This study investigated the effects of Salvia officinalis extracts on the structural and functional properties of Hypophthalmichthys molitrix myofibrillar protein (MP) stored at 4 ℃. MP was treated with 10 g/L, 20 g/L, and 30 g/L Salvia officinalis extracts, and 1 g/L tea polyphenol and 0.1 g/L dibutylhydroxytoluene (BHT) were used as references. With the prolongation of refrigerating time, the solubility, sulfhydryl content, emulsifying activity index (EAI) and emulsion stability index (ESI), gel hardness and elasticity, water retention capacity as well as whiteness of the MP in all experimental groups gradually decreased, while surface hydrophobicity and carbonyl content gradually increased. The carbonyl content of MP treated with 20 g/L Salvia officinalis extracts was 31.09% lower than that of the control, indicating that it significantly inhibited the oxidation of MP and also promoted the formation of gel to some extent. Therefore, this study reveals that Salvia officinalis can be used as a promising antioxidant.
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