chitosan


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chitosan

(kī′tō-săn)
A polysaccharide made of glucosamine, naturally present in the exoskeleton of crustaceans. It resists digestion in the stomach but degrades in the colon. It is used to protect drugs and oral vaccines for controlled release into the gastrointestinal tract.
References in periodicals archive ?
The "Chitin and Chitosan Derivatives - Market Analysis, Trends, and Forecasts" report has been added to ResearchAndMarkets.com's offering.
A spokesman for the firm said: "CuanTec is the first company in the world to achieve biological extraction of chitin from shell at an industrial scale, and this gentle process provides high quality chitin and chitosan, which exhibits high efficacy against a wide range of food spoilage bacteria responsible in food waste.
[UKPRwire, Mon May 20 2019] The report Chitosan provides a complete market outlook and growth rate during the past present and forecast period.
Keywords: Chitosan, Chitosan methacrylate, Biodegradable polymers, Antimicrobial activity, Graft copolymer.
In this work, free-energy calculations were conducted to study the interactions between chitosan and quercetin with water; the chitosan+quercetin was obtained by MDK.
The ability of these nanocomplexes to function as Pickering stabilizers decreased when chitosan concentration increased.
Chitosan and chitin are those of the most abundant polysaccharide compounds found in the nature and they were reported to affect on improving the growth of several crops(Ali et al., 2011).
(25) On this basis, the objective of this study is to examine the effect of additives such as chitosan and nanodiamond on the color stability and surface roughness of bisacrylic resin for temporary restorations subjected to artificial aging.
The polymer chitosan (molecular weight: 190 to 310 kDa, deacetylation degree 75% to 85%, and viscosity of 200 to 800 cp) was also purchased from Sigma-Aldrich, USA.
The ability of chitosan nanoparticle-based HK-1/influenza vaccine candidate to provide protective immunity against influenza virus was evaluated by consideration of both adjuvant and delivery system.
Chitosan biopolymer alone has inferior properties, including low flexibility, brittleness, and fragility (Pavaloiu et al.
There are various chemicals, including ethylene diamine tetraacetic acid (EDTA), citric acid, acetic acid, and, more recently, chitosan, that have been used to remove smear layers (5, 6).