chitin


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Related to chitin: Chitosan

chitin

 [ki´tin]
a horny polysaccharide, the principal constituent of shells of arthropods and shards of beetles, and found in certain fungi.

chi·tin

(kī'tin),
A linear polymer of N-acetyl-d-glucosamine, linked β(1→4), similar in structure to cellulose; the second most abundant polysaccharide in nature, comprising the horny substance in the exoskeleton of beetles, crabs, and certain microorganisms, as well as in some plants and fungi.

chitin

(kīt′n)
n.
A nitrogen-containing polysaccharide that is a tough, protective, semitransparent substance and is the principal component of arthropod exoskeletons and the cell walls of certain fungi.

chi′tin·ous adj.

chi·tin

(kī'tin)
A polymer of N-acetyl-d-glucosamine similar in structure to cellulose and the second most abundant polysaccharide in nature, comprising the horny substance in the exoskeleton of beetles, crabs, certain microorganisms, and other life forms.

chitin

A carbohydrate polymer (polysaccharide) found in worms, insects, crustaceans and fungi but not in mammals. Mammalian chitinases, however, exist and one has been implicated in allergic ASTHMA. Neutralization of this enzyme reduces airway inflammation and hyper-responsiveness.

chitin

a linear POLYSACCHARIDE containing β(1---->4)-linked N -acetylglucosamine units, that has considerable strength because of its long fibrous molecules. It is resistant to chemicals and is found in the cuticle of insects and some other arthropods where the outer parts are impregnated with tanned proteins which gives it added strength. It is also found in the cell walls of most FUNGI, in certain DIATOMS and certain protozoa.
References in periodicals archive ?
New Study Reports Wiseguyreports.Com adds "Chitin and Chitin Derivatives Market 2019 Global Industry Sales, Supply, Consumption, Demand, Analysis and Forecasts to 2025" To Its Research Database.
If the chitin wall around salivary ducts can be fortified, infections may be thwarted.
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.
Chitin is an essential structural component of the fungal cell wall and is also present in the exoskeleton of arthropods and the micro-filarial sheath of nematodes.
The precipitate (chitin fraction) was dried at 60[degrees]C and stored in an airtight container at 2-4[degrees]C until use (11).
This work was aimed at evaluating the effect of chitin source on characteristics of the obtained chitin nanocrystals and on a possibility to use them as stabilizing agents for fabrication of core-shell poly(L,L-lactide)/chitin microparticles via the Pickering emulsion solvent evaporation technique.
Chitin, a [beta]- [1-4] homopolymer of N-acetyl - D- glucosamine (Glc NAc), is the second most abundant polysaccharide existing in nature after cellulose.
Chitosan was prepared by deacetylation of chitin, which is naturally found in crab exoskeleton.
Shrimp shells are composed of the biopolymer chitin aimd proteins, minerals and carotenoid pigments, constituents that once extracted from the residue can be availed.
diet, growth, fiber, chitin, cellulose, recirculating, lecithin, menhaden oil
Cellulose nanofibers (CNFs) and chitin nanofibers (CHNFs) have attracted the attention of researches as additives in the green nanocomposites field because they are biodegradable and renewable polymers with good mechanical properties.