Plasma Metabolomic Profiling Reveals Preliminary Biomarkers of Pork Quality Based on pH Value
Author:
Shen Linyuan, Ma JianfengORCID, Zhou Haodi, Chen Lei, Tang Jie, Zhang Kaige, Zhao Ye, Niu Lili, Zhang Shunhua, Jiang Anan, Wang Jinyong, Guo Zongyi, Li Xuewei, Chen Yiwu, Gan Mailin, Zhu Li
Abstract
This study aimed to identify biomarkers for pork quality evaluation. Firstly, the correlation between indicators of pork quality evaluation was investigated. The pH of pork meat at 45 min post slaughter showed a significant negative correlation with meat color indicators (r: −0.4868–−0.3040). Subsequently, porcine plasma samples were further divided into low pH (pH = 6.16 ± 0.22) or high pH (pH = 6.75 ± 0.08) groups. Plasma metabolites in both sample groups were investigated using untargeted metabolomics. In total, 90 metabolites were recognized as differential metabolites using partial least squares discriminant analysis. Pathway enrichment analysis indicated these differential metabolites were enriched in amino acid metabolism and energy metabolism. Correlation analysis revealed that creatinine, L-carnitine, D-sphingosine, citraconic acid, and other metabolites may constitute novel plasma biomarkers with the pH value of pork meat. The current study provides important insights into plasma biomarkers for predicting pork quality based on pH value.
Funder
National Key Research and Development Program of China Sichuan Science and Technology Program Chongqing Scientific Research Institution Performance incentive project National Center of Technology Innovation for pigs
Subject
Plant Science,Health Professions (miscellaneous),Health (social science),Microbiology,Food Science
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