Abstract: ε-Polylysine with assistant,together with other different antiseptics was used to preseve moon cake crust against spoilage. The results showed that ε-polylysine is good at preserving moon cake crust. Under the experimental circumstance,the optimal concentration of ε-polylysine used solely is 60×10-6,and that of its assistant,citric acid is 0.25%. Through orthogonal test,the compound formula of ε-polylysine with other different antiseptics is optimized as follows:ε-polylysine 40×10-6 with citric acid 0.25%,calcium propionate 1500×10-6,potassium sorbate 200×10-6,natamycin 20×10-6,and EDTA 40×10-6.

Key words: &epsilon, -polylysine； antiseptic； moon cake；