Metabolomics and lipidomics profiles related to intramuscular fat content and flavor precursors between Laiwu and Yorkshire pigs

文献类型： 外文期刊

第一作者： Hou, Xinhua

作者： Hou, Xinhua;Zhang, Run;Yang, Man;Niu, Naiqi;Wu, Junchao;Shu, Ze;Zhang, Pengfei;Shi, Lijun;Zhao, Fuping;Wang, Ligang;Wang, Lixian;Zhang, Longchao

作者机构：

关键词： Pig; IMF; Meat flavor; Metabolomics; Lipidomics

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2023 年 404 卷

页码：

收录情况： SCI

摘要： Chinese indigenous pig breeds have higher intramuscular fat content (IMF) and better meat quality than Western commercial pigs. The differential metabolites and lipids in the skeletal muscle associated with IMF contents and meat flavor in Laiwu and Yorkshire pigs were investigated in this study. As a result, 113 differential metabolites and 54 differential lipids were discovered. Lipidomics revealed that the Laiwu pig had a fast lipid droplet for-mation and contained more triglyceride than the Yorkshire pig, which was corresponded to its high IMF contents. Both the lipidomics and metabolomics results indicated that the Laiwu pig had a higher mitochondrial content and aerobic respiration, due to its larger percentage of oxidative fibers. In addition, differential metabolites, such as oxoglutaric acid, fumarate, and L-aspartate, were thought to be important flavor precursors contributing to the Laiwu pig's improved pork taste.

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