Method for detecting exogenously added ethyl caproate and ethyl lactate in liquor

A technology of ethyl lactate and ethyl hexanoate, which is used in testing food, measuring devices, testing beverages, etc., can solve the problem of high operation and maintenance costs, solve the lack of detection methods and technical methods, protect intellectual property rights and consumers Benefits, the effect of normative development

Active Publication Date: 2016-03-30
CHINA NAT RES INST OF FOOD & FERMENTATION IND CO LTD
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  • Summary
  • Abstract
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Problems solved by technology

At present, there are also reports on the application of stable isotope technology in the liquor industry to identify the authenticity of products (such as paper: Isotope identification technology for solid-state liquor and solid-liquid liquor; patent: a method for identifying the authenticity of solid-state liquor), but the above-mentioned The research is mainly aimed at the detection of edible alcohol in liquor, but did not discuss whether the liquor contains exogenously added food additives such as ethyl caproate and ethyl lactate, and domestic related research is still assisted by relevant databases Identification, operation and maintenance costs are high

Method used

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  • Method for detecting exogenously added ethyl caproate and ethyl lactate in liquor
  • Method for detecting exogenously added ethyl caproate and ethyl lactate in liquor
  • Method for detecting exogenously added ethyl caproate and ethyl lactate in liquor

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Experimental program
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Effect test

Embodiment 1

[0019] a) Obtained 11 new distilled base liquor samples of Luzhou-flavor liquor from a traditional solid-state liquor company, as real samples without external addition of ethyl caproate and ethyl lactate;

[0020] b) Purchase 4 liquor samples from the market that are nominally not added with ethyl caproate and ethyl lactate;

[0021] c) Determine the δ of ethyl caproate and ethyl lactate of real samples 13 C value (denoted as δ 13 C already And δ 13 C milk );

[0022] d) Select n-propanol as the endogenous carbon isotope marker of ethyl caproate and ethyl lactate, and determine the δ of n-propanol in real samples 13 C value, recorded as δ 13 C N-propanol .

[0023] e) Calculate the difference and the standard deviation of the carbon isotope ratio between ethyl caproate and n-propanol, ethyl lactate and n-propanol (see Table 1), it can be seen that ethyl caproate and the standard deviation of the difference N-Propanol δ 13 The distribution range of C difference is -8.86‰~-10.55‰, ...

Embodiment 2

[0031] A) Select the new distilled base wine sample A without adding ethyl caproate and ethyl lactate as the reference sample;

[0032] B) Add the food additives ethyl caproate and ethyl lactate into sample A in the proportions of 1:9, 2:8, 4:6, 6:4 and 8:2, and blend 5 new process liquors;

[0033] C) Determine the δ of n-propanol, ethyl caproate and ethyl lactate in sample A and 5 new process liquors 13 C value, calculate the difference Δ between the carbon isotope of ethyl caproate and ethyl lactate respectively in n-propanol 13 C, the results are shown in Table 3.

[0034] Table 3 Descriptive statistics of sample determination

[0035]

[0036] It can be seen from Table 3 that the carbon isotope difference between ethyl caproate and ethyl lactate and n-propanol in the new process liquor Δ 13 C decreases with the increase of the added ethyl caproate content, and increases with the added ethyl lactate content, and when the added amount of ethyl caproate and ethyl lactate exceeds 20%,...

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Abstract

The invention relates to a method for detecting exogenously added ethyl caproate and ethyl lactate in liquor on the basis of a stable isotope technique and principle and belongs to the technical field of authenticity identification of liquor. The method mainly comprises steps as follows: (1), the carbon isotope composition of a target chemical compound (ethyl caproate and/or ethyl lactate) in a fragrance type real liquor sample is detected, and the carbon isotope composition of a carbon isotope endogenous marker of the target chemical compound is detected, and the average difference of delta13C values between the target chemical compound and an internal standard substance as well as the standard deviation sigma is determined; (2), delta13C values of the target chemical compound and the internal standard substance of the target chemical compound in the to-be-detected liquor sample are detected, and the difference value delta13C (to-be-detected sample) of the target chemical compound and the internal standard substance is calculated; (3), whether the to-be-detected sample contains the exogenously added ethyl caproate and/or ethyl lactate is judged. The method used for effectively detecting whether the liquor contains exogenously added ethyl caproate and/or ethyl lactate is established with a stable isotope technique.

Description

Technical field: [0001] The invention relates to a method for identifying the authenticity of liquor based on stable isotope technology, and belongs to the technical field of authenticity identification of liquor products. Background technique: [0002] Liquor is a unique distilled spirit product in China, and it is listed as the world's top six distilled spirits alongside brandy, scotch whiskey, vodka, rum and gin. Liquor is a traditional product with a long history of the Chinese nation, and it is also an indispensable drink with profound historical and cultural heritage to meet people's continuously progressing material and spiritual cultural needs. At present, the liquor industry has become an important part of my country's food industry: In 2014, the cumulative output of my country's liquor industry was 12.5713 million tons, the annual sales income of the liquor industry was 525.9 billion yuan, and the total profit was 69.9 billion yuan. [0003] According to the provisions o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/14
CPCG01N33/146
Inventor 钟其顶王道兵
Owner CHINA NAT RES INST OF FOOD & FERMENTATION IND CO LTD
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