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Method for accelerating aging of Baijiu through electrochemical oxidation

An electrochemical and aging technology, applied in the field of liquor aging, can solve the problems of affecting the quality stability of liquor, unstable catalytic effect, and large differences in wine samples, so as to promote sustainable development, shorten aging time, and ensure stability. sexual effect

Pending Publication Date: 2020-08-11
SHAOYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, by controlling the platinum potential of the working electrode of the oxidation group and the reduction group, the catalytic effect is unstable, and the wine samples processed by different batches are quite different, which affects the stability of the liquor quality.

Method used

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  • Method for accelerating aging of Baijiu through electrochemical oxidation
  • Method for accelerating aging of Baijiu through electrochemical oxidation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of electrochemical oxidation catalyzes the method for aging liquor, specifically as follows:

[0024] Preparation of self-assembled film modified gold electrode: sequentially polish the gold electrode into a mirror surface with Al2O3 polishing powder with a particle size of 0.3 micron and 0.05 micron, and then successively use a 10% aqueous solution of dilute hydrochloric acid with a volume fraction of 50% The aqueous solution of ethanol, deionized water cleaning; the self-assembly solution is configured by L-cysteine, ethanol and butanol with a volume ratio of 2:100:200, and the above-mentioned gold electrode is immersed in the self-assembly solution, at room temperature React for 24 hours, then wash with 50% ethanol aqueous solution and deionized water successively;

[0025] New wine test: Use the self-assembled membrane modified gold electrode as the working electrode, silver / silver chloride reference electrode, and platinum mesh electrode as the counter elect...

Embodiment 2

[0029] A kind of electrochemical oxidation catalyzes the method for aging liquor, specifically as follows:

[0030] Preparation of self-assembled film modified gold electrode: sequentially polish the gold electrode into a mirror surface with Al2O3 polishing powder with a particle size of 0.3 micron and 0.05 micron, and then successively use a 10% aqueous solution of dilute hydrochloric acid with a volume fraction of 50% The aqueous solution of ethanol, deionized water cleaning; the self-assembly solution is configured by L-cysteine, ethanol and butanol with a volume ratio of 5:100:200, and the above-mentioned gold electrode is immersed in the self-assembly solution, at room temperature React for 24 hours, then wash with 50% ethanol aqueous solution and deionized water successively;

[0031] New wine test: Use the self-assembled membrane modified gold electrode as the working electrode, silver / silver chloride reference electrode, and platinum mesh electrode as the counter elect...

Embodiment 3

[0035] A kind of electrochemical oxidation catalyzes the method for aging liquor, specifically as follows:

[0036] Preparation of self-assembled film modified gold electrode: sequentially polish the gold electrode into a mirror surface with Al2O3 polishing powder with a particle size of 0.3 micron and 0.05 micron, and then successively use a 10% aqueous solution of dilute hydrochloric acid with a volume fraction of 50% The aqueous solution of ethanol, deionized water cleaning; the self-assembly solution is configured by L-cysteine, ethanol and butanol with a volume ratio of 10:100:200, the above gold electrode is immersed in the self-assembly solution, at room temperature React for 24 hours, then wash with 50% ethanol aqueous solution and deionized water successively;

[0037] New wine test: Use the self-assembled membrane modified gold electrode as the working electrode, silver / silver chloride reference electrode, and platinum mesh electrode as the counter electrode to form ...

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Abstract

The invention discloses a method for accelerating aging of Baijiu by electrochemical oxidation. The method comprises the following steps: immersing a gold electrode into a self-assembly solution for reaction, and forming a three-electrode system by using a self-assembly membrane modified gold electrode as a working electrode, a silver / silver chloride reference electrode and a platinum net electrode counter electrode; putting the three-electrode system into a container containing new wine, testing a volt-ampere spectrum in an interval of [-1V, 0V], and recording a reduction potential Vre of thevolt-ampere spectrum; putting the three-electrode system into a container containing new wine, and setting the oxidation voltage to be Vre+(0.7-0.9)V by adopting a chronoamperometry; recording the initial potential reaction current as I<0>; and when the reaction current I<1> is increased to 1.2-1.5 times of the I<0>, stopping aging. The method has the advantages that the self-assembled membrane modified gold electrode is used as a working electrode, a proper oxidation potential is selected to oxidize new wine, and aging acceleration is stopped under a proper reaction current condition. On thepremise of ensuring the quality stability of the Baijiu, the aging time of the Baijiu is shortened.

Description

technical field [0001] The invention relates to the field of liquor aging, in particular to a method for electrochemically oxidizing and aging liquor. Background technique [0002] The newly produced new wine has a spicy taste and can only be regarded as a semi-finished product. Similar to brandy and whiskey, liquor generally needs to be stored for a certain period of time to let it mature, reduce the irritation and pungency of the new wine, and make the liquor soft and palatable, mellow and fragrant, and have a harmonious taste. This phenomenon is called in the liquor industry. It is "aged" or "aged". The aging time needs 3 to 5 years, even 10 years, the long aging has greatly increased the cost of wine making, and also greatly increased the sales price of liquor. Therefore, the liquor industry is badly in need of a kind of artificial aging technology to shorten the aging time of liquor. [0003] Existing technology at present, such as the electrocatalytic method (public...

Claims

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Application Information

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IPC IPC(8): C12H1/16C12H1/14
CPCC12H1/16C12H1/14
Inventor 郑青余有贵熊阿媛
Owner SHAOYANG UNIV
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