Sustainable Synthesis of Calcium Propionate from Cockle Shell Biowaste for Food Additive Production

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dc.contributor.authorSeangarun, Chaowared
dc.contributor.authorBoonchom, Banjong
dc.contributor.authorSeesanong, Somkiat
dc.contributor.authorBoonmee, Wimonmat
dc.contributor.authorPunthipayanon, Sirichet
dc.contributor.authorLaohavisuti, Nongnuch
dc.contributor.authorRungrojchaipon, Pesak
dc.date.accessioned2026-08-06T10:55:37Z
dc.date.available2026-08-06T10:55:37Z
dc.date.issued2026-06-01
dc.description.abstractCalcium propionate (Ca(CH<inf>3</inf>CH<inf>2</inf>COO)<inf>2</inf>) was successfully synthesized from cockle shell biowaste through a reaction with propionic acid at concentrations of 80%, 90%, and 99%, valorizing seafood processing biowaste as a renewable calcium source in support of circular economy principles. The synthesis was conducted at ambient temperature with a fixed CaCO<inf>3</inf>: propionic acid molar ratio of 1:2, enabling rapid reaction completion without external heating or complex purification steps. The prepared samples were characterized by FTIR, XRD, TGA, and SEM techniques, which confirmed the formation of calcium propionate monohydrate (Ca(CH<inf>3</inf>CH<inf>2</inf>COO)<inf>2</inf>·H<inf>2</inf>O), while XRF confirmed more than 97 wt% CaO across all samples with non-toxic impurities corresponding to compositional requirements for food additive calcium propionate (E282). The sample prepared using 80% propionic acid exhibited the highest yield (90.24%) and soluble percentage (98.23%). The proposed approach demonstrates an effective valorization of cockle shell waste into a food additive, calcium propionate, offering advantages in terms of sustainability, cost efficiency, and scalability, and highlighting its strong potential for industrial food additive production within a circular economy framework.
dc.identifier.citationInternational Journal of Molecular Sciences, 27(11), 2026
dc.identifier.doi10.3390/ijms27114955
dc.identifier.issn16616596
dc.identifier.other2-s2.0-105041553178
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/18129
dc.sourceInternational Journal of Molecular Sciences
dc.subjectbiowaste refinery
dc.subjectcalcium carbonate
dc.subjectcalcium propionate
dc.subjectcockle shell
dc.subjectfood preservative
dc.titleSustainable Synthesis of Calcium Propionate from Cockle Shell Biowaste for Food Additive Production
dc.typeArticle

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