The effects of sodium bicarbonate on conformational changes of natural actomyosin from Pacific white shrimp (Litopenaeus vannamei)

► Sodium bicarbonate was able to induce the dissociation of actomyosin from Pacific white shrimp. ► The dissociation and conformation changes of actomyosin were effectively enhanced with the aid of NaCl. ► Excessive concentration of sodium bicarbonate more likely caused the disruption of muscle filaments.