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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: email

Journal of Renewable Materials 2020, 8(1), 101-111. https://doi.org/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 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.

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Hassainia, A., Satha, H., Sami, B. (2020). Two Routes to Produce Chitosan from Agaricus bisporus. Journal of Renewable Materials, 8(1), 101–111. https://doi.org/10.32604/jrm.2020.07725

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cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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