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Method for predicting content of ethyl carbamate in Maotai-flavor liquor

A technology of medium urethane and ethyl carbamate, which is applied in the field of prediction of urethane content in Maotai-flavored liquor, and can solve problems such as the absence of a reliable and accurate prediction method for urethane content , to achieve the effect of accurate content, reliable results and simple operation

Pending Publication Date: 2021-09-03
KWEICHOW MOUTAI COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although the content of ethyl carbamate can be used as one of the important indicators to judge the safety of beverages such as wine, in the traditional technology, there is no method that can reliably and accurately predict the content of ethyl carbamate in Maotai-flavored liquor after different storage times. method of prediction

Method used

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  • Method for predicting content of ethyl carbamate in Maotai-flavor liquor

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Embodiment 1

[0035] Take two to seven rounds of new rounds of Maotai-flavored liquor, store them at 60°C, 70°C or 80°C for 24 hours, use the prediction formula to calculate the predicted value of EC (X), and the actual value of EC (X t )Compare:

[0036] 1) Detect the EC content in the new round of wine samples, and its EC is the initial value (X 0 );

[0037] 2) Divide the above-mentioned round wine into two parts, named as sample 1 and sample 2 respectively;

[0038] 3) Put sample 1 into a pottery jar and seal it, and store it normally at room temperature for t years (1≤t≤4). After the storage, test its EC content, and its value is the true value of EC (X t );

[0039] 4) Put sample 2 into a pottery jar and seal it, heat it in an incubator and store it at 60°C, 70°C or 80°C, store it for 24 hours, and test its EC content after the end, and the value is the measured value of EC (X 1 );

[0040] 5) According to the EC content prediction formula:

[0041] X=X 0 +(X 1 -X 0 )ln kt(1...

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Abstract

The invention discloses a method for predicting the content of ethyl carbamate in Maotai-flavor liquor, which comprises the following steps of: constructing a prediction formula according to the incidence relation between the storage temperature change and the content change of the ethyl carbamate in the Maotai-flavor liquor, and predicting the content of the ethyl carbamate in the Maotai-flavor liquor in the storage process by utilizing the prediction formula. The prediction formula is X=X0+(X1-X0) lnkt, X0 refers to the initial value of the ethyl carbamate in the unstored Maotai-flavor liquor, X1 refers to the measured value of the ethyl carbamate measured after the Maotai-flavor liquor is stored at the preset temperature for the preset time, t refers to the actual storage time, k refers to the conversion coefficient, and X refers to the predicted value of the ethyl carbamate content in Maotai-flavor liquor after the actual storage time.. The prediction method disclosed by the invention is simple to operate and reliable in result, and the content of the ethyl carbamate in the stored Maotai-flavor liquor can be accurately predicted.

Description

technical field [0001] The present application relates to the field of food safety monitoring, and more specifically relates to a method for predicting the content of ethyl carbamate in Maotai-flavored liquor. Background technique [0002] Maotai-flavored baijiu is one of the basic flavor types of liquor in China. Its production process is to add grain twice a year and extract wine seven times in a large production cycle each year. Seven rounds of wine. However, the newly distilled round wine has the characteristics of sour, astringent, raw sand, new wine taste, rush, rough spicy, paste, dry taste, and insufficient aroma. After long-term storage, it can remove impurities and increase aroma, reducing the aroma of new wine. Stimulating, rough and spicy, increasing the mellowness and delicateness of the wine, making the fragrance elegant and round. [0003] Ethyl Carbamate (EC for short), also known as urethane, is an endogenous pollutant produced during the production and st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16C20/30G16C20/20
CPCG16C20/30G16C20/20
Inventor 王莉张思宇曾稳稳刘松聂叶赵尚碧杨帆
Owner KWEICHOW MOUTAI COMPANY
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