Future trends in using diacylglycerols in the meat sector: emphasizing their synthesis, metabolism, health benefits, and interactions with myofibrillar proteins

With heightened awareness of cardiovascular health and obesity-particularly visceral adiposity-contemporary consumers prioritize dietary lipid quality and quantity. Substituting triacylglycerol (TAG)-based fat sources with diacylglycerol (DAG)-based sources in meat products without compromising the sensory and technological properties can fulfill consumers' demand for healthier meat products. This review delineates the metabolic pathway distinctions between DAGs and TAGs, summarizes the health benefits of DAGs, and documents their synthesis methodologies. Furthermore, it contrasts animal-derived and plant-derived DAGs while examining recent advances in plant-derived DAG emulsions. Building on this foundation, emerging research on the interaction between DAGs and myofibrillar proteins (MPs) positions them as promising fat replacers in meat products, warranting further exploration for effective quality preservation. Application prospects and implementation barriers for DAGs in emulsified meat systems are also examined. Ultimately, this comprehensive analysis offers valuable insights and guidance for developing healthier meat products and advancing the application of DAGs in the food industry.