Chitosan Raw Materials Chitosan Powder

CAS:9012-76-4

MF:C6H11NO4X2

MW:161.16

EINECS:618-480-0

Specification: 99% min Chitosan Powder

Sample:Chitosan Powder

Packaging:1kg/bag, 25kg/drum

Brand: Henrikang

Appearance:White

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Chitosan Powder Usage and Synthesis.

Chitosan has a wide range of antibacterial effect, but different concentrations of chitosan its antibacterial ability is not the same, such as chitosan concentration of 0.1%, within 8d can make the reproduction of a variety of molds in the genus Fusarium completely inhibited, but the concentration of the genus Rhizopus, Penicillium, Aspergillus and other molds do not have the effect.

At a concentration of 0.4%, it had a strong inhibitory effect on Escherichia coli, Proteus vulgaris, Bacillus subtilis and Staphylococcus aureus.

In addition, the antimicrobial properties of chitosan with different degrees of deacylation are different, and the high degree of deacylation of chitosan has strong antimicrobial power. of chitosan has strong antimycobacterial power. One of the reasons is that chitosan interacts with the surface layer of mold cells to increase cell permeability. Chitosan and sodium acetate, adipic acid formulated preservatives antimicrobial effect is more obvious, and does not affect the flavor of food.

Chitosan's antibacterial effect mainly has the following two mechanisms: one is chitosan by adsorption on the cell surface, the formation of a layer of polymer membrane, preventing the transportation of nutrients to the cell, thus playing a bacteriostatic role; another mechanism is chitosan through the infiltration into the cell body, adsorption of anions with anionic cytoplasm within the cell body and flocculation occurs, disrupting normal physiological activities of the cell, thus killing bacteria. The mechanism of chitosan is that chitosan adsorbs the anionic cytoplasm of the cell and flocculation occurs, disrupting the normal physiological activity of the cell, thus killing the bacteria.

Because the cell wall structure of Gram-positive bacteria and Gram-negative bacteria is different, the two effects have different degrees of influence on them, so different relative molecular mass of chitosan, its antibacterial mechanism is different.

Uses of Chitosan.

It is mainly used in food, medicine, agricultural seeds, daily chemicals, industrial wastewater treatment and other industries. Chitosan has the effect of improving immunity, activating cells, preventing cancer, lowering blood lipids, lowering blood pressure, anti-aging, regulating the environment of the organism, etc. It can be used in the field of medicine, health care and food. In the field of environmental protection, chitosan can be used in sewage treatment, protein recycling, water purification and so on.

In the field of functional materials, chitosan can be used in membrane materials, carriers, adsorbents, fibers, medical materials and so on. In the field of light textile, chitosan can be used in fabric finishing, health care underwear, papermaking auxiliaries and so on. In the field of agriculture, chitosan can be applied to feed additive, seed treatment, soil improvement, fruit preservation, etc.

In the field of tobacco, chitosan is a good performance tobacco flake gum, and has the characteristics of improving taste, burning non-toxic and odorless.

Chitosan is a biocompatible, anti-bacterial and biodegradable polyelectrolyte with a wide range of biomedical and industrial applications.

Its chemical properties and low toxicity allow it to be used as a component of drugs, in gene transfer systems, as a biodegradable membrane and as a skeleton in tissue engineering.

Physiological effect of Bulk Chitosan Powder.

Chitosan is a kind of dietary fiber, which has the effect of lowering serum cholesterol, regulating intestinal flora and lowering blood pressure. After the human body ingests chitosan, fecal analysis shows that it is hardly digested and absorbed, so it belongs to a kind of dietary fiber.

Research shows that chitosan has some of the characteristics of dietary fiber, such as water retention, expansion, adsorption and difficult to digest and absorb, etc., can promote peristalsis in the digestive tract, adsorption of toxic substances, increase the volume of defecation, reduce the abdominal pressure and intraintestinal pressure, improve constipation, prevention of colorectal cancer and so on.

Chitosan and gastric mucin have similar physicochemical effects, with inhibition of gastric acid, anti-gastric ulcers, anti-inflammatory effects, it is an anti-gastric acid polysaccharides, swelling and development of viscous plasma in contact with water and adhesion, in the stomach can form a protective film, in order to reduce the stimulation of gastric acid on the ulcer surface.

Food safety: When the dose of chitosan fed to animals reaches 20% of the feed, there are reports of animal deaths. It is analyzed that this is due to the high concentration of chitosan in the animal viscera to form a gel, inhibiting the animal's nutrient absorption.

At present, it is necessary to systematically study the physiological role of chitosan high-viscosity macromolecules and low-viscosity macromolecules, and it is also necessary to make further long-term chronic tests on the safety, toxicology and metabolism of chitosan from a clear source.

Product Methods of Chitosan.

20g of chitin was added to 300mL of 50% NaOH solution, completely infiltrated and then heated and held at 95°C for 1.5h, filtered off the alkaline solution, washed with water to neutrality, and dried at low temperature to obtain 15.6g of colorless and transparent flaky product.