2026-09-16T02:49:57Zhttps://gredos.usal.es/oai/requestoai:gredos.usal.es:10366/1454822025-04-30T19:33:01Zcom_10366_4001com_10366_3947com_10366_3946com_10366_3823com_10366_137251com_10366_4512col_10366_4002col_10366_137252
Gestión del Repositorio Documental de la Universidad de Salamanca
author
Jacquet, Rémi
author
Quideau, Stéphane
author
García Estévez, Ignacio
author
Alcalde Eon, Cristina
author
Rivas Gonzalo, Julián C.
author
Escribano Bailón, María Teresa
2021-03-03T09:37:15Z
2021-03-03T09:37:15Z
2013
García Estévez, I. [et al.] (2013) Hemisynthesis and Structural and Chromatic Characterization of Delphindin 3-O-Glucoside-Vescalagin Hybrid Pigments. Journal of Agricultural and Food Chemistry, 61(47), pp. 11560-11568. doi:10.1021/jf4033188
0021-8561
http://hdl.handle.net/10366/145482
10.1021/jf4033188
1520-5118
[EN] During red wine maturation in the presence of oak wood, reactions involving anthocyanins and ellagitannins might affect wine organoleptic properties such as color and astringency. In this work, the condensation reaction between myrtillin (delphinidin 3-O-glucoside) and vescalagin has been performed to determine the behavior of this anthocyanin in this kind of
reaction and to assess the possible impact of such a reaction in wine color modulation. Two different hybrid pigments have been hemisynthetized and characterized by HPLC-DAD-MS and NMR spectroscopy. These pigments have been identified as 1-deoxyvescalagin-(1β→8)-myrtillin (major) and 1-deoxyvescalagin-(1β→6)-myrtillin (minor). The minor pigment could be
formed both by the condensation reaction and by a regioisomerization process from the major pigment. Moreover, the chromatic properties of these pigments have been studied and compared to those of myrtillin. The hybrid pigments showed an important bathochromic shift (ca. 20 nm) in the maximum absorbance wavelength and lower molar absorption coefficients.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
C-glucosidic ellagitannin
Oak wood
Red wine
Myrtillin (delphinin 3-O-glucoside)
Vescalagin
Anthocyanin reactivity
Hemisynthesis and Structural and Chromatic Characterization of Delphinidin 3-O-Glucoside–Vescalagin Hybrid Pigments
info:eu-repo/semantics/article
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URL
https://gredos.usal.es/bitstream/10366/145482/1/Garc%c3%ada%20Est%c3%a9vez_Hemisynthesis.pdf
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García Estévez_Hemisynthesis.pdf.txt