Method for identifying wine producing area based on stable isotope ratio

A stable isotope and wine technology, applied in the field of identifying the authenticity of wines from origins, can solve the problems of lack of effective identification techniques and methods of wines from origins, unfavorable healthy development and orderly competition of the wine industry, and damage to consumers' interests and right to know, etc. To achieve the effect of solving the technical problems of authenticity identification of origin, promoting healthy development and maintaining interests

Active Publication Date: 2014-04-09
CHINA NAT RES INST OF FOOD & FERMENTATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The national standard GB 15037 "Wine" defines the concept of wine of origin, and stipulates that "the proportion of wine made from grapes of the marked origin shall not be less than 80% (volume fraction) of the wine content" to become wine of origin. There is still a lack of effective technical means and methods for identifying wines from the place of origin. Only relying on corporate self-discipline and the existing standard management system cannot effectively regulate the market. Driven by interests, very few companies use fake and shoddy products to pretend to be high-quality wines from the place of origin to sell in the market. High profits have a great impact on the wine market, which is not conducive to the healthy development and orderly competition of my country's wine industry, and also damages the interests of consumers and the right to know

Method used

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  • Method for identifying wine producing area based on stable isotope ratio
  • Method for identifying wine producing area based on stable isotope ratio
  • Method for identifying wine producing area based on stable isotope ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Ethanol δ in wine 18 O determination

[0022] a) Take the known δ 18 The ethanol of O is diluted with acetone and mixed well, ready for injection;

[0023] b) Dilute the wine to be tested with acetone, mix well and prepare for injection;

[0024] c) Determine the ethanol δ in the solution in steps a) and b) as follows: 18 O

[0025] The chromatographic conditions are as follows: molecular sieve capillary column (50m×0.32mm×0.45mm); carrier gas is high-purity helium (99.999%); adopts constant flow mode (1.2mL / min); column temperature adopts programmed heating: initial temperature 110 ℃, hold for 1 min, heat up to 145℃ at 5℃ / min, keep for 7 min; combustion tube temperature: 1030℃; cracking tube temperature is 1280℃; injection volume 1.0μL; mass spectrometry parameters: ion source vacuum 1.8×10 -6 mBar, voltage 3.06KV; before the sample measurement, calibrate the instrument with a standard sample;

[0026] c) Use the known δ 18 O ethanol for calibration isotope mass spectrometry re...

Embodiment 2

[0028] Example 2: Example of wine identification

[0029] a) Collect wine samples with authentic origin information from companies in Xinjiang, Shandong, Yunnan, etc., including 21 wine samples from Shandong origin, 20 wine samples from Xinjiang origin, and 20 wine samples from Yunnan origin;

[0030] b) 5 wine samples purchased from the market marked with origin in Xinjiang, Shandong, Yunnan and other places;

[0031] c) Ethanol δ in wine 18 O determination

[0032] Pipette the wine sample to be tested into the sample vial, add acetone solution to dilute and mix, and determine the δ of ethanol in the sample as follows 18 O, the chromatographic conditions are as follows: the chromatographic conditions are as follows: molecular sieve capillary column (50m×0.32mm×0.45mm); carrier gas is high-purity helium (99.999%); adopts constant flow mode (1.2mL / min); adopts column temperature Program temperature rise: initial temperature 110℃, keep for 1min, heat up to 145℃ at 5℃ / min, keep for 7min;...

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Abstract

The invention relates to a method for identifying original wines based on stable isotope ratio, and belongs to the technical field of trueness identification of wines. The method mainly comprises the following steps of: (1) measuring the delta 180 of alcohol contained in a true original wine sample by adopting a gas phase chromatography / stable isotope mass spectrometry coupling technology, and establishing a delta 180 database of the true original wine sample; (2) measuring the delta 180 of the alcohol contained in a wine sample to be measured; (3) analyzing the significant difference of the delta 180 of an alcohol content contained in the wine sample to be measured and the delta 180 of the alcohol contained in the true original wines, wherein if no significant difference exists, the wine sample to be measured and the true sample are indicated to be from a same producing area, and if the significant difference exists, the wine sample to be measured and the true sample are indicated to be from different producing area. The method capable of accurately identifying the original wines, which is disclosed by the invention, is established by utilizing a stable isotope mass spectrometry technology, can be used for solving the technical problem of national original wines on market supervision and is conductive to specifying the market behaviors, protecting the benefits of consumers and legal enterprises and promoting the healthy and orderly development of a wine industry.

Description

Technical field: [0001] The present invention relates to a method for identifying the authenticity (for example, the authenticity of the origin of the origin) of the wine of origin based on the stable isotope ratio. The invention belongs to the technical field of authenticity recognition of wine products. Background technique: [0002] The quality of wine products is closely related to the place of origin, variety and year. In the development process of wine, the place of origin has gradually become an iconic feature of its quality. [0003] The origin wine is the product of the origin of the grape raw materials, brewing technology and microorganisms, and has a unique style and typical characteristics. The world's famous wines are all from excellent wine producing areas, and the producing areas have gradually become the iconic characteristics of wine quality to prevent counterfeit and inferior products. [0004] In recent years, with the continuous growth of the wine industry, my ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02
Inventor 钟其顶王道兵熊正河
Owner CHINA NAT RES INST OF FOOD & FERMENTATION IND CO LTD
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