Appearance: white or almost white powder
Sodium hyaluronate (dry basis): 90%-105%
Glucuronic acid:nlt42.0%
Ph(0.1% water solution) :6.0-7.5
Molecular weight:(0.8- 2.0)*106
Protein:nmt0.1%
Transparency (0.1% solution): nlt 99% loss on drying: nmt 10.0%
Heavy metals (as pb): nmt 20ppm
Arsenic nmt 2ppm
Bacteria count: nmt 100cfu/g
Mold & yeast: nmt 10cfu/g
Pseudomonas aeruginosa: negative
Staphylococcus aureus: negative.
5kg/drum.
Natural astaxanthin.
Appearance: white crystalline powder
Assay: 98.0%-102.0%
Specific rotation: +84.0¡ã~ +87.5¡ã
Moisture: 2.0% max
Ph of 10% aqueous solution: 5~8
Methanol0.1% max
Arsenic(as): 3mg/kg max
Lead: 1mg/kg max
Copper: 10mg/kg max
Iron:10mg/kg max
Ignited residue:0.7% max hydrolysis products: 0.1% max
Related substance: 0.5% max
Heavy metal10mg/kg max
Triphenylph
Osphine oxide: 150mg/kg max
Total aerobic
Count: 250cfu/g max
E.Coli: mpn/g<3.0
S.Aureus: negative
Salmonella: negative
Yeasts & moulds: 50CFU/g max.
25kg/kg
