Abdelghani Hassainia1, Hamid Satha1,*, Boufi Sami2
Journal of Renewable Materials, Vol.8, No.1, pp. 101-111, 2020, DOI:10.32604/jrm.2020.07725
Abstract Two methods were used to produce chitosan by deacetylation of chitin
which was extracted from Agaricus bisporus stipes. The first one gives chitosan 1
with low yield of 2.5%, degree of acetylation (DA) of 4%, molecular weight
(MW) of 2.973 × 105 (g/mol). The second route produces chitosan 2 with higher
yield of 41%, degree of acetylation (DA) of 17.23%, molecular weight (MW) of
2.939 × 105 (g/mol). Both chitosans were characterized by XRD, FTIR, 1
H-NMR
spectroscopy nuclear magnetic resonance of proton. The molecular weight (MW)
was determined by size exclusion chromatography (SEC). Thermal analysis
shows that both chitosans… More >
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