has produced medical hyaluronic acid (HA) by fermentation method through strain cultivation, improvement on formulation of fermentation material and technology, optimizing purification process and equipment, improvement on powder preparation process and equipment and transforming production environment.

Experiment on the cytotoxicity of medical sodium hyaluronate;

Study on Biocompatibility of Medical Used Zinc Hyaluronate Fluid;

Medical sodium hyaluronate gelatin can protect articular cartilage and relieve pain,and no adverse reaction was observed.

Study on degradation methods and conditions of hyaluronic acid;

Reaction conditions of hyaluronic acid hydrolysis catalyzed by hyaluronidase;

Study on fermentation preparation of hyaluronic acid by Streptococucus zooepidemics NW-162;

The effects of culture and fermentation conditions on the fermentation of hyaluronic acid(HA) produced by Streptococcus zooepidemicus were studied.

Methods\ Glycosaminoglycan(GAG) and Hyaluronic Acid(HA) of the wounded tissue and normal skin from the fetal,maternal and adult rabbits were measured using the techniques of chromatometry and electrophoresis.