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Method for measuring content of diacetyl in white spirit

A diacetyl content, liquor technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems affecting the quality of liquor, and achieve the effects of saving analysis costs, reducing losses, and causing little harm to the human body

Active Publication Date: 2012-11-14
KWEICHOW MOUTAI COMPANY
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that adding an appropriate amount of diacetyl has an important flavor effect on beer, wine and other wines, but if its content is too high, it will significantly affect the quality of wine

Method used

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  • Method for measuring content of diacetyl in white spirit
  • Method for measuring content of diacetyl in white spirit
  • Method for measuring content of diacetyl in white spirit

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0014] The method for determining diacetyl content in liquor of the present invention comprises wine sample dilution, static headspace gas sampling and gas chromatography-mass spectrometry analysis steps, and the gas chromatography-mass spectrometry analysis step is to qualitatively and quantitatively diacetyl analyze.

[0015] Specifically: Dilute the wine sample to be tested to an alcohol content of 10%-30% (V / V), and then use static headspace sampling technology and gas chromatography-mass spectrometry to analyze the content of diacetyl in liquor.

[0016] In the static headspace gas sampling step, first add 10 mL of the liquor sample diluted to 10% to 30% (V / V) obtained in the wine sample dilution step into a 20 mL headspace sample bottle, and then add NaCl to supersaturation. The sample bottle is heated and incubated, the heating temperature is 60-80° C., and the heating time is 10-25 minutes. After the heating incubation is completed, static headspace gas sampling is per...

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PUM

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Abstract

The invention discloses a method for measuring content of diacetyl in white spirit, and belongs to the field of research for flavor of white spirit. The static headspace sampling technology and the gas chromatography-mass spectrometer (GC-MS) technology are applied to build the method for quickly measuring the content of the diacetyl in the white spirit. A static headspace sampling method is optimized to obtain the optimal static headspace sampling analysis condition including that the alcohol content of a white spirit sample is diluted to range from 10%(V / V) to 30%(V / V), and then gas is sampled after the white spirit sample is incubated at the constant temperature ranging from 70 DEG C to 80 DEG C for 10-25 minutes. Results show that the method has excellent selectivity and sensitivity, and is applicable to quantitatively researching for the diacetyl in the white spirit.

Description

technical field [0001] The invention relates to a method for measuring liquor components, in particular to a method for measuring diacetyl content in liquor. Background technique [0002] Diacetyl is the main flavor substance in liquor. Its dilute solution has a creamy smell. In the liquor body, it can make the liquor taste mellow, sweet, clean and refreshing, and can enhance the aroma. An appropriate amount of diacetyl can also promote the volatilization of ester aroma, making the aroma full and special. Studies have shown that adding diacetyl in an appropriate amount has an important flavor effect on beer, wine and other wines, but if its content is too high, it will significantly affect the quality of wine. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a method for measuring the diacetyl content in liquor, so as to ensure proper and reasonable control of the diacetyl content in the liquor brewing proce...

Claims

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Application Information

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IPC IPC(8): G01N30/88
Inventor 王莉林琳汪地强雷良波刘玄杨帆杨代永吕云怀
Owner KWEICHOW MOUTAI COMPANY
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