Ke et al. [67] investigated the impact of citric acid on the tenderness, microstructure and oxidative stability of beef muscle. They initially reduced raw beef muscle pH with citric acid below the post-mortem pH (pH 5.5–3.5) to alter texture, followed by an increase in pH to reduce sourness while leaving citric acid in the muscle to inhibit lipid oxidation. Decreasing pH in beef with citric acid did not result in an increase in lipid oxidation rates when the beef was cooked.