Miguel Ángel Ramírez1, Patricia González2, Juan Reinerio Fagundo2, Margaret Suarez3, Clara Melian3, Tania Rodríguez1, Carlos Peniche4*
Journal of Renewable Materials, Vol.5, No.1, pp. 30-37, 2017, DOI:10.7569/JRM.2016.634121
Abstract The inorganic components of crustacean shells are usually removed using HCl solutions. This provokes undesirable modifications in the extracted chitin. In the present procedure, deproteinized lobster shells were demineralized with CO2 and a cationic resin (cationite). The resulting chitin (CHI-CO2) is compared in terms of degree of acetylation (DA), crystallinity index (CrI) and thermal stability with chitins obtained by demineralization procedures with HCl (CHI-HCl) and ethylenediaminetetraacetic acid (CHI-EDTA). The ash content of chitins demineralized with CO2 was similar to that of chitins prepared using HCl or EDTA. However, the resultant DA and CrI of CHI-HCl and CHI-EDTA were lower than… More >
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