Abstract:Alkali-induced irreversible gel was prepared by adding sodium hydroxide（NaOH）to the egg albumin which was used as a raw material.On the basis of single-factor experiment，the response surface methodology was used to optimize the conditions of gelatinization induced by egg albumin，in which the NaOH concentration，gelation temperature and gelation time were used as independent variables，and the gel strength was used as the responsevalue.The results showed that sodium hydroxide could be added to egg albumin to prepare alkali-induced irreversible gel.the optimal conditions for egg albumin alkali-induced gelation were obtained as follow through establishment of regression model，sodium hydroxide concentration of 0.8%，gelation temperature at 42℃and the gelation time of 4 h.Under these gelation conditions，the predictive value of gel strength of egg albumin value was 0.936 kgf and the validation value was 0.933 kgf.The two values were similar，which suggests that the optimization results were reliable.