Statistical correlation between flavanolic composition, colour and sensorial parameters in grape seed during ripening

Analytica Chimica Acta
Raúl Ferrer-GallegoM Teresa Escribano-Bailón

Abstract

The aim of this work has been to determine the correlations between sensory analysis, colour and content of main flavanols present in seeds. For this, the flavanic composition of grape seeds with different degrees of maturity was analysed by HPLC-DAD-MS and the obtained results were correlated with CIELab colour parameters, perceived colour (C), hardness of the seed (HS), tannic intensity (TI) and astringency (A). Multiple linear regression analysis (MLR) with the variables showing significant correlations (p<0.05) was also performed. Grape seeds undergo important decreases in the content of catechins and procyanidin oligomers during ripening. Epicatechin-(4-8)-epicatechin-3-O-gallate (B2G) and (-)-epicatechin-3-O-gallate (ECG) are the flavanolic compounds whose contents decrease most. The changes in the phenolic composition accompany changes in TI, A and HS. The total content of flavanols in the seed is not the only factor affecting these attributes, since samples containing higher contents in flavanols can exhibit less astringency and tannic intensity than others with lower ones. The qualitative profile of the seeds is, therefore, also responsible for the sensations elicited in the mouth. A and HS parameters are more affected...Continue Reading

References

Nov 24, 1999·Journal of Agricultural and Food Chemistry·P Sarni-ManchadoM Moutounet
Oct 6, 2000·Phytochemistry·J A KennedyA L Waterhouse
Jun 8, 2006·Journal of Agricultural and Food Chemistry·S González-ManzanoM T Escribano-Bailón

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Citations

Sep 3, 2013·Journal of Agricultural and Food Chemistry·Fabrizio TorchioLuca Rolle
Aug 8, 2013·Journal of Agricultural and Food Chemistry·Luca RolleFulvio Mattivi
Apr 12, 2014·Talanta·Francisco J Rodríguez-PulidoFrancisco J Heredia
Apr 29, 2015·Journal of Agricultural and Food Chemistry·Ignacio García-EstévezM Teresa Escribano-Bailón
Oct 20, 2012·Journal of the Science of Food and Agriculture·Raúl Ferrer-GallegoM Teresa Escribano-Bailón
Jun 13, 2012·Analytica Chimica Acta·Raúl Ferrer-GallegoM Teresa Escribano-Bailón
Jun 13, 2012·Analytica Chimica Acta·Francisco J Rodríguez-PulidoFrancisco J Heredia
May 3, 2015·Chemical Senses·Raúl Ferrer-GallegoM Teresa Escribano-Bailón
Sep 4, 2016·Talanta·Natalia Quijada-MorínJosé Miguel Hernández-Hierro
Mar 7, 2014·Journal of Agricultural and Food Chemistry·Cristina Alcalde-EonM Teresa Escribano-Bailón
Apr 12, 2017·Journal of the Science of Food and Agriculture·Ignacio García-EstévezM Teresa Escribano-Bailón
Nov 23, 2016·Journal of the Science of Food and Agriculture·Giuseppe BombaiAdamo D Rombolà
May 17, 2021·Food Research International·Elvira ManjónM Teresa Escribano-Bailón
Jan 12, 2019·Journal of Agricultural and Food Chemistry·Pauline RousserieLaurence Geny-Denis

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