
Chitosan material product specification
The main properties;
of Chitosan product specifications are following;
- Degree of Deacetylation (%DD)
- Molecular Weight (MW)
- Viscosity
- Raw material source (the shells of sea creatures (Crustacea Malacostraca)) / Alpha and Beta type Chitosan .
These of (1) %DD, (2) MW, (3) Viscosity , and (4) raw material sources are key factors of the active or main functions of the Chitosan application or the final product
The other significant product properties;
of Chitosan product specifications are heavy metals, microbiological factors, Ash content, bulk density / tapped density, solubility, turbidity, and moisture
Chitosan grade
All properties of Chitosan material product specification combined are identified to the Chitosan grade
- Food grade / dietary supplement grade
- Medical device grade / Pharma grade
- Agricultural use (grade)
- Industrial use (grade)
Chitosan material product specs category, which is based for the applications
Product variance matrix by %DD : Molecular Weight or Viscosity : Sources
- High, Medium, and Low (cPs) Viscosity
- High, Medium, and Low (kDa) Molecular Weight (MW)
- 3 ranges of Degree of Deacetylation %DD (less than 80, between 80-90, more than 90)
- Sources (blue crab shells, Snow crab shells , Shrimp shells,Squid pen)


Source / Type (Alpha and Beta ) Chitosan
Shrimp shells
Crab shells (Crab, Asian, Portunus pelagicus / blue swimming crab)
Crab shells (Crab, Alaskan, Chionoecetes opilio)
Squid pen (Todarodes pacificus or equiv)
Raw materials, snow crab (Opilio crab and Alaska/King crab) shells from our GMP food processing factory
Molecular Weight (MW) Chitosan
High MW more than 2000 kDa, 2000-1000 kDa
1000-500 kDa
500-200 kDa
200-80 kDa
80-30 kDa
Low MW less than 30 (30-10)
Viscosity (solution 1.0%) Chitosan
High viscosity Chitosan , 4000-2000 cPs, 2000-1000 cPs
900-600 cPs
600-300 cPs
300-100 cPs
100-20 cPs
Low viscosity Chitosan less than 10 cPs (~ 5 cPs)
Degree of Deactylation (%DD) Chitosan
More than 90
90 - 80
Less than 80