Preparation of Chicken Embryo Peptide Zinc Chelate and Its Immunoregulatory Function

Chicken embryo peptide was prepared from chicken embryo egg by step enzymolysis. Taking the chelation rate and the yield of chelate as the indexes, the single factor experiment and response surface method were used to optimize the preparation of chicken embryo peptide zinc chelate. The results showed that, under the condition of chelating temperature 70℃, concentration ratio of chicken embryo peptide to Zn⁺ 2.3:1, pH8 and chelating time 2.2 h, the chelating rate of chicken embryo peptide and zinc element was the highest (48.98%±0.35%), the chelating rate was 38.04%±0.26%, the yield was high and stable. It could increase the mass index of thymus and spleen obviously, which showed that the chelate of chicken embryo peptide and zinc had a certain immune regulation function and a certain dose effect relationship. Chicken embryo peptide zinc chelate had certain development and utilization value in the immune function of food derived chelate peptide.