A Review of Various Sources of Chitin and Chitosan in Nature

Chitin was first discovered by its name from the Greek word “chiton”, which means “mail coat”. It is indeed a polysaccharide made up of naturally occurring acetyl-D-glucosamine monomers. Hatchett was the first researcher who extracted chitin from the shells of mollusks (crabs and lobsters), prawns,...

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Bibliographic Details
Published in:Journal of renewable materials 2022, Vol.10 (4), p.1097-1123
Main Authors: Terkula Iber, Benedict, Azman Kasan, Nor, Torsabo, Donald, Wese Omuwa, Jenifer
Format: Article
Language:English
Subjects:
Biopolymers
Biosphere
Cell walls
Chitin
Chitosan
Crayfish
Crustaceans
Decapoda
Exoskeleton
Exoskeletons
Extraction procedures
Glucosamine
Lobsters
Mollusks
Monomers
Polysaccharides
Prawns
Seafood
Seasonal variations
Shells
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Summary:Chitin was first discovered by its name from the Greek word “chiton”, which means “mail coat”. It is indeed a polysaccharide made up of naturally occurring acetyl-D-glucosamine monomers. Hatchett was the first researcher who extracted chitin from the shells of mollusks (crabs and lobsters), prawns, and crayfish in 1799. Later in 1811, Henri Braconnot discovered chitin in the cell walls of mushrooms and called it “fungine”. Chitin and chitosan are abundant in the biosphere as essential components of many organisms’ exoskeletons and as by-products of the global seafood industry. The biopolymer must be deacetylated before chitosan can be produced. It can also be extracted using microbes in a biological extraction procedure. The development of products that take advantage of the bioactivities of the existing primary commercial source of chitin (crustacean) has lagged expectations. Also, the disadvantages of the present commercial source such as seasonality and competition for other uses among others has been one of the driving forces towards seeking alternative sources of chitin and chitosan in nature. This review highlights some of the efforts made by environmental scholars to locate possible commercial sources of chitin and chitosan in nature over time.
ISSN:2164-6341
2164-6325
2164-6341
DOI:10.32604/jrm.2022.018142