Utilization of marine waste to obtain β-chitin nanofibers and films from giant Humboldt squid dosidicus gigas

Cabrera-Barjas, Gustavo; González, Cristian; Nesic, Aleksandra; Marrugo, Kelly P.; Gómez, Oscar; Delattre, Cédric; Valdés-Lizama, Oscar; Yin, Heng; Bravo, Gaston; Cea, Juan

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dc.contributor.author	Cabrera-Barjas, Gustavo
dc.contributor.author	González, Cristian
dc.contributor.author	Nesic, Aleksandra
dc.contributor.author	Marrugo, Kelly P.
dc.contributor.author	Gómez, Oscar
dc.contributor.author	Delattre, Cédric
dc.contributor.author	Valdés-Lizama, Oscar
dc.contributor.author	Yin, Heng
dc.contributor.author	Bravo, Gaston
dc.contributor.author	Cea, Juan
dc.date.accessioned	2022-01-10T14:44:48Z
dc.date.available	2022-01-10T14:44:48Z
dc.date.issued	2021
dc.identifier.uri	http://repositorio.ucm.cl/handle/ucm/3707
dc.description.abstract	β-chitin was isolated from marine waste, giant Humboldt squid Dosidicus gigas, and further converted to nanofibers by use of a collider machine under acidic conditions (pH 3). The FTIR, TGA, and NMR analysis confirmed the efficient extraction of β-chitin. The SEM, TEM, and XRD characterization results verified that β-chitin crystalline structure were maintained after mechanical treatment. The mean particle size of β-chitin nanofibers was in the range between 10 and 15 nm, according to the TEM analysis. In addition, the β-chitin nanofibers were converted into films by the simple solvent-casting and drying process at 60 °C. The obtained films had high lightness, which was evidenced by the CIELAB color test. Moreover, the films showed the medium swelling degree (250–290%) in aqueous solutions of different pH and good mechanical resistance in the range between 4 and 17 MPa, depending on film thickness. The results obtained in this work show that marine waste can be efficiently converted to biomaterial by use of mild extractive conditions and simple mechanical treatment, offering great potential for the future development of sustainable multifunctional materials for various industrial applications such as food packaging, agriculture, and/or wound dressing.	es_CL
dc.language.iso	en	es_CL
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 Chile	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/cl/	*
dc.source	Marine Drugs, 19(4), 184	es_CL
dc.subject	Humboldt giant squid	es_CL
dc.subject	β-chitin	es_CL
dc.subject	Nanofibers	es_CL
dc.title	Utilization of marine waste to obtain β-chitin nanofibers and films from giant Humboldt squid dosidicus gigas	es_CL
dc.type	Article	es_CL
dc.ucm.indexacion	Scopus	es_CL
dc.ucm.indexacion	Isi	es_CL
dc.ucm.uri	www.mdpi.com/1660-3397/19/4/184	es_CL
dc.ucm.doi	doi.org/10.3390/md19040184	es_CL