Ivanova, Violeta and Dimovska, Violeta (2010) Determination of Total Flavan-3-Ols in Wines from Macedonia. Yearbook, Goce Delcev University – Stip, Faculty of Agriculture. pp. 45-57.
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Abstract
Flavan-3-ols are very important wine constituents which determine its organoleptic
properties, such as bitterness, astringency and taste. Spectrophotometric
assay with p-(dimethylamino) cinnamaldehyde was applied for analysis
of total ß avan-3-ols. The accuracy and precision of the method were conÞ rmed
using standard solution of (+)-catechin prepared with low, medium and high
concentrations. Additionally, the accuracy of the method was conÞ rmed by
standard additions. Total ß avan-3-ols (TF3-ols) were analyzed in different red
and white wine samples, produced from different vineyard areas in Republic
of Macedonia and from two vintages, in 2008 and in 2009. In general, the red
wines contained higher content of total ß avan-3-ols. TF3-ol content was lower
in the wines from 2008 which means that they decreased during the aging,
mainly as a result of polymerization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Total flavan-3-ols, wine, spectrophotometry |
| Subjects: | Agricultural Sciences > Agricultural biotechnology Natural sciences > Chemical sciences |
| Divisions: | Faculty of Agriculture |
| Depositing User: | Violeta Ivanova Petropulos |
| Date Deposited: | 05 Nov 2012 08:23 |
| Last Modified: | 28 Oct 2013 12:42 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/318 |
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