A novel detection method and device for alcohol content

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...

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.

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