Dynamic Changes in Metabolites and Transformation Pathways in Diqing Tibetan Pig Hams During Fermentation Determined by Widely Targeted Metabolomic Analysis

文献类型： 外文期刊

第一作者： Jia, Dan

作者： Jia, Dan;Jin, Siqi;Luo, Shuyuan;Li, Xinpeng;Dong, Xinxing;Yan, Dawei;Zhang, Jin;Quek, Siew-Young

作者机构：

关键词： metabolic pathways; Diqing Tibetan pig hams; fermentation; KEGG pathway analysis; widely targeted metabolome

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 14 期

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收录情况： SCI

摘要： This study investigated the metabolite dynamic changes and transformation pathways in Diqing Tibetan pig (DTP) hams during fermentation (0, 30, 90, 180, 360, 540 d) by widely targeted metabolomics. A total of 873 metabolites in 17 subclasses were detected, with significant changes in 448 metabolites. Additionally, 65 key metabolites were found to be involved in the top 10 pathways, with the top pathways for metabolite markers in mature hams including protein metabolism (2-oxocarboxylic acid metabolism, tryptophan metabolism and amino acid biosynthesis) and lipid metabolism (unsaturated fatty acid biosynthesis and linoleic acid metabolism). Overall, the unique DTP ham taste, flavor, and nutritional value may be contributed to by the significant accumulation of essential amino acids, MSG-like amino acids, free fatty acids (arachidonic acid, docosahexaenoic acid, and eicosapentaenoic acid), citric acid, oxaloacetic acid, succinic acid, and vitamin B. This study facilitates a comprehensive understanding of metabolic profiling and the transformation pathways of DTP hams during fermentation, providing novel insights into the biochemical mechanisms underlying traditional Tibetan pig hams, bridging traditional knowledge with modern omics technologies.

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