2024-03-29T12:09:46Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/51172021-11-10T09:38:26Zcom_10259_4313com_10259_5086com_10259_2604com_10259_4365col_10259_4314col_10259_4366
Polymeric chemosensor for the colorimetric determination of the total polyphenol index (TPI) in wines
Vallejos Calzada, Saúl
Moreno Mediavilla, Daniel
Ibeas Cortes, Saturnino
Muñoz Santamaría, María Asunción
García García, Félix Clemente
García Pérez, José Miguel
Polymeric sensors
Solid phase reactions
Colorimetric sensors
Polyphenol sensors
TPI
Química orgánica
Chemistry, Organic
We have developed a new method for the rapid and inexpensive determination of the total polyphenol index (TPI) in wines by simply immersing our sensory film in red or white wines and visually checking the colour change (qualitative analysis) or by analysing a photo taken of the film with a smartphone (quantitative analysis). This sensory material is straightforward and inexpensively prepared; it requires no monomer synthesis, is based on 100% commercially available monomers, and contains benzenediazonium salt motifs, which in the presence of phenols and/or polyphenol-based structures produce coloured diazo compounds. These sensory motifs are chemically anchored to the polymeric structure, and, accordingly, no migration of organic substances from the material occurs in the sensing process. Our method needs neither reagents nor sample pretreatment and has been contrasted with the standard TPI determination, i.e., measuring the absorbance of diluted wine at 280 nm, obtaining reliable data for white and red wines.
Fondo Europeo de Desarrollo Regional and both the Spanish Agencia Estatal de Investigación (MAT2017-84501-R) and the Consejería de Educación, Junta de Castilla y León (BU306P18)
2019-06-13T11:46:44Z
2019-12
2020-12-31
info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
0956-7135
http://hdl.handle.net/10259/5117
10.1016/j.foodcont.2019.06.010
eng
Food Control. 2019, V. 106, 106684
https://doi.org/10.1016/j.foodcont.2019.06.010
info:eu-repo/grantAgreement/MICINN/MAT2017-84501-R
info:eu-repo/grantAgreement/JCyL/BU306P18
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
application/pdf
Elsevier
https://riubu.ubu.es/bitstream/10259/5117/7/Vallejos-fc_2019.pdf.jpg
Hispana
TEXT
http://creativecommons.org/licenses/by-nc-nd/4.0/
RIUBU. Repositorio Institucional de la Universidad de Burgos
http://hdl.handle.net/10259/5117