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Tipo de publicación: Artículos científicos (Publicados en revistas de divulgación o científicas)

Título del artículo: Structural and physicochemical properties of bio-chemical chitosan and its performing in an active film with quercetin and Phaseolus polyanthus starch

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Año de publicación: 2023

Resumen: Chitosan is a mucoadhesive andnatural biodegradable polysaccharide derived by the deacetylation of chitin, such as an interesting biopolymer to form films and coatings for food preservation. The objective of this work was to isolate and characterize the
structural and physicochemical properties of biochemical chitosan (BC) from shrimp (Litopenaeus vannamei) exoskeletons such as to develop an active film based on BC, native bean (Phaseolus polyanthus) starch (BS), and quercetin (Q). Further, the antioxidant activity and in vitro release tests were evaluated and compared with commercial chitosan (CC)- commercial tapioca starch (TS)-Q control film. X-ray di raction (XRD) and Fourier transform infrared (FTIR) spectroscopy of BC were used to calculate the crystallinity index (58.91%) and deacetylation degree (88.45%), respectively. Also, the zeta ( ) potential and solubility values of the stock solution of BC were 45.72 mV and 99.86% at pH 4.0, respectively. The BCBSQ film presented
the highest release of Q in simulated foods in ethanol solutions at 50% and 95% concentrations, which could be used as an active packaging film both in oil-in-water emulsions and fatty foods with potential antioxidant activity.

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Autor(es): R.L. Zapata-Luna, G. Davidov-Pardo, N. Pacheco, T. Ayora-Talavera, H. Espinosa-Andrews, E. García-Márquez, J.C. Cuevas-Bernardino

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