Autor según el artículo: Novell, M.; Guadarrama-Fernández, L.; Blondeau, P.; Andrade, F. J.

Departamento: Química Analítica i Química Orgànica

Autor/es de la URV: NOVELL RECASENS, MARTA; Guadarrama-Fernández, L.; BLONDEAU , PASCAL JEAN CLAUDE LEON; ANDRADE , FRANCISCO JAVIER

Resumen: A new biosensor for monitoring glucose levels in beverages is presented. The measurements are performed using potentiometric detection. Working electrodes are made using platinised paper as support and a biocompatible polymeric membrane made of a mixture of polyvinyl alcohol and chitosan containing glucose oxidase as the recognition layer. The system is based on the detection of the hydrogen peroxide generated by an enzymatic reaction performed in a highly sensitive, selective and simple way. The biosensors display suitable analytical performance (sensitivity −119.6 ± 6.4 mV/dec in the 0.03–1.0 mM range with a limit of detection of 0.02 mM). Determination of glucose in commercial orange juices is presented. These results were validated against conventional standard methods, showing good accuracy and fast analytical response. The methodology presented herein does not require complex samples treatment, offering an alternative to conventional methods, particularly for determinations performed with minimal expertise and without a laboratory infrastructure.

Grupo de investigación: Grup de Quimiometria, Qualimetria i Nanosensors

Áreas temáticas: Química Química Chemistry

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 0308-8146

Identificador del autor: ; ; 0000-0003-1331-5055; 0000-0003-1199-2837

Fecha de alta del registro: 2018-07-27

Página final: 69

Volumen de revista: 265

Versión del articulo depositado: info:eu-repo/semantics/submittedVersion

Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S030881461830894X?via%3Dihub

Programa de financiación: plan; Retos; CTQ2013-46404-R plan; Retos; CTQ2016-77128-R altres; Ramon y Cajal ; RyC; altres; CONACyT (Mexico) post doctorate scholarship;

DOI del artículo: 10.1016/j.foodchem.2018.05.082

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2018

Página inicial: 64

Tipo de publicación: Article Artículo Article