lactic acid demineralization of shrimp shell and chitosan synthesis
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2015
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Abstract
The use of lactic acid was compared to hydrochloric acid for shrimp shell demineralization in chitosan synthesis. Five different acid concentrations were considered for the study: 1.5M, 3.0M, 4.5M, 6.0M and 7.5M. After demineralization, the shrimp shell were deproteinized and subsequently deacetylated to produce chitosan using sodium hydroxide solution. The synthesized chitosan samples were characterized using solubility, FTIR, SEM, XRD and viscosity. The SEM, FTIR and XRD analysis indicated that chitosan was synthesized with a high degree of deacetylation (83.18±2.11 when lactic acid was used and 84.2±5.00 when HCl was used). The degree of deacetylation and the molecular weight of the chitosan samples were also estimated. ANOVA analysis (at 95% confidence interval) indicated that acid type and concentration did not significantly affect the solubility, degree of deacetylation, viscosity and molecular weight of the chitosan within the range considered.
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ameh2015leonardolactic
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| Authors | ;Alewo Opuada AMEH;Muhammed Tijani ISA;Mariam AYINLA;Samuel Okon BASSEY;Blessing Mayowa OLATUNJI |
| Journal | journal of mass spectrometry |
| Year | 2015 |
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