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Updated: May 13, 2026

A RAPID Method for Blood Processing to Increase the Yield of Plasma Peptide Levels in Human Blood
Published on: April 28, 2016
[Study on the processing technique of enzyme hydrolysis Eupolyphaga sinensis peptide and innunoregulatory effect]
Dan Liu1, Xing-nuan Li, Zhong-jun Qin
1Basic Medical Collage of Jiujiang University, Jiujiang 332000, China.
Objective:
Using papain to prepare polypeptide from Eupolyphaga sinensis, then study the immune function of polypeptide from Eupolyphaga sinensis in vivo.
Methods:
Used hydrolysis degree as index, pH value, enzyme dosage, thermometer reaction time were optimized. Studied the influence of polyeptide on the mice immune functions through mice immune organs index, phagocytic function and the level of IL-2.
Results:
The optimum enzymolysis condition was as follows: pH 8.0, enzyme 1%, temperature 55 degrees C, reaction time 4. 5 h. In vivo test of mice demonstraed that, Eupolyphaga sinensis could elevate index of thymus and spleen, enhance the phagocytic function of macrophage and promote the level of IL-2 in serum.
Conclusion:
Eupolyphaga sinensis has immunoregulatory effect.

