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Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid

This study considers the kinetics of snail shells demineralization process using acetic acid. It was washed, sundried then ground into four different particle sizes. The ranges of particle sizes are 6.3–4.75 mm, 4.75–2 mm, 2 - 1 mm, and 600 -300 μm. The shells were first deproteinized with sodium hy...

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Detalles Bibliográficos
Autores principales: Oyekunle, Daniel T., Omoleye, James A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6861582/
https://www.ncbi.nlm.nih.gov/pubmed/31763481
http://dx.doi.org/10.1016/j.heliyon.2019.e02828
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author Oyekunle, Daniel T.
Omoleye, James A.
author_facet Oyekunle, Daniel T.
Omoleye, James A.
author_sort Oyekunle, Daniel T.
collection PubMed
description This study considers the kinetics of snail shells demineralization process using acetic acid. It was washed, sundried then ground into four different particle sizes. The ranges of particle sizes are 6.3–4.75 mm, 4.75–2 mm, 2 - 1 mm, and 600 -300 μm. The shells were first deproteinized with sodium hydroxide solution thereafter they were demineralized using 1.2 M acetic acid solution. Kinetics of demineralization of the snail shells was performed by XRF analysis of the chitin produced at 5, 10, 15, 20, 25, 30, and 35 min. The kinetic results show that mechanism of chitin formation from snail shell occurs through the chemical reaction controlled (CRC) model of the shrinking core model for particle sizes between 6.3 – 4.75 mm, 4.75–2 mm, and 2–1 mm particle sizes while Fluid Film Diffusion (FFD) model was observed for the smaller range of 600–300 μm particle sizes. The surface morphology and the FTIR analysis of the synthesized chitin were typical of those obtained for earlier studies.
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spelling pubmed-68615822019-11-22 Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid Oyekunle, Daniel T. Omoleye, James A. Heliyon Article This study considers the kinetics of snail shells demineralization process using acetic acid. It was washed, sundried then ground into four different particle sizes. The ranges of particle sizes are 6.3–4.75 mm, 4.75–2 mm, 2 - 1 mm, and 600 -300 μm. The shells were first deproteinized with sodium hydroxide solution thereafter they were demineralized using 1.2 M acetic acid solution. Kinetics of demineralization of the snail shells was performed by XRF analysis of the chitin produced at 5, 10, 15, 20, 25, 30, and 35 min. The kinetic results show that mechanism of chitin formation from snail shell occurs through the chemical reaction controlled (CRC) model of the shrinking core model for particle sizes between 6.3 – 4.75 mm, 4.75–2 mm, and 2–1 mm particle sizes while Fluid Film Diffusion (FFD) model was observed for the smaller range of 600–300 μm particle sizes. The surface morphology and the FTIR analysis of the synthesized chitin were typical of those obtained for earlier studies. Elsevier 2019-11-14 /pmc/articles/PMC6861582/ /pubmed/31763481 http://dx.doi.org/10.1016/j.heliyon.2019.e02828 Text en © 2019 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Oyekunle, Daniel T.
Omoleye, James A.
Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid
title Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid
title_full Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid
title_fullStr Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid
title_full_unstemmed Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid
title_short Effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid
title_sort effect of particle sizes on the kinetics of demineralization of snail shell for chitin synthesis using acetic acid
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6861582/
https://www.ncbi.nlm.nih.gov/pubmed/31763481
http://dx.doi.org/10.1016/j.heliyon.2019.e02828
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