Chitosan
Character:
It is extracted from chitin, insoluble in water but soluble in dilute acid and absorbed by human body. As the firdt derivate, it's chemical constitution
is macromolecule alkalescent polysaccharide polymer with cation. It has peculiar physical, chemical properties and bioactive function.
Application:

It can mostly be applied in the following industries: texeile, dyeing and
printing, leather, tobacco, plastics, food additive, fodder, pharmaceutics,
color film, paper manufacturing, biological engineering, agriculture protecting and dispose waste water etc.
Index:
　Items Industrial Grade Food
Grade Pharmaceutical Grade High Density Grade
　Appearance White to Light
Yellow Flake Light
Yellow Powder White to Light
Yellow Powder Light
Yellow Powder
Deacetylated
Degree % ≥70 　≥85 　≥90 　≥90
Moisture % ≤12.0 ≤10.0 ≤8.0 ≤8.0
Ash % ≤2.0 ≤1.0 ≤1.0 ≤1.0
Viscosity mpa.s 100-800 ≤100 ≤100 ≤100
Arsenic ppm —— ≤0.5 ≤0.5 ≤0.5
Heavy Metals ppm —— ≤10 ≤10 ≤10
Bulk Density g/ml —— ≥0.3 ≥0.3 ≥0.6
Total Plate
Count cfu/g —— 　≤1000 　≤1000 　≤1000
E.Coli —— Negative Negative Negative
Salmonella —— Negative Negative Negative