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Novel alcohol degree detection method and apparatus

A detection device and technology of alcohol content, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, etc., which can solve the problems of difficult real-time monitoring, heavy equipment, and failure to consider the influence of temperature and humidity and other issues to achieve the effect of ensuring authenticity, easy operation and good softness

Active Publication Date: 2015-10-14
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Color-sensitive sensor technology is a new method of gas characterization that has emerged in recent years. It uses the color difference before and after the reaction between the color-sensitive sensor and the gas to be measured to conduct qualitative and quantitative analysis of the gas to be measured. In recent years, color-sensitive sensor technology has been used in food and the field of agricultural product detection have been related applications, such as the patent "a method and device for detecting fish freshness based on olfactory visualization" (application number: 201010262347.50) discloses a method and device for olfactory visual detection of fish freshness, but the device It is relatively bulky, and its image acquisition device is a scanner, which is difficult to meet the requirements of real-time monitoring; the patent "a portable detection device for meat freshness" discloses a portable detection device for freshness of meat food, although the device is relatively portable, However, it does not consider the influence of temperature and humidity on the volatile gases of the sample
At present, the use of color-sensitive materials for real-time detection of alcohol content in solid-state fermentation has not been reported.

Method used

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  • Novel alcohol degree detection method and apparatus
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  • Novel alcohol degree detection method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: A kind of novel alcohol degree detection device

[0038] like figure 1 As shown, a detection device for alcohol content in a solid-state fermentation process includes a host computer 1, a 3CCD camera 2, an LED integrating sphere light source 3, a base 5, a gas reaction chamber 8, an air inlet 9, an air outlet 4, a vacuum pump 10, A gas collection probe 11 and a temperature sensor 13 with a characteristic filter screen 14.

[0039] The host computer 1 is connected to the 3CCD camera 2, and the 3CCD camera 2 is installed on the top of the LED integrating sphere light source 3, which is used to obtain the red (R), green (G) and blue (B) components of the front and rear sensors. The image of the LED integrating sphere light source 3 is installed on the base 5, wherein the top cover of the LED integrating sphere light source 3 is made of optically transparent glass;

[0040] The base 5 is installed above the gas reaction chamber 8, and an air inlet 9 and an ...

Embodiment 2

[0047] Embodiment 2: liquid alcohol content detection method based on color sensitive material

[0048] For the alcohol content test of multi-component gases in solid-state fermentation, a sensor array composed of multiple color-sensitive materials is used to establish a model in combination with multivariate analysis to detect the alcohol content of volatile gases.

[0049] For the test of the alcohol content of liquids with very little content of other components, the color change of the TPPMncl color sensitive material in the sensor can be used directly to test the alcohol content.

[0050] The change in color-sensitive materials reacting to different concentrations of alcohol was related by a multiple regression model with the formula:

[0051]

[0052] In the formula, Y is the alcohol content, X R is the color change of the R channel image before and after the reaction between the color-sensitive material and the gas to be detected, X G The color change of the ima...

Embodiment 3

[0057] Embodiment 3: Solid-state alcohol detection based on color sensitive material

[0058] (1) The samples in this example come from vinegar fermented grains at different fermentation stages in Zhenjiang Hengshun acetic acid fermentation workshop, a total of 60 samples.

[0059] (2) GC-MS was used to detect the ethanol content of different samples.

[0060] (3) Production of color-sensitive sensors; TPPMn, TPPZn, OEPMnCl, TripMn, TPPMnF, TPPMnOCH 3 Six kinds of porphyrin compounds were dissolved in chloroform solvent, the concentration was 1mg / mL, two acid-base indicators, neutral red and bromocresol green, were dissolved in ethanol, the concentration was 1mg / mL, passed Micro-spotting capillary tubes are printed and dyed on polyvinylidene fluoride (PVDF) membranes to make color-sensitive material sensor arrays;

[0061] (4) Place the prepared gas sensor array in the reaction chamber, and the 3CCD camera (RGB three-color) acquires the image of the sensor before the reactio...

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Abstract

The invention relates to a novel alcohol degree detection method and apparatus, especially relates to an detection method and apparatus based on a color sensitive material, wherein the detection method and apparatus are used to detect the alcohol degree during the fermentation process in real time, and belongs to the fields of fermented product raw material utilization and quality control. The apparatus comprises an upper computer, three CCD cameras, a LED integrating sphere light source, a base, a gas reaction chamber, an air inlet, an air outlet, a vacuum pump, a gas collecting probe with a special filter screen, and a temperature sensor. After the gas collected by the gas colleting probe reaches the gas reaction chamber, the gas reacts with the color sensitive material sensor arrays, which are adhered on the polyvinylidene difluoride membrane in the array area of a gas sensor; the color sensitive material is sensitive to alcohol, and thus the alcohol degree can be determined by watching the color change after the color sensitive material reacts with ethanol. The provided method and apparatus has the advantages that the operation is simple and convenient, the method is intelligent; the apparatus is simplified and is convenient to move; at the same time the detection system cost is reduced; and furthermore, the provided apparatus can be used to detect liquid alcohol and semi-solid alcohol.

Description

technical field [0001] The invention relates to a novel detection method and device for alcohol content, in particular to a real-time detection method and device for alcohol content in a solid-state fermentation process based on color-sensitive material technology, and belongs to the field of brewing raw material utilization and quality control. Background technique [0002] my country has a long history of traditional fermentation, and wine and vinegar foods made from natural fermentation of grain are very popular among consumers. Since the substrate of solid-state fermentation is conducive to the growth of microorganisms, and can produce some enzymes or other metabolites that are not produced in liquid medium, the products obtained by solid-state fermentation are of better quality and are more favored by consumers. For example, pure grain solid liquor has a rich aroma, and the vinegar produced by solid-state fermentation has a soft sour taste and a sweet and mellow afterta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 林颢管彬彬金鸿娟宋奔腾赵杰文
Owner JIANGSU UNIV
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