Strategies for replacing phosphates in meat processing

Phosphates are widely used in processed meat products because of their multifunctional technological properties, including enhancing water-holding capacity, improving myofibrillar protein solubilization, stabilizing emulsions, increasing cooking yield, and supporting oxidative stability. These functions make phosphate an essential ingredient in comminuted and whole-muscle meat systems. However, increasing consumer demand for clean-label foods, concerns about the excessive intake of highly bioavailable inorganic phosphates, and sustainability issues related to finite phosphate resources have intensified the interest in phosphate reduction strategies. This review summarizes the physicochemical characteristics and functional roles of phosphates in meat systems, and discusses their potential health implications and regulatory considerations. Furthermore, recent strategies for phosphate reduction have been critically evaluated, including ingredient-based approaches (plant fibers, modified starches, functional proteins, alkaline salts, and enzymatic systems) and processing-based technologies (high-pressure processing, ultrasound, and optimized tumbling). Although no single substitute fully replicates the multifunctional effects of phosphates, integrated or hurdle-based approaches combining multifunctional ingredients with advanced processing technologies show considerable promise. Partial replacement is generally more feasible than complete elimination, particularly for emulsified meat products. Future research should focus on elucidating protein–water interaction mechanisms, developing clean-label multifunctional systems, and validating long-term quality and consumer acceptance. Strategic phosphate reduction is technologically achievable and aligns with global trends toward healthier, sustainable, and clean-label meat products.