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Insights into the Metabolite Differentiation Mechanism Between Chinese Dry-Cured Fatty Ham and Lean Ham Through UPLC-MS/MS-Based Untargeted Metabolomics

文献类型： 外文期刊

作者： Xie, Ruoyu 1 ; Wu, Xiaoli 2 ; Hu, Jun 2 ; Chen, Wenxuan 2 ; Zhao, Ke 2 ; Li, Huanhuan 2 ; Chen, Lihong 2 ; Du, Hongying 3 ; Liu, Yaqiong 1 ; Zhang, Jin 2 ;

作者机构： 1.Hebei Agr Univ, Coll Food Sci & Technol, Baoding 071001, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Food Sci, State Key Lab Qual & Safety Agroprod, Zhejiang Key Lab Intelligent Food Logist & Proc, Hangzhou 310021, Peoples R China

3.Nanjing Forestry Univ, Coll Light Ind & Food Engn, Dept Food Sci & Engn, Nanjing 210037, Peoples R China

关键词： fatty ham; lean ham; Chinese dry-cured ham; untargeted metabolomics; UPLC-MS/MS; differential metabolite

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 3 期

页码：

收录情况： SCI

摘要： To understand the impact and mechanism of removing fat and skin tissue on the nutritional metabolism of Chinese dry cured ham, the differential metabolites (DMs) profile between lean ham (LH) and fatty ham (FH) was explored though untargeted metabolomics based on UPLC-MS/MS. The results showed significant differences of the metabolite profiles between FH and LH. A total of 450 defined metabolites were detected, and 266 metabolites among them had significantly different abundances between the two hams, mainly including organic acids and derivatives, and lipids and lipid-like molecules, as well as organoheterocyclic compounds. Furthermore, 131 metabolites were identified as DMs, among which 101 and 30 DMs showed remarkably higher contents in FH and LH, respectively. The further Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis suggested that DMs can be mostly enriched in the pathways of ABC transporters, amino acid biosynthesis, protein digestion and absorption, aminoacyl-tRNA biosynthesis, and 2-oxocarboxylic acid metabolism. Moreover, the metabolic network of DMs revealed that the prominent DMs in FH, such as 9(S)-HODE, 9,10-EpOME, 13-Oxo-ODE, L-palmitoyl carnitine, and D-fructose, were primarily involved in the endogenous oxidation and degradation of fat and glycogen. Nevertheless, the dominant DMs in LH, such as 2-isopropylmalic acid, indolelactic acid, and hydroxyisocaproic acid, were mainly the microbial metabolites of amino acids and derivates. These findings could help us understand how fat-deficiency affects the nutritional metabolism of Chinese dry-cured hams from a metabolic perspective.

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