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Electroanalytical methods for predicting the oxidability of a wine or a grape must and related systems

A technique for wine, grape juice, markers of oxidizability, electroanalysis of oxidizability, selection of the best closure for storing wine or grape juice in a container, prediction of oxidizability of wine or grape juice Oxidative field, able to solve problems such as complication

Active Publication Date: 2015-09-02
VINVENTIONS USA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The determination of the optimum amount of oxygen required for a particular wine is further complicated by the fact that this parameter varies significantly between wines

Method used

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  • Electroanalytical methods for predicting the oxidability of a wine or a grape must and related systems
  • Electroanalytical methods for predicting the oxidability of a wine or a grape must and related systems
  • Electroanalytical methods for predicting the oxidability of a wine or a grape must and related systems

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0156]Example 1: Analysis of a set of six wines by cyclic voltammetry. The wines are six different white wines produced in 2010 from Grenache blanc grapes harvested in the Languedoc-Roussillon region (France). Voltammograms were recorded using an Edelscan device (EDEL Therapeutics, Switzerland) equipped with disposable multi-surface electrode strips.

[0157] Replace single-use electrode strips with new ones between scans, and discard used electrode strips. It takes less than 15 seconds to change electrode strips between scans. Scans were recorded over a voltage range from 0 to 1200 mV, and each scan took 30 seconds.

[0158] Then go to the figure 1 The device also calculated the processed voltammogram obtained by digital pseudotitration of the primary voltammogram according to the mathematical operation described in WO 2006 / 094529 A1. These processed voltammograms are depicted in figure 2 , and appears as an approximate bell-shaped curve. The electrochemical profiles o...

example 2

[0162] Example 2: To experimentally determine the oxidizability of each of the wines analyzed by voltammetry in Example 1, an accelerated aging test simulating wine aging was performed.

[0163] For the accelerated aging test, 10 mL of each wine was placed in a 40 ml bottle and left open to react with air at 25 degrees Celsius for 14 days. The oxidizability of each sample was then determined by the difference between the absorbance at 420 nm before and after the accelerated aging test. All experiments were performed in triplicate. Absorbance at 420 nm is an indicator of wine browning, one of the main changes induced by oxidation.

[0164] The results of the accelerated aging test are given in Table 2 below, and in image 3 is depicted as a bar graph. The six wines showed different oxidizability values, with samples 1 and 6 showing relatively low oxidizability.

[0165] Table 2

[0166] wine sample number

example 3

[0167] Example 3: The AOP values ​​listed in Table 1 (see Example 1) were compared to the experimentally determined wine oxidizability values ​​listed in Table 2 (see Example 2 and image 3 ) for drawing. Perform linear regression analysis to determine R 2 value. The resulting correlation plot is depicted in Figure 4 middle.

[0168] A very high correlation was observed (R 2 = 0.982), indicating that electrochemical data, and especially processed voltammograms and AOP values, have great potential to predict wine oxidizability.

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Abstract

An electroanalytical method for predicting the oxidability of a wine or a grape must is disclosed. This example includes recording an electrochemical signal of a sample of the wine or grape must; comparing an electrochemical signature of the electrochemical signal obtained in a) with reference curves of voltammograms obtained from wines or grape musts with known oxidability; and predicting the oxidability of the sample tested based on the comparison. Markers for predicting the oxidability of a wine or a grape must and the use of electrochemistry for predicting the oxidability of a wine or a grape must are also disclosed. A method for predicting the optimal total oxygen supply for storing a wine or a grape must in a container; a method for wine maturation and / or ageing and; a method for selecting an optimal closure for storing a wine or a grape must in a container are also disclosed.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application Serial No. 61 / 729,154, entitled "Electroanalytical Method for Predicting the Oxidizability of Wine or Grape Juice," filed November 21, 2012, which is adopted by The citations are hereby incorporated in their entirety. technical field [0003] The present disclosure relates to an electroanalytical method for predicting the oxidizability of wine or grape juice. Also, the present disclosure relates to markers for predicting the oxidizability of wine or grape juice and the use of electrochemistry, including but not limited to voltammetry, to predict the oxidizability of wine or grape juice. The present disclosure also relates to a method for predicting the optimal total oxygen supply for storing wine or grape juice in a container, a method for wine maturation and / or aging and a method for selecting The best way to store wine or grape juice in a contain...

Claims

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Application Information

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IPC IPC(8): G01N33/14
CPCC12H1/22G01N33/146G01N17/02
Inventor 毛里奇奥·乌利亚诺让-巴普蒂斯特·迪耶瓦尔斯特凡娜·比达尔菲利普·塔基尼
Owner VINVENTIONS USA LLC
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