Matrix for evaluating capability of producing hexanoic acid by pit mud and method for evaluating capability of producing hexanoic acid by pit mud

A technology for pit mud and caproic acid, which is applied in the field of winemaking, can solve the problems of no effective evaluation method for the capacity of pit mud to produce caproic acid, and achieve the effects of simple detection method and accurate result.

Inactive Publication Date: 2019-08-16
SICHUAN MIANYANG FORGOOD DISTILLERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the liquor industry, there is no effective evaluation method for the caproic acid production capacity of pit mud

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] This embodiment provides a matrix for evaluating the ability of pit mud to produce caproic acid, and a method for evaluating the ability of pit mud to produce caproic acid using the matrix.

[0069] The pH value of the pit mud to be evaluated was detected to be 6.2.

[0070] The matrix used to evaluate the ability of pit mud to produce caproic acid includes the following components in mass percentage:

[0071] 0.3% CH 3 COONa, 0.04% (NH 4 ) 2 SO 4 , 0.03% K 2 HPO 4 , 0.01% MgSO 4 , 0.2% yeast paste and 4% 95% vol alcohol, the rest of the water.

[0072] The pH of the matrix was adjusted to pH 6.2 with lactic acid.

[0073] The method for evaluating the ability of pit mud to produce hexanoic acid using the above matrix is ​​as follows;

[0074] Take 3 150ml Erlenmeyer flasks, and put 144mL of substrate except alcohol into the Erlenmeyer flasks.

[0075] Autoclave the flask at 0.1Mpa for 30 minutes, cool to 32°C, take 1.5g of pit mud to be evaluated and add it t...

Embodiment 2

[0079] This embodiment provides a matrix for evaluating the ability of pit mud to produce caproic acid, and a method for evaluating the ability of pit mud to produce caproic acid using the matrix.

[0080] The pit mud to be evaluated in this embodiment is the same as the pit mud to be evaluated in Example 1.

[0081] The matrix used to evaluate the ability of pit mud to produce caproic acid includes the following components in mass percentage: 0.1% CH 3 COONa, 0.02% (NH 4 ) 2 SO 4 , 0.01% K 2 HPO 4 , 0.008% MgSO 4 , 0.1% yeast extract; 2% volume fraction is 92% ethanol aqueous solution, and the remainder is water.

[0082] The pH of the matrix was adjusted to pH 6.2 with lactic acid.

[0083] The method for evaluating the ability of pit mud to produce hexanoic acid using the above matrix is ​​as follows;

[0084] Take 3 150ml Erlenmeyer flasks, and put 144mL of substrate except alcohol into the Erlenmeyer flasks.

[0085] Autoclave the flask at 0.12Mpa and 115°C for 3...

Embodiment 3

[0090] This embodiment provides a matrix for evaluating the ability of pit mud to produce caproic acid, and a method for evaluating the ability of pit mud to produce caproic acid using the matrix.

[0091] The pH value of the pit mud to be evaluated is 4.8.

[0092] The matrix used to evaluate the ability of pit mud to produce caproic acid includes the following components in mass percentage:

[0093] 0.3% CH 3COONa, 0.04% (NH 4 ) 2 SO 4 , 0.03% K 2 HPO 4 , 0.01% MgSO 4 , 0.2% yeast extract and 4% 95% vol alcohol, and the balance is water.

[0094] The pH of the matrix was adjusted to pH 4.8 with acetic acid.

[0095] The method for evaluating the ability of pit mud to produce hexanoic acid using the above matrix is ​​as follows;

[0096] Take 3 150ml Erlenmeyer flasks, and put 144mL of hexanoic acid production capacity evaluation medium of pit mud except alcohol into the Erlenmeyer flasks;

[0097] Autoclave the flask at 0.1Mpa for 30 minutes, cool to 32°C, take 1.5...

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Abstract

The invention relates to the technical field of wine making, in particular to a matrix for evaluating capability of producing hexanoic acid by pit mud and a method for evaluating the capability of producing the hexanoic acid by the pit mud. The matrix for evaluating the capability of producing the hexanoic acid by the pit mud comprises a hexanoic acid bacteria culturing medium and a pH adjustmentreagent, wherein the pH adjustment is selected from one or more of lactic acid, hexanoic acid, ammonium bicarbonate and ammonium carbonate, and a pH value of the hexanoic acid bacteria culturing medium is same as a pH value of a to-be-evaluated pit mud. The pH value of the matrix for evaluating the capability of producing the hexanoic acid by the pit mud is same as the pH value of the to-be-evaluated pit mud, and the situation that the final content of the hexanoic acid is affected by the pH value to cause inaccurate evaluation result is prevented; and the lactic acid, the hexanoic acid, the ammonium bicarbonate and the ammonium carbonate are selected to perform pH adjustment on the matrix, and the problem that other impurities are introduced to affect growth and metabolism of hexanoic acid bacteria and affect a final evaluation result can be prevented.

Description

technical field [0001] The present application relates to the technical field of brewing, in particular, to a matrix for evaluating the ability of pit mud to produce caproic acid and a method for evaluating the ability of pit mud to produce caproic acid. Background technique [0002] In the production of Luzhou-flavor Daqu liquor, the quality of pit mud is closely related to the quality of Luzhou-flavor Daqu base wine, and the ability of pit mud to produce caproic acid is the most important basis for evaluating the quality of pit mud. At present, there is no effective evaluation method for the caproic acid production capacity of pit mud in the liquor industry. Contents of the invention [0003] The purpose of the embodiment of the present application is to provide a matrix for evaluating the ability of pit mud to produce caproic acid and a method for evaluating the ability of pit mud to produce caproic acid. evaluation method. [0004] The first aspect of the present app...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor卢中明杜礼泉郑敏谢菲唐聪蒲浩
OwnerSICHUAN MIANYANG FORGOOD DISTILLERY