Production and characterisation of chitosan from chitin of snail shells by sequential modification process

Presently, the snail shells produced wastes that are detrimental to clean immediate environment while over reliance on synthesized polymer suicidal because they not degradable. Hence, biological production of through recycling will signal an ending consequences associated with and synthesis. Therefore, current study is targeted at chitosan extraction, characterization from snail.  Shells were obtained in Ilesha, Osun State, Nigeria dried for 24 h sun later ground using grinding stone. Extraction chitin both achieved powdery form (10 g). A standard method was employed determination physicochemical functional properties. Chitin 5.50 2.46 g observed percentages 55 44.73 decolorization, demineralization, deproteinization deacetylation (DCMPA) methods. The recorded properties (physicochemical functional) are: content nitrogen (1.45%), composition ash (0.14%), moisture (4.84%), viscosity (942cP), solubility (83.65%), degree (26.55%), capacity emulsion (9.54%), density bulk (0.89 g/ml), water binding (816.43%) fat (356.45%). best high quality references quantities DCMPA   Key words: Chitosan, chitin, shells, decolourization, demenirelaization, (DCMPA).