Chitosan Oligosaccharide (Synonyms: Deacetylated chitin; Poly(D-glucosamine);)

Chitosan is a non-toxic, semi crystalline, biodegradable, and biocompatible linear amino polysaccharide, which is a random copolymer formed by linking N-acetylglucosamine (NAG) and glucosamine units. It is usually obtained by partial deacetylation of natural chitin (chitin) under relatively high temperature and alkaline conditions. The application of chitosan is very extensive, including 1) the advantages of biocompatibility and degradability of chitosan in the field of biomedicine, which make it widely used in biomedicine, including as a scaffold for tissue engineering. For example, the three-dimensional porous structure of chitosan allows it to accommodate sensitive bioactive ingredients including growth factors; The hemostatic and antibacterial properties of chitosan make it a practical wound dressing, especially as these inherent characteristics limit the risk of infection and enhance skin regeneration ability; The hydrophilicity of chitosan makes it particularly suitable for use as a starting material for biodegradable and biocompatible hydrogels. The mechanical properties of pH sensitive hydrogels can be adjusted by combining chitosan and simple addition of hydroxyapatite to meet specific application requirements. 2) Chitosan has been successfully applied in the development of drug carriers (controllable release drugs) in the pharmaceutical field. One of the common studies on this function in gene therapy is the encapsulation of DNA or RNA by chitosan. This product is oligochitosan, also known as chitooligosaccharides, obtained from deep-sea cod crabs through enzymatic degradation. Chitosan oligosaccharides are alkaline, positively charged, water-soluble, and animal like fibrous oligosaccharides found in nature. They are small molecular polymers composed of 2-10 glucosamine groups connected by β -1,4-glycosidic bonds. This product is provided in powder form and is of biotechnology grade.
Product Characteristics Synonym: Oligochitosan Oligosaccharides Appearance: Light yellow powder Average molecular weight: 800-1000Da Water insoluble matter: ≤ 0.1% Drying loss: ≤ 8.0% Burning residue: ≤ 0.8% pH: 5.0-7.0 Deacetylation degree: ≥ 93% Particle size: ≥ 150 mesh Density: ≥ 0.40 Total bacterial count: ≤ 100 CFU/g Pathogenic bacteria: No detected heavy metals (calculated as Pb): ≤ 0.5 (ppm) Total arsenic: ≤ 0.5 (ppm)