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Comparison of methods for estimating phenolic maturity in grapes: correlation between predicted and obtained parameters.
Anal Chim Acta. 2010 Feb 15; 660(1-2):127-33.AC

Abstract

With the aim of determining the real predictive ability of three methods for measuring phenolic maturity (Glories, ITV and Cromoenos), representative grapes of Merlot, Cabernet sauvignon, Grenache and Tempranillo were harvested at three different ripening levels. The grapes were vinified by triplicate and were also used for phenolic maturity estimation. After that, color intensity, CIELAB coordinates, anthocyanins by spectrometry and HPLC and total phenolics were analysed in wines and also in the different extracts from the three extraction methods. Statistical analysis of data was carried out to determine the real performance of prediction of the different methods. Glories method predicted reasonably the color intensity, CIELAB coordinates and the concentration of anthocyanins and total phenolics in wine although it needs a lot of time and it requires working carefully. On the other hand, Cromoenos method predicted similarly or even better the color and phenolic composition of wine. This method also presents the advantage of being much faster and easier to apply. In contrast, although the ITV method provided reasonable results for anthocyanins and total phenolic compounds its color prediction was not adequate.

Authors+Show Affiliations

Departament de Bioquímica i Biotecnologia, Facultat d'Enologia de Tarragona, Universitat Rovira i Virgili, Campus de Sescelades, C/Marcel.li Domingo, s/n. 43007 Tarragona, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20103153

Citation

Kontoudakis, Nikolaos, et al. "Comparison of Methods for Estimating Phenolic Maturity in Grapes: Correlation Between Predicted and Obtained Parameters." Analytica Chimica Acta, vol. 660, no. 1-2, 2010, pp. 127-33.
Kontoudakis N, Esteruelas M, Fort F, et al. Comparison of methods for estimating phenolic maturity in grapes: correlation between predicted and obtained parameters. Anal Chim Acta. 2010;660(1-2):127-33.
Kontoudakis, N., Esteruelas, M., Fort, F., Canals, J. M., & Zamora, F. (2010). Comparison of methods for estimating phenolic maturity in grapes: correlation between predicted and obtained parameters. Analytica Chimica Acta, 660(1-2), 127-33. https://doi.org/10.1016/j.aca.2009.10.067
Kontoudakis N, et al. Comparison of Methods for Estimating Phenolic Maturity in Grapes: Correlation Between Predicted and Obtained Parameters. Anal Chim Acta. 2010 Feb 15;660(1-2):127-33. PubMed PMID: 20103153.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of methods for estimating phenolic maturity in grapes: correlation between predicted and obtained parameters. AU - Kontoudakis,Nikolaos, AU - Esteruelas,Mireia, AU - Fort,Francesca, AU - Canals,Joan Miquel, AU - Zamora,Fernando, Y1 - 2009/11/10/ PY - 2009/10/08/received PY - 2009/10/29/revised PY - 2009/10/31/accepted PY - 2010/1/28/entrez PY - 2010/1/28/pubmed PY - 2010/3/31/medline SP - 127 EP - 33 JF - Analytica chimica acta JO - Anal Chim Acta VL - 660 IS - 1-2 N2 - With the aim of determining the real predictive ability of three methods for measuring phenolic maturity (Glories, ITV and Cromoenos), representative grapes of Merlot, Cabernet sauvignon, Grenache and Tempranillo were harvested at three different ripening levels. The grapes were vinified by triplicate and were also used for phenolic maturity estimation. After that, color intensity, CIELAB coordinates, anthocyanins by spectrometry and HPLC and total phenolics were analysed in wines and also in the different extracts from the three extraction methods. Statistical analysis of data was carried out to determine the real performance of prediction of the different methods. Glories method predicted reasonably the color intensity, CIELAB coordinates and the concentration of anthocyanins and total phenolics in wine although it needs a lot of time and it requires working carefully. On the other hand, Cromoenos method predicted similarly or even better the color and phenolic composition of wine. This method also presents the advantage of being much faster and easier to apply. In contrast, although the ITV method provided reasonable results for anthocyanins and total phenolic compounds its color prediction was not adequate. SN - 1873-4324 UR - https://www.unboundmedicine.com/medline/citation/20103153/Comparison_of_methods_for_estimating_phenolic_maturity_in_grapes:_correlation_between_predicted_and_obtained_parameters_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0003-2670(09)01459-7 DB - PRIME DP - Unbound Medicine ER -