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Mostrando publicaciones 1-5 de 5
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Influence of chitin nanofibers and gallic acid on physical-chemical and biological performances of chitosan-based films
Cabrera-Barjas, Gustavo; Albornoz, Karin; Lopez Belchi, Maria Dolores; Giordano, Ady; Bravo-Arrepol, Gastón; Moya-Elizondo, Ernesto; San Martin, Juan; Valdes, Oscar; Nesic, Aleksandra (2024)In this work, chitosan films loaded with gallic acid and different content of chitin nanofibers were prepared and subjected to different characterization techniques. The results showed that the inclusion of gallic acid to ...
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Utilization of industrial by-product fungal biomass from Aspergillus niger and Fusarium culmorum to obtain biosorbents for removal of pesticide and metal ions from aqueous solutions
Cabrera-Barjas, Gustavo; Gallardo, Francisco; Nesic, Aleksandra; Taboada, Edelio; Marican, Adolfo; Mirabal-Gallardo, Yaneris; Avila-Salas, Fabian; Delgado, Nacarid; de Armas-Ricard, Merly; Valdés-Lizama, Oscar (2020)In this work, Aspergillus niger and Fusarium culmorum cell wall by-products were chosen as microbial sources for chitin and chitosan production. Both polysaccharides were characterized by FTIR and 13C-CPMAS NMR, but GPC ...
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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 (2021)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 ...
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Valorization of food waste to produce intelligent nanofibrous β-chitin films
Cabrera-Barjas, Gustavo; Radovanović, Neda; Bravo, Gaston; De la Torre, Alexander F.; Valdés, Oscar; Nesic, Aleksandra (2021)The efficient use of waste from food processing industry is one of the innovative approaches within sustainable development, because it can be transferred into added value products, which could improve economic, energetic ...
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Value-added long-chain aliphatic compounds obtained through pyrolysis of phosphorylated chitin
Cabrera-Barjas, Gustavo; Jimenez, Romel; Romero, Romina; Valdes, O.; Nesic, Aleksandra; Hernández-García, Ruber; Neira, Andrónico; Alejandro-Martín, Serguei; De la Torre, Alexander F. (2023)In this work, chitin, as a biobased polymer, is used as a precursor to obtain a phosphorylated derivatives. The influence of the different degree of phosphorylation in chitin on pyrolysis pattern was investigated. In order ...