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Chitosan Derivatives

Chitosan Oligosaccharide

Chitosan Oligosaccharide

Chitosan Oligosaccharide
1)100% Soluble in water
2)Molecular weight is less than 3000
3)Nearly 100% absorbed
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Product Introduction

Chitosan Oligosaccharide (COS) is kind of oligosaccharide (degree of polymerization<20), also known as chitin oligoes. Chemical name: β-(1,4)-2-azyl-2-deoxy-D-glucan.

It is not the saccharide in common sense and derive from shrimp and crab shells. COS is not generate heat, but it has various physiological activity for applying in various field. COS is a kind of oligose and animal cellulose. COS is the unique alkaline oligosaccharide in natural world


Chemical Formula(C6H11NO4)n
Molecular Weight3000 max. (Da)
AppearanceYellow powder
Insoluble substance1.5% max.
Deacetylation (DAC degree)90.0% min
Moisture10.0% max
Ash1.5% max
Heavy metals [Pb]30ppm max
Arsenic1 ppm max

Product Properties

1)100% Soluble in water

2)Molecular weight is less than3000

3)Nearly 100% absorbed

Technical advantage

1)Degradation by biological enzyme method, advanced technology.

2)Chitosanase has strong activity and higher efficiency of hydrolysis.

3)Enable continuous mass production, annual output of Chitosan oligosaccharide can be more than 50MT.

4)Controlled degree of polymerization can meet clients’ different requirements.

5)Simple technology, Green and environmental protection, Pollution-free, biological degradation, green and safe.

Chitosan oligosaccharide Application/Function

1)COS can be decomposed and used by microorganisms as a plant growth of the culture.

2)COS can change soil microbial flora, promote the growth of beneficial microorganisms and inhibit some plant pathogens.

3)COS can stimulate the growth of plants, so that crops and fruits and vegetables yield a good harvest.

4)COS can induce the disease resistance of plants, and have immune and killing effects on various fungi, bacteria and viruses, which have good prevention and cure effects on wheat mosaic disease, cotton verticillium wilt, rice blast and tomato late blight.

5)COS Has a certain degree of direct inhibitory effect on various plant pathogens.

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