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Identification method of dry red wine aging year

A dry red wine and identification method technology, which is applied in the field of dry red wine vintage detection, can solve the problems such as difficulty in popularization

Inactive Publication Date: 2020-06-16
YANTAI CHANGYU PIONEER WINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are nearly a thousand components in dry red wine, and tens of thousands of chemical indicators that can be analyzed. At present, there is no accurate prediction method for determining the vintage of dry red wine through chemical indicators.
Sommeliers with extremely high professional skills can theoretically judge the aging state of wine through sensory tasting, and even the specific year, but it is difficult to popularize

Method used

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  • Identification method of dry red wine aging year
  • Identification method of dry red wine aging year
  • Identification method of dry red wine aging year

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The detection method of the present invention was used to detect the Changyu Zuishixian Cabernet Sauvignon dry red wine (aged for 1 year) produced in 2018.

[0042] 1. Filter the dry red wine with a PTFE filter membrane with a pore size of 0.45 μm, measure the absorbance of the filtered dry red wine under the conditions of 450nm, 520nm, 570nm and 630nm wavelengths under the 1mm path cuvette, and record them as A450 , A520, A570 and A630, the data are 0.686, 0.7933, 0.561 and 0.141 respectively.

[0043] Use Office-Excel to calculate the light transmittance Ti:

[0044] Ti=POWER(10,-Ai)(i=450, 520, 570, 630)

[0045] Namely: T450=POWER(10,-0.686)=0.206062991

[0046] T520=POWER(10,-0.7933)=0.160953342

[0047] T570=POWER(10,-0.561)=0.274789415

[0048]T630=POWER(10,-0.141)=0.722769804

[0049] CIELAB is used to calculate the X, Y, and Z (stimulus values ​​of the three primary colors of red, green, and yellow) under a 10° observer's field of view and a D65 standard w...

Embodiment 2

[0067] The detection method of the present invention is used to detect the refined dry red wine of Changyu Cabernet Sauvignon produced in 2014 (aging time 5 years).

[0068] 1. Use a PTFE filter membrane with a pore size of 0.45 μm to filter the dry red wine, measure the absorbance of the filtered dry red wine under the conditions of 450nm, 520nm, 570nm and 630nm wavelengths under the 1mm path cuvette, and record it as A450, A520, A570 and A630, the data are 0.8357, 0.8166, 0.5357 and 0.1764 respectively.

[0069] Use Office-Excel to calculate the light transmittance Ti:

[0070] Ti=POWER(10,-Ai)(i=450, 520, 570, 630)

[0071] T450=POWER(10,-0.8357)=0.145982232

[0072] T520=POWER(10,-0.8166)=0.15254571

[0073] T570=POWER(10,-0.5357)=0.291272846

[0074] T630=POWER(10,-0.1764)=0.6661929

[0075] CIELAB is used to calculate the X, Y, and Z (stimulus values ​​of the three primary colors of red, green, and yellow) under a 10° observer's field of view and a D65 standard whit...

Embodiment 3

[0094] The detection method of the present invention was used to detect the impression Changyu dry red wine (Cabernet Sauvignon) produced in 2009 (actual aging time 10 years).

[0095] 1. Filter the dry red wine with a PTFE filter membrane with a pore size of 0.45 μm, measure the absorbance of the filtered dry red wine under the conditions of 450nm, 520nm, 570nm and 630nm wavelengths under a 1mm path cuvette, and record them as A450 , A520, A570, and A630, the data are 0.7602, 0.6598, 0.4251, and 0.1409, respectively.

[0096] Use Office-Excel to calculate the light transmittance Ti:

[0097] The formula is Ti=POWER(10,-Ai) (i=450, 520, 570, 630):

[0098] T450=POWER(10,-0.7602)=0.173700073

[0099] T520=POWER(10,-0.6598)=0.218876936

[0100] T570=POWER(10,-0.4251)=0.375750874

[0101] T630=POWER(10,-0.1409)=0.722936247

[0102] CIELAB is used to calculate the X, Y, and Z (stimulus values ​​of the three primary colors of red, green, and yellow) under a 10° observer's fiel...

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Abstract

The invention relates to an identification method of a dry red wine ageing year, and belongs to the technical field of dry red wine year detection. The invention discloses an identification method ofthe dry red wine ageing year. The method is characterized by determining a linear relationship between chemical indexes in the dry red wine and ageing years; the linear regression equation is as follows: T=-2.664 + 0.117 * hab + 0.982 * PAR+ 0.211 * C + 0.07 * D. The method has the beneficial effects that according to the linear relationship between chemical indexes in the dry red wine and ageingyears, whether the dry red wine deviates from an expected aging process to reduce the sensory quality due to abnormal conditions can be evaluated at any time, and whether a chemical index value in thedry red wine is consistent with an ideal value can be judged by predicting whether the aging time is consistent with the actual time.

Description

technical field [0001] The invention relates to a method for identifying the vintage of dry red wine, belonging to the technical field of dry red wine vintage detection. Background technique [0002] Dry red wine refers to an alcoholic beverage with a sugar content (calculated as glucose) of less than or equal to 4.0 g / L obtained from red grapes as raw materials through mixed fermentation of pomace and grape juice. Grape raw materials determine the quality of dry red wine to a large extent, but as an agricultural product, the quality of grapes is greatly affected by the climate of the year, so the quality of the same wine from the same winery will vary in different years. The concept of wine vintage came into being, and the price of a good vintage wine from the same producer will be several times that of a mediocre vintage. With the improvement of people's quality of life, the demand for high-quality dry red wine is increasing, resulting in more and more fake vintages in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N30/02G01N30/86
CPCG01N21/31G01N30/02G01N30/8631
Inventor 李记明韩国民李超阮仕立赵虎代玲敏
Owner YANTAI CHANGYU PIONEER WINE CO LTD