An infrared investigation in relation with chitin and chitosan characterization

Brugnerotto, J.; Lizardi, J.; Goycoolea Valencia, Francisco Martín; Argüelles Monal, Waldo; Desbrières, J.; Rinaudo, Marguerite

Publication:
An infrared investigation in relation with chitin and chitosan characterization

dc.contributor.author	Brugnerotto, J.
dc.contributor.author	Lizardi, J.
dc.contributor.author	Goycoolea Valencia, Francisco Martín
dc.contributor.author	Argüelles Monal, Waldo
dc.contributor.author	Desbrières, J.
dc.contributor.author	Rinaudo, Marguerite
dc.contributor.department	Biología Celular e Histología
dc.date.accessioned	2025-01-29T07:38:28Z
dc.date.available	2025-01-29T07:38:28Z
dc.date.issued	2001-01-12
dc.description	© 2001 Elsevier Science Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This document is the Accepted Manuscript version of a Published Work that appeared in final form in Polymer. To access the final edited and published work see https://doi.org/10.1016/S0032-3861(00)00713-8
dc.description.abstract	The use of infrared spectroscopy for characterization of the composition of chitin and chitosan covering the entire range of degree of acetylation (DA) and a wide variety of raw materials is examined further. The ratio of absorbance bands selected was calibrated using 1H liquid and 13C CP-MAS solid-state NMR as absolute techniques. IR spectra of the structural units of these polymers validated the choice of baselines and characteristic bands. The bands at 1650 and 1320 cm-1 were chosen to measure the DA. As internal reference, the intensities at 3450 and 1420 cm-1 were evaluated. The absorption band ratios involving the reference at 3450 cm-1 had poorer fit. The absorption ratio A1320/A1420 shows superior agreement between the absolute and estimated DA-values (DA% = 31.92A1320/A1420 - 12.20; r = 0.990)	es
dc.format	application/pdf	es
dc.format.extent	12	es
dc.identifier.citation	Polymer, 2001, 42, 3569-3580
dc.identifier.doi	https://doi.org/10.1016/S0032-3861(00)00713-8
dc.identifier.issn	Print: 0032-3861
dc.identifier.issn	Electronic: 1873-2291
dc.identifier.uri	http://hdl.handle.net/10201/149582
dc.language	eng	es
dc.publisher	Elsevier
dc.relation	The authors thank GESVAL S.A. (Liège, Belgium), the research group on Chitin–Chitosan of the University of Liège headed by Dr M.-F. Versali and CNRS-CONACYT cooperation program for their financial support. WAM wishes to recognize financial support form CONACYT.	es
dc.relation.publisherversion	https://www.sciencedirect.com/science/article/pii/S0032386100007138?via%3Dihub
dc.rights	info:eu-repo/semantics/openAccess	es
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.subject	Chitin	es
dc.subject	Chitosan
dc.subject	Degree of acetylation
dc.subject.other	CDU::5 - Ciencias puras y naturales::54 - Química::544 - Química física	es
dc.title	An infrared investigation in relation with chitin and chitosan characterization	es
dc.type	info:eu-repo/semantics/article	es
dspace.entity.type	Publication	es