Characterization of lipids in Guangdong small-ear spotted pig and their crossbreeds during cold storage revealed by LC-MS-based method
文献类型： 外文期刊
作者： Huang, Wenyi 1 ; Li, Linfeng 1 ; Wang, Pan 1 ; Liu, Huilin 1 ; Liu, Midi 1 ; Meng, Fanming 1 ; Cheng, Leiyan 1 ; Zeng, Jianhua 2 ; Yang, Linfang 2 ; Hu, Bin 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci, State Key Lab Swine & Poultry Breeding Ind, Guangdong Key Lab Anim Breeding & Nutr, Guangzhou 510000, Peoples R China
2.Guangdong Yihao Foodstuff Co Ltd, Guangzhou 510000, Peoples R China
关键词： Pork; Cold storage; Lipidomics; Differential lipids; Meat quality
期刊名称：JOURNAL OF FOOD COMPOSITION AND ANALYSIS （ 影响因子：4.6； 五年影响因子：4.6 ）
ISSN： 0889-1575
年卷期： 2025 年 143 卷
页码：
收录情况： SCI
摘要： Cold storage is a common storage and transportation method for pork, and the change of lipid molecules in meat during cold storage is an important factor affecting the quality of meat. In this study, liquid chromatography-mass spectrometry (LC-MS) was employed to analyze and compare the lipid changes and differences in the longissimus dorsi of DuHei pig (DurocxYihao Black pig, DH), Duhua pig (DurocxGuangdong small-ear spotted pig, Dh), and Guangdong small-ear spotted pig (HZ) at 45 minutes, 1 day, 3 days, and 7 days during cold storage (4 degrees C). A total of 1993, 2071, and 1719 lipid molecules were identified from DH, Dh, and HZ, respectively. The longissimus dorsi of DH, Dh, and HZ exhibited similar characteristics in overall lipid composition, with the top 10 lipid subclasses enriched in TG, PC, PE, Hex1Cer, Cer, MePC, DG, CL, SM, and dMePE. During cold storage, the differential lipid subclasses were predominantly enriched in TG, PC, and PE. Phosphatidylethanolamine (PE) containing C16:0/C16:1 demonstrated a significant increase in relative abundance after 3 days, suggesting its potential as an indicator of the duration of meat cold storage and a biomarker for assessing the freshness meat products. The changes in relative abundance, structural characteristics, and functional enrichment analysis of differential lipids indicated that DH may possess superior storage stability compared to Dh and HZ. This study offers new insights into the molecular changes of lipids in Chinese indigenous and hybrid pig pork during cold storage.
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