The main properties of Chitosan product specifications

    • Degree of Deacetylation (%DD): more than 90 / 90-80 / less than 80 (80-70)
    • Molecular Weight (MW) (kDa) :More than 1000 / 1000-500 / 500-125 / 125-80 / 80-30 / 30-10
    • Viscosity @1.0 % solution (cPs): 1000 - 600 / 600 - 300 / 300 -100 / 100-20 / less than 20
    • Sources of raw materials:non-pollution of snow crab shells  
    • Particle size (mesh size): the powder form of Chitosan products avilable between 40-150 mesh
    • The other properties of Chitosan product specifications

Color Yellow/yellow white/White off
Odor odorless
Ash less than 1.0 %
Moisture content less than 10 %
Tapped density (g/ml) : 0.30-0.40, 0.40-0.50 and 0.50-0.60
Turbidity less than 30 NTU
Insoluble less than 1.0%
pH (1% aqueous dispersion) 6.5 – 7.5

 

The other significant product properties of Chitosan product specifications idenfyfied for food;

    • Heavy metals

Arsenic not more than 0.5 ppm

Lead not more than 0.3 ppm

Cadmium not more than  0.5 ppm

Mercury not more than  0.1 ppm

    • Microbiological

Aerobic Plate Count not more than 1000 cfu/g

Yeast & Mold not more than 1000 cfu/g

E.coli Not detected/1g

Staphylococcus aureus Not detected/1g

Salmonella spp. Not detected/25g

Listeria spp. Not detected/25g

Pseudomonas Not detected/25g

    • Other

Melamine not more than 2.5 mg /kg

Benzo(a)pyrene not more than 5.0 μg/kg (wet weight)