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Conductivity on-line monitoring method in beer fermentation process

A fermentation process and beer fermentation technology, applied in the field of beer brewing, can solve problems such as high price, inability to apply large-scale production, and easy damage, and achieve the effects of improving the quality of finished products, accurate online monitoring, and saving technical management levels.

Inactive Publication Date: 2006-02-15
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are enzyme electrodes with relevant parameters (such as reducing sugar, yeast number, etc.), they cannot be applied to large-scale production in a short time due to their high price and easy damage.

Method used

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  • Conductivity on-line monitoring method in beer fermentation process
  • Conductivity on-line monitoring method in beer fermentation process
  • Conductivity on-line monitoring method in beer fermentation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Experimental conditions: Take 11-degree wort from the saccharification workshop, heat it to boil, and then pass it through the whirlpool sedimentation tank for 30 minutes, and cool the wine with a thin-plate heat exchanger to a 100L fermenter. The amount of yeast added is 6‰. The oxygenation of the wort was 8ppm, and the temperature of the main fermentation was 10°C.

[0019] The monitoring steps are:

[0020] a. Use the acquisition system to collect a data point every 30 seconds to obtain the change in conductivity during the entire fermentation process. The average processing of the data is taken every 20 minutes, and the computer records the results as figure 1 . At the same time, synchronously detect reducing sugar, α-amino nitrogen or alcohol content in the fermenter, draw the contrast curve of conductivity and reducing sugar, α-amino nitrogen or alcohol content with fermentation time; figure 2 .

[0021] b. Using the least squares method and in conjunction w...

Embodiment 2

[0029] The 8-degree wort was taken from the saccharification workshop to conduct conductivity, reducing sugar, α-amino nitrogen or alcohol content detection, modeling and monitoring as in Example 1.

Embodiment 3

[0031] The 10-degree wort was taken from the saccharification workshop to conduct conductivity, reducing sugar, α-amino nitrogen or alcohol content detection, modeling and monitoring as in Example 1.

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Abstract

The on-line monitor method to the conductivity in beer fermentation process comprises, using the relation between conductivity and reducing sugar, alpha-amino nitrogen or alcohol degree to build opposite mathematic model; checking the real process and standard curve to realize detection to other parameters indirectly and monitor fermentation process. This method is rapid, synchronous and precise.

Description

technical field [0001] The invention relates to the field of beer brewing, in particular to a method for analyzing and monitoring technological parameters and variation rules of beer fermentation process by using the conductivity method. Background technique [0002] In China's current beer industry, beer fermentation production is still bound by traditional techniques. The theory of beer production science and technology lags behind the needs of actual production, especially in the quality inspection of beer production products. In recent decades, there has been no breakthrough, and the traditional analysis and sensory evaluation methods are still not free, which seriously restricts the development of the beer industry to a certain extent. Most of the detection in the production process is still done manually, which makes the parameters of the fermentation process seriously lag behind the production itself. Computer monitoring is also limited to such parameters as pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12C11/00
Inventor 赵长新窦少华张亮董亮
Owner DALIAN POLYTECHNIC UNIVERSITY
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