Vol.8, No.1, 2020, pp.101-111, doi:10.32604/jrm.2020.07725
OPEN ACCESS
RESEARCH ARTICLE
Two Routes to Produce Chitosan from Agaricus bisporus
  • Abdelghani Hassainia1, Hamid Satha1,*, Boufi Sami2
1 LSPN, University of 8 Mai 1945, BP 401, Guelma, 24000, Algeria
2 Faculty of Science-LMSE, University of Sfax, Sfax, 3000, Tunisia
* Corresponding Author: Hamid Satha. Email: sathahamid@yahoo.fr
Received 21 June 2019; Accepted 19 August 2019; Issue published 01 January 2020
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 have moisture content lower than 10%. However chitosan 2 has the less ash % which is the quality grade for chitosan medical applications. Accordingly, fungal chitosan 2 could have potential medical and agricultural applications.
Keywords
Biobased materials; chitosan; chitin; Agaricus bisporus; characterization of biomass
Cite This Article
Hassainia, A., Satha, H., Sami, B. (2020). Two Routes to Produce Chitosan from Agaricus bisporus. Journal of Renewable Materials, 8(1), 101–111.