Chitosan Synthesis From Extracted Chitin From Crustacean Shells

Chitosan Synthesis From Extracted Chitin From Crustacean Shells
Author(s):
Dipak D. Dhobi, Hemangi Desai
Keywords:
Crustacean shells, Chitin extraction, Microwave illumination, Demineralization, Deproteination, Chitosan synthesis
Abstract
Prawn shell, crab shell, krill shell and craw fish shell deserve special attention for remarkable production of chitin. In this work we have extracted chitin first time from mixture of these shells. An optimization study for extraction of chitin from 1.0 g of this shells mixture of crustaceans using variables like concentration of fixed volume (50 ml) of sulfuric acid and potassium hydroxide was performed and optimal conditions (50 ml 0.5M H2SO4 and 50ml 1M KOH) were resolute with maximum demineralization and deproteination with minimum weight of residue (0.287 g) under secondary treatment gave maximum chitin yield (28.60%). Structures of extracted products were confirmed through structural characterizations like FT-IR and elemental analysis. After then optimization of chitosan synthesis from 1.0 g chitin steeped in 20 ml 30% KOH using variables like time (min) and microwave power was performed and optimal conditions (11 minutes and 560 W microwave power) were resolved with maximum chitosan yield (77.6%).
Article Details
Unique Paper ID: 154239 Publication Volume & Issue: Volume 8, Issue 10 Page(s): 375 - 382
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