数字农科院2.0

Multi-omics analysis of lipids and aroma compounds in beef under grain-fed and grass-fed production methods

文献类型： 外文期刊

作者： Pingyang Li;Yiyu Yin;Shijie Fan;Longzhu Zhou;Huihui Tian;Lupei Zhang;Jing Li;Kehan Ma;Junwei Hu;Yanan Yu;Qingyu Zhao;Youyou Yang;Yahui Wang;Ruiqi Peng;Yanxiang Zhang;Xuemei Gao;Yuchang Qin;Junmin Zhang;Chaohua Tang

作者机构：

关键词： Beef;Grain feeding;Grass feeding;Key aroma compounds;Lipids

期刊名称： Current Research in Food Science

ISSN： 2665-9271

年卷期： 2025 年 11 卷

页码：

收录情况： SCIE（2025版）

摘要： Different production methods for grain-fed and grass-fed cattle affect beef quality and flavor, yet systematic studies on aroma profile differences and the reasons underlying these variations remain limited. This study employed multi-omics analysis to characterize the aroma and lipid profile in grain-fed and grass-fed beef, as well as to identify key lipid molecules and biological pathways linked to aroma formation. Multi-omics analysis revealed that triglycerides (TG (16:0_14:1_18:1), TG (16:0_16:0_18:1), TG (16:0_16:1_18:1), TG (16:0_18:1_18:1), TG (16:0_18:1_18:2), and TG (18:0_16:1_18:1) et al.), diacylglycerols (DG (16:0_18:1) and DG (18:1_18:1)), and free fatty acids (FA (16:1), FA (18:1), FA (18:2), FA (20:3), and FA (20:4)) molecules containing C14:1, C16:1, C18:1, C18:2, C20:3, and C20:4 fatty chains may serve as key precursors to drive distinct aromas in grain-fed and grass-fed beef. These processes are implicated in triglyceride metabolism and fatty acid metabolism pathways and are potentially regulated by DEGs in the PPAR signaling pathway. Specifically, APOA mediates triglyceride transport via lipoprotein secretion, while SLC27A6 enhances intracellular lipid content by promoting long-chain fatty acid uptake. Our results provide a comprehensive understanding of the aroma characteristics and lipid profiles, establishing a theoretical basis for improving beef quality in both grain-fed and grass-fed production methods.

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