Chitosan Oligosaccharide

Characteristic

Chitosan oligosaccharide (COS) is the major degradation product of chitosan/chitin via chemical hydrolysis or enzymatic degradation involving deacetylation and depolymerization processes. Compared to chitosan and chitin, COS is characterized by low molecular weight, high degree of deacetylation and high degree of polymerization. Furthermore, COS has better solubility and lower viscosity under physiological conditions because of its shorter chain length and the free amino group in the D-glucosamine unit. Studies have shown that these properties of COS have important applications in the biomedical, pharmaceutical, and agricultural fields.

Specification

Item	Food Grade	Feed Grade	Agricultural Grade
Catalog Number	MC003	MC003	MC003
Molecular Formula	(C₆H₁₁NO₄)_n (n=2~20)	(C₆H₁₁NO₄)_n (n=2~20)	(C₆H₁₁NO₄)_n (n=2~20)
Appearance	Light yellow powder	Light yellow powder	Yellow or tawny powder
Average Molecular Weight	≤1500 Da	≤3000 Da	≤3000 Da
Deacetylation Degree	85%, 90%, 95%	80%, 85%, 90%	80%, 85%, 90%
Grain Size	Customized	Customized	Customized
Content	≥90%	≥85%	≥85%
Moisture	≤10%	≤10%	≤10%
Ash	≤1%	≤2%	≤2%
Water Insoluble	≤1%	≤1%	≤1%
pH	5.0-7.0	5.0-7.0	5.0-7.0
Arsenic (As)	≤0.5 ppm	≤1 ppm	≤0.5 ppm
Total Plate Count	≤1000 CFU/g	≤1000 CFU/g	≤1000 CFU/g
Pathogenic Bacteria	Negative	Negative	Negative

Note: The parameters of the product can be adjusted according to your requirements.

Applications

Food industry
- COS can be used as a natural preservative for food products to replace sodium benzoate and other chemical preservatives.
- COS can be used as an active agent for intestinal probiotics such as bifidobacteria in dairy products to enhance the absorption of calcium and minerals.

Food industry

Feed industry

Feed industry

COS can be used in the feed of poultry such as pigs, cattle and sheep or aquatic animals such as fish, shrimps and crabs to promote their growth and improve their immunity.
COS selectively activates and promotes the growth of beneficial bacteria in the animal intestine, thus helping to regulate microbial metabolic activity in the animal intestine.
COS has strong adsorption properties. It adsorbs harmful heavy metals from the animal's body, thus reducing damage to organs such as the liver from harmful metals.

Agricultural industry
- COS helps to accelerate the growth and development of plant roots, stems, leaves and fruits, and increase crop yield.
- COS protects against diseases caused by fungi, bacteria and viruses such as mosaic disease, leaf blight, yellow dwarf disease and fusarium wilt.
- COS helps to promote germination of crop seeds. Cucumber seeds treated with COS showed a significant increase in germination rate and germination index.
- In cold, drought and high salt environments, COS stabilizes the cell membrane structure of crops, increases their ability to absorb and retain water, promotes photosynthesis and improves their resistance to stress.

Agricultural industry

Pharmaceutical industry

Pharmaceutical industry

COS has important biological properties such as antioxidant, anti-inflammatory, anti-hypertensive, and drug/DNA delivery capabilities. These properties allow it to be used not only as an aid in the treatment of diseases such as diabetes, hypertension, cancer and obesity, but also to improve the body's immune system.

Choose Alfa Chemistry

As a first-class supplier of marine biomaterials, we have experienced experts and professional R & D laboratories. We have the ability to offer our customers high quality COS. According to your requirements, we can also customize products with different grain sizes for you. If you would like more information, please feel free to contact us.

For Research Use Only. Not for use in diagnostic or therapeutic procedures.