Extraction of Chitin, Chitosan, and Calcium Acetate from Mussel Shells for Sustainable Waste Management

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dc.contributor.authorSeangarun, Chaowared
dc.contributor.authorSeesanong, Somkiat
dc.contributor.authorBoonchom, Banjong
dc.contributor.authorLaohavisuti, Nongnuch
dc.contributor.authorRungrojchaipon, Pesak
dc.contributor.authorBoonmee, Wimonmat
dc.contributor.authorPunthipayanon, Sirichet
dc.contributor.authorThongkam, Montree
dc.date.accessioned2026-08-06T10:51:50Z
dc.date.available2026-08-06T10:51:50Z
dc.date.issued2025-08-01
dc.description.abstractIn this paper, mussel shells were used to produce chitin, chitosan, and calcium acetate using chemical processes, searching for an alternative environmentally friendly biopolymer and calcium source. Mussel shells were treated with acetic acid as a demineralizing agent, resulting in separate solid fractions and calcium solution. The solid was further purified to produce chitin by deproteinization and decolorization processes, and then the deacetylation process was used to obtain chitosan. The calcium solution was evaporated to produce calcium acetate powder. The yields of extracted chitin, chitosan, and calcium acetate from 100 g of mussel shells were 2.98, 2.70, and 165.23 g, respectively. The prepared chitin, chitosan, and calcium acetate were analyzed by Fourier transform infrared (FTIR) spectrophotometry, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscope (SEM) to confirm the chemical and physical properties. The analysis results of chitin and chitosan revealed the similarity to chitosan derived from crustaceans and insects in terms of functional group, structure and morphologies. The prepared calcium acetate shows FTIR and XRD data corresponding to calcium acetate monohydrate (Ca(CH<inf>3</inf>COO)<inf>2</inf>·H<inf>2</inf>O) similar to synthesized calcium acetate in previous research. In addition, the mineral contents of calcium acetate identified by X-ray fluorescence (XRF) analysis exhibit 97.8% CaO with non-toxic impurities. This work demonstrated the potential of the production process of chitin, chitosan, and calcium acetate for the development of a sustainable industrial process with competitive functional performance against the commercial chitin and chitosan production process using crustacean shells and supported the implementation of a circular economy.
dc.identifier.citationInternational Journal of Molecular Sciences, 26(15), 2025
dc.identifier.doi10.3390/ijms26157107
dc.identifier.issn16616596
dc.identifier.other2-s2.0-105013341690
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/17153
dc.sourceInternational Journal of Molecular Sciences
dc.subjectcalcium acetate
dc.subjectchitin
dc.subjectchitosan
dc.subjectmussel shells
dc.subjectwaste management
dc.titleExtraction of Chitin, Chitosan, and Calcium Acetate from Mussel Shells for Sustainable Waste Management
dc.typeArticle

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