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Chitosan is produced commercially by deacetylation of chitin (can be produced from chitin also), which is the structural element in the exoskeleton of crustaceans (crabs, shrimp, etc.). The degree of deacetylation (%DA) can be determined by NMR spectroscopy, and the %DA in commercial chitosans is in the range 60-100 %.
Commercial chitosan is derived from the shells of shrimp and other sea crustaceans, including Pandalus borealis, pictured here. Pandalus borealis (also called Pandalus eous) is a species of shrimp found in cold parts of the Atlantic and Pacific Oceans. Many different English names are used, with little consensus (deep-water shrimp, cold-water shrimp, northern shrimp, Alaskan pink shrimp, pink shrimp, northern red shrimp).
Chitosan's properties allow it to rapidly clot blood, and has recently gained approval in the USA for use in bandages. The bandages include a layer of carefully produced chitosan that, when applied to a wound, causes rapid clotting, stopping the bleeding. Chitosan is hypoallergenic, and has natural anti-bacterial properties, further supporting its use in field bandages.
 Chitosan
| Code | Product Name | Specification | | CT-101 | Chitosan Industrial grade | Deacetylation >75%, Ash<.2.0%, Moisture<.12.0% | | CT-102 | Chitosan Food grade | Deacetylation >90%, Ash<1.0%, Moisture<10.0% | | CT-103 | Chitosan Medical grade | Deacetylation >95%, Ash<.0.5%, Moisture<.10.0% | | CT-104 | Chitosan Oligosaccaride Acid | MW 7-10KDa; soluable in weak acid
Deacetylation >95%, Ash<.0.5%, Moisture<.10.0%, | | CT-105 | Chitosan
High-Density | Bulk density > 0.6g/ml,
Deacetylation >85%, Ash <.1.0%, Moisture | | CT-106 | Chitosan -
Sodium Acety | Carboylation Degree >60%, Deacetylation >90%,
Viscosity 50-150mpa.s (1% water solution); water soluable | | CT-107 | Chitosan
N.O-Carboxymethyl | Carboylation Degree >60%, Deacetylation >90%,
Viscosity 50-150mpa.s (1% water solution); water soluable | | CT-108 | Chitosan -
Hyaluronic Acid | Easily soluable in water at ordinary temperature,
Viscosity 50-150mpa.s (1% water solution) | | CT-109 | Chitosan -
Lactate Salt | Water-absorbing capacity: 40-50 times (v/v),
Water-absorbing rate: 20second | | CT-110 | D-Glucosamine HCl | Conform to USP28 | | CT-111 | D-Glucosamine
Sulfate Potassium | Assay 96.0-104.0%, specific rotation 52° | | CT-112 | D-Glucosamine
Sulfate Sodium | Assay 96.0-104.0%, specific rotation 54° | | CT-113 | N-Acetyl-D-Glucosamine | Assay > 98.0%, specific rotation 41° |
 Chitosan-rich shrimps (Sergia Lucens Hansen)
| Code | Name | Figure | Qty | | CRS-001 | Chitosan-rich shrimp |  | 100g | | CRS-002 | Chitosan-rich shrimp |  | 100g | | CRS-003 | Chitosan-rich shrimp |  | 100g | | CRS-004 | Chitosan-rich shrimp |  | 100g | | CRS-005 | Chitosan-rich shrimp |  | 100g |
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