i> Co-Culture in Refrigerated Grass Carp.

ABSTRACT: Pseudomonas fragi and Aeromonas salmonicida are major spoilage microorganisms in refrigerated grass carp. This study systematically investigated the physicochemical and metabolomic characteristics of chilled grass carp that were artificially inoculated with P. fragi and A. salmonicida in mono- and co-culture. The results indicated that P. fragi was the dominant bacterium in the co-culture of grass carp. The P. fragi-inoculated group exhibited significantly higher levels of total volatile basic nitrogen and thiobarbituric acid reactive substances (TBARs, byproducts of lipid peroxidation) compared with the A. salmonicida group. Moreover, the TBAR levels were greater in the co-culture than in the A. salmonicida group at the end of storag

SUBMITTER: Liu Y 

PROVIDER: S-EPMC12470174 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature