2026-04-19T12:08:18Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/81812023-12-04T12:35:33Zcom_10259.4_2520com_10259_5086com_10259_2604com_10259_4313com_10259_5363col_10259.4_2521col_10259_4314col_10259_5364

González Ceballos, Lara Cavia Camarero, María del Mar Fernández Muiño, Miguel Ángel Osés Gómez, Sandra María Sancho Ortiz, María Teresa Ibeas Cortes, Saturnino García García, Félix Clemente García Pérez, José Miguel Vallejos Calzada, Saúl 2023-12-04T12:05:42Z 2023-12-04T12:05:42Z 2021-04 0308-8146 http://hdl.handle.net/10259/8181 10.1016/j.foodchem.2020.128300 We have developed a new method for the rapid (2 h) and inexpensive (materials cost < 0.02 €/sample) “2-in-1” determination of the total phenolic content (TPC) and the antioxidant activity (AOX) in honey samples. The method is based on hydrophilic colorimetric films with diazonium groups, which react with phenols rendering highly colored azo groups. The TPC of the sample is correlated to its trolox equivalent antioxidant capacity (TEAC). The intensity of the color allows us to determine both TPC and TEAC of the sample by the analysis of a picture taken with a smartphone that is analysed by the use of the color-definition-parameters (RGB). The controlled light conditions and the systematic use of the same camera avoid the periodical calibration of the system improving the efficiency of the method. Thus, it is a simple method carried out by non-specialized personnel and it involves much lower money and time investment compared to traditional methods. We gratefully acknowledge the financial support provided by FEDER (Fondo Europeo de Desarrollo Regional), and both the Spanish Ministerio de Economía, Industria y Competitividad (MAT2017-84501-R) and the Consejería de Educación—Junta de Castilla y León (BU061U16 and BU041G18) are gratefully acknowledged. application/vnd.openxmlformats-officedocument.wordprocessingml.document eng Elsevier Food Chemistry. 2021, V. 342, 128300 https://doi.org/10.1016/j.foodchem.2020.128300 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2017-84501-R/ES/POLIMEROS SENSORES. ETIQUETAS INTELIGENTES CON APLICACION EN BIOMEDICINA Y EN SEGURIDAD ALIMENTARIA/ info:eu-repo/grantAgreement/Junta de Castilla y León//BU061U16//MATERIALES POLIMÉRICOS AVANZADOS: FILMS, FIBRAS Y RECUBRIMIENTOS COMO SENSORES EN SEGURIDAD CIVIL Y ALIMENTARIA, ASÍ COMO EN EL ÁMBITO BIOMÉDICO, AGROALIMENTARIO, AMBIENTAL E INDUSTRIAL/ info:eu-repo/grantAgreement/Junta de Castilla y León//BU041G18/INVESTIGACIÓN DE LAS PROPIEDADES BIOLÓGICAS DE LA MIEL NATURAL Y DE LA MIEL EN POLVO/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Honey Sensor Total phenolic content Antioxidant activity TEAC Polymer Polyphenols Alimentos Química orgánica Food Chemistry, Organic A simple one-pot determination of both total phenolic content and antioxidant activity of honey by polymer chemosensors info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Food Chemistry 342 128300