Physical characteristics: It's off white amorphous translucent
flake or powder with pearly color. Insoluble in water or
alkali solution, soluble in inorganic acid like diluted
hydrochloric acid and nitric acid etc. and most organic
acid. In diluted acid solution, backbone chain of
chitosan will hydrolyze slowly. There are of 
, 
and 
three
crystallographic forms.
Edible chitosan by our company is made from no polluted
Alaska deep-sea crab shell with the processing
techniques of decalcification, deproteinization,
decolorization and deacetylation etc. Of nice appearance
and excellent quality, it's the optimal choice for
medicine, health care products, food and beverage etc.
In medicine and healthcare field, chitosan is widely
applied for its multi-function of improving immunity,
activating cells, preventing cancer, decreasing blood
fat and blood pressure, adjusting blood sugar, fighting
against aging and adjusting organism environment etc.
In environment protection field, chitosan can be
applied in waste water disposal, protein recycle and
water purification.
In functional material field, chitosan can be applied
in membrane material, carrier, sorbet, fiber and medical
materials etc.
In light textile field, chitosan can be applied in
fabric sorting, healthcare underwear and paper making
additives.
In agriculture field, chitosan can be applied in
feedstuff additive, seed disposal, soil amelioration and
fruit refresh-keeping etc.
In tobacco field, for its characteristics of improving
taste, non-poisonous and odorless burning, chitosan can
be applied as tobacco slice glue.
Chitosan structure
Poly (1, 4-2-armino-2-deoxy-ß-D-glucosamine)
Edible chitosan/ Industrial chitosan
|
Specifications |
Edible Chitosan |
Industrial Chitosan |
|
Appearance |
Off white |
Off white or grey or yellow |
|
Granularity |
Powder or flake |
Powder or flake |
|
Deacetylation degree |
 80%
85%; 90%; 95% |
80%
85%; 90%; 95% |
|
Viscosity (CPS) 1%)in acetic acid |
30-1000 |
30-2000 |
|
Molecular weight |
10,000 – 2,500,000 |
10,000 – 2,500,000 |
|
Moisture content |
 10% |
10% |
|
Ash content |
1.0% |
2.0% |
|
Insoluble |
1.0% |
2.0% |
|
PH(1%) |
7-9 |
7-9 |
|
Heavy Metals; |
|
|
|
Arsenic |
< 0.5 ppm |
< 0.5 ppm |
|
Cadmium |
< 0.3 ppm |
< 0.3 ppm |
|
Lead |
< 0.3 ppm |
< 0.3 ppm |
|
Mercury |
< 0.005 ppm |
< 0.005 ppm |
|
Microbiological; |
|
|
|
Total Plate Count |
< 1000 CFU/g |
NA |
|
Yeast & Mold |
< 100 CFU/g |
NA |
|
Coliform |
< 10 CFU/g |
NA |
|
E. Coli |
Negative cfu/g |
NA |
|
Staph. aureus |
Negative
cfu/g |
NA |
|
Salmonella |
Negative
cfu/g |
NA |
|
Listeria |
Negative cfu/g |
NA |
|
Pseudomonas |
Negative cfu/g |
NA |
|
source |
no polluted Alaska deep-sea crab shell,
Crab shell, Squid pen, Shrimp shell |
