2 documents found, page 1 of 1
Wine astringent compounds monitored by an electrochemical biosensor
Costa, Joana J.; Moreira, Felismina; Soares, Susana; Brandão, Elsa; Mateus, Nuno; Freitas, Victor De; Sales, M. G. F.An innovative approach for monitoring astringent polyphenols in beverages (wines) is described, consisting of an electrochemical biosensor constructed by adsorbing salivary -amylase or proline-rich protein (PRP) onto amined gold screen-printed electrodes. Interaction with polyphenols was tested using pentagalloyl glucose (PGG) as a standard, an important representative element for astringency. The analytical pr...
Wine astringent compounds monitored by an electrochemical biosensor
Costa, Joana J.; Moreira, Felismina; Soares, Susana; Brandão, Elsa; Mateus, Nuno; Freitas, Victor de; Sales, GoretiAn innovative approach for monitoring astringent polyphenols in beverages (wines) is described, consisting of an electrochemical biosensor constructed by adsorbing salivary α-amylase or proline-rich protein (PRP) onto amined gold screen-printed electrodes. Interaction with polyphenols was tested using pentagalloyl glucose (PGG) as a standard, an important representative element for astringency. The analytical p...