CHITIN AND CHITOSAN

CHITIN AND CHITOSAN


It is the polysaccharide derivative Containing amino and acetyl groups and is the most abundant organic constituent in the skeletal material of the invertebrates. It is found in mollusks, annelids, arthropods and also, as a Constituent of the mycelia and spores of many fungi.

During the canning of lobster, Crab and shrimp, substantial quantities of crustacean waste material is formed. The waste mainly consists of shells and heads. Hard crustacean Sheila contain 15 - 20 per cent chitin while soft shells of shrimp are reported to have 15 - 30 per cent of chitin, Mycelia of Penicillium species contain about 20 per cent of chitin. miesticsindiDeacetylated chitin is known as chitosan.




Uses


1.       Due to Cross linkages between glucose molecules in chitin, it is indigestible to humans like cellulose.
2.        Therapeutically, it is used in wound healing preparations.
3.       Chitin is used as a sizing agent or rayon, Cotton, wool and even for synthetic fibres.

4.        It has great adhesiveness with glass and plastics. Industrially chitin and chitosan are used in the process of water treatment.

Comments

Post a Comment

Popular posts from this blog

LACTOSE

LACTOSE Synonyms Lactose has several Synomyms: Milk sugar, Lactose monohydrate, LactinSaccharumlactis, Lactosemonohydricum. Biological source Lactose is a natural disaccharide consisting of galactose and glucose and obtained from milk of most mammals. Uses 1.     Lactose is widely used as a filler or diluent in tablets, capsules, and infant feed formulae beside in dry powder inhalations 2.     It is used in Combination with sucrose to prepare sugar Coating Solutions (Approx. 1:3). .
Read more

GUM KARAYA

GUM KARAYA Synonym Indiantragacanth, Sterculia gum; Karaya gum Biological Source Gum karaya is a dried gummy exudate obtained from the tree Sterculiaurens (Roxburgh); Sterculiavillosa (Roxburgh), Sterculiatragacantha (Lindley) or other species of Sterculia (Sterculiaceae) Gęographical Source Surterculiaurens is wide spread in India, especially in north central parts. Description It is found in the form of irregular tears or vermiform pieces from white to brown in Colour. It has slight acetous odour and bland mucilaginous taste. Wood fibres and small sand particles may be present in the drug. It is insoluble in water, but forms a translucent Colloidal solution. Powdered gum swells in water . Uses 1.       It swells about 60-100 times in water. It is neither digested nor absorbed by the body and hence, it is a good bulk laxative. 2.        It is also used as denture adhesive in denta...
Read more

ACACIA

                                                                ACACIA Synonym : Gucacia, Gum arabica, Indian gum Biological Source : Indian gum is the dried gummy exudation obtained from the stem and branches of wild Acacia arabicabélonging to family Leguminosae. Geographical Source : The plant is found in India, Sri Lanka, Sudan, Morocco and Africa. In India, it occurs in Punjab, Rajasthan and Western Ghats. About 85 per cent of world supply of gum acacia is from Sudan. Cultivation and Collection   : It is a common member of dry monsoon forests of India. It Is an evergreen tree with short trunk . It is not cultivated on commercial scale. Gum is Collected from wild grown plants, agent...
Read more