Test items Standard Result
Appearance White powder White powder
Hyaluronic acid í²95% 99.5%
Glucuronic acid í²42% 43%
Molecular weight í²1.0 x 106 1.35 x 106
Ph 6.0-7.5 6.8
Solution transmittance í²99.0% Complies
Loss on drying <10% 9.2%
Particle size 0.15-0.25 Complies
Protein ín0.1% 0.05%
Heavy metal <10ppm Complies
Bacterial counts <100cfu/g Complies
Mold and yeast <10cfu/g Complies
Staphylococcus aureus Can not be checkout
Chlorop seu domonas Can not be checkout
Shelf life Two years
Conclusion The results meet the standard
Foil bag/kg, fiber drum/25kg