Optimization of extraction conditions of duck breast salt-soluble protein based on response surface methodology

To optimize the extraction condition for the duck breast salt-soluble meat protein (SSMP) , the optimize extraction condition was as follows:extraction solution pH of 7.7, extraction solution concentration of NaCl was 0.5mol/L, material to water ratio at 1∶5.2 (g/mL) , and extraction-duration of 12.3h, on the basis of the single factor tests.The duck breast salt soluble protein extraction rate could reach 19.9%, and the theory predicted value (20.4%) differs by 2.5%.This paper provided a certain theoretical basis on the extraction for the duck breast salt-soluble meat protein.