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Food / Pharmaceutical Raw Materials Chitosan CAS 9012-76-4 White Powder
Synonyms: POLY(BETA-(1,4)-2-AMINO-2-DEOXY-D-GLUCOSE);POLY(BETA-(1,4)-D-GLUCOSAMINE);POLY(D-GLUCOSAMINE);POLY-(1,4-BETA-D-GLUCOPYRANOSAMINE);POLY-[1->4]-BETA-D-GLUCOSAMINE;BETA-(1,4)-2-AMINO-2-DEOXY-D-GLUCOSE;DEACETYLATED CHITIN;CHITOSAN
Appearance: White powder
Usage: Claimed to have the ability to retain fats and cholesterol in the stomach.
Properties: This product is non-toxic, odorless, off-white or slight yellow powder, and soluble in acid, insoluble in water and base or normal organic solutions.
|Appearance||white or slight yellow powder or flaky|
|Insoluble matter %||≤1.0|
|Degree of substitution %||≥80|
|Heavy Metals ppm||≤10|
Chitosan is refined from deacetylation of chitin which is extracted from deep-sea Alaska crab cods. As the only basic polysaccharide among natural polysaccharides, this product has many physical and chemical characteristics and physiological activities. Precisely, this product can control cholesterol, inhibit bacterial activity, prevent and control high blood pressure, absorb and excrete heavy metals, maintain humidity and strengthen immunity. In food industry, this product can be used as antibacterial agent, fruit and vegetable preservative and antioxidant.
There are many special functional groups in molecular chain, so the chitosan can be manufactured into many products according to different reactions on functional groups, such as acylation, sulfation and oxidation, grafting and crosslinking, hydroxyethylation and hydroxymethylation. These products can be used in many fields, including medicine, food, chemical, cosmetic, water treatment, metal extraction and recovery, biochemical and biomedical engineering. There are many types of chitosan, including GS-chitosan oligosaccharide, high density type, special molecular weight type, medical/food / industrial grade type, water soluble type and specialized type.
Chitosan can inhibit growth and reproduction of fungi, bacteria, and virus. When this product is used as coating preservation, it can inhibit respiratory metabolism and water loss of fruits and vegetables, thus slowing their aging process of organization and structure and effectively extending their postharvest life. This product can also be used as antioxidant. In heating process, free iron ions are released from meat hemoglobin and they form chelates with chitosan, thus their catalytic activity is inhibited.
1. Agricultural and horticultural use: The agricultural and horticultural uses for chitosan, primarily for plant defense and yield increase, are based on how this glucosamine polymer influences the biochemistry and molecular biology of the plant cell. The cellular targets are the plasma membrane and nuclear chromatin. Subsequent changes occur in cell membranes, chromatin, DNA, calcium, MAP Kinase, oxidative burst, reactive oxygen species, callose pathogenesis-related (PR) genes and phytoalexins.
2. Natural biocontrol and elicitor use: In agriculture, chitosan is used primarily as a natural seed treatment and plant growth enhancer, and as an ecologically friendly biopesticide substance that boosts the innate ability of plants to defend themselves against fungal infections. The natural biocontrol active ingredients, chitin/chitosan, are found in the shells of crustaceans, such as lobsters, crabs, and shrimp, and many other organisms, including insects and fungi. It is one of the most abundant biodegradable materials in the world.
3. Commercial and possible biomedical uses: It can be used in agriculture as a seed treatment and biopesticide, helping plants to fight off fungal infections. In winemaking it can be used as a fining agent, also helping to prevent spoilage. In industry, it can be used in a self-healing polyurethane paint coating. In medicine, it may be useful in bandages to reduce bleeding and as an antibacterial agent; it can also be used to help deliver drugs through the skin.
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