Abstract:

In this paper, the body weight and average daily food intake of mice which were reared for 30 d or 90 d were determined in order to optimizate different compound of the bioactive peptides derived from egg white protein which had no effect on body weight changing condition and food intake. The results showed that: no matter the egg white hydrolysates which only hydrolyzed by Alaclase or the high F ratio oligopeptide under through both Alaclase and flavorenzyme, they had no significantly effect on the body weight of mice reared for 30 d and 90 d compared to the blank group (p>0.05). Egg white hydrolysates and the positive control (Tineng soybean peptide)could reduce the average mouse food intake in different degrees, but they had no significantly effect compared to the blank group (p>0.05) in 30 d. Except for 4.5 mg/(g·bw·d), different concentration of high F ratio oligopeptide also had no significantly effect compared to the blank group (p>0.05) at 30 d. During considering the effect of different bioactive peptide from egg white protein on food intake of mice which were reared for 90d, we found that except for the EWPE4, bioactive peptide from egg white protein could significantly decrease the average daily feed intake (p<0.05 or p<0.01).

Key words: bioactive peptide derived from egg whiter protein, food intake, body weight changing condition, significance