Electronic tongue sensor array and method for controlling quality of beverage products

A sensor array and electronic tongue technology, which is applied to electronic tongue for quality control of beverage products, in the field of electronic tongue sensor array, can solve problems such as lack of application system for beverages

Inactive Publication Date: 2011-05-11
ZHEJIANG GONGSHANG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, although there are many kinds of electronic tongue systems, the application fields mainly lie in ordinary sample differentiation and detection, and there is a lack of a complete application system for beverage detection.

Method used

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  • Electronic tongue sensor array and method for controlling quality of beverage products
  • Electronic tongue sensor array and method for controlling quality of beverage products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] like figure 1 The sensor array shown is composed of a working electrode 1 , an auxiliary electrode 2 and a reference electrode 3 , and the auxiliary electrode 2 is arranged in the middle of each working electrode 1 . The reference electrode 3 is a platinum electrode. The diameter of the sensor array is Φ14-16mm, and the length is 80-90mm. The working electrode and the auxiliary electrode are Φ1-2mm disk electrodes, and the reference electrode is a 1×5mm metal column electrode. The effective metal column length of all electrodes is 6-8mm, and the surroundings are wrapped and fixed by polytetrafluoroethylene 4. The other end of the electrode is led out by 2×14mm copper pillars 5, and the copper pillars 5 and specific metal pillars are connected by copper wires 6. The sensor array constructed in this way is easier to control the surface area of ​​the working electrode than the wire electrode as the sensor, and the collected current response signal is more accurate.

Embodiment 2

[0017] The method for quality control of beverage products using an electronic tongue containing the sensor array described in Example 1: use the electronic tongue to detect standard samples of beverage products, collect data, and establish a standard sample taste database; then use the electronic tongue to collect the taste of the sample to be tested Data, the data of the taste of the sample to be tested is fitted with the previously established standard sample taste database, and the fitted database is subjected to principal component analysis. When the principal component score of the fitted data is within the standard range, it is judged that the taste of the sample can be Meet the qualified standard; when the principal component score of the fitted data is not within the standard range, it is judged that the taste of the product is unqualified.

[0018] Database establishment: Five kinds of tea beverages (barley tea, iced green tea, jasmine clear tea, iced black tea and ho...

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Abstract

The invention discloses an electronic tongue sensor array and a method for controlling the quality of a beverage product. The electronic tongue sensor array consists of working electrodes, an auxiliary electrode and a reference electrode, wherein the auxiliary electrode is arrayed in the middle of the working electrodes; and all the working electrodes have the same distance from the auxiliary electrode. The invention further provides a method for controlling the quality of the beverage product by adopting the electronic tongue including the above sensor array, which comprises the steps of: detecting a standard sample of the beverage product by using the electronic tongue, acquiring data, establishing a standard sample taste database; then acquiring the taste data of a sample to be tested by using the electronic tongue, subjecting the taste data of the sample to be tested and the previously established standard sample taste database to fitting, and implementing main ingredient analysis on the fitted database.

Description

technical field [0001] The invention relates to the field of food detection, in particular to an electronic tongue sensor array and a method for controlling the quality of beverage products by using the electronic tongue containing the sensor array. Background technique [0002] From the perspective of its basic structure, the electronic tongue can be divided into three main components: (1) interactive sensor array; (2) signal excitation acquisition module; (3) pattern recognition or multivariate statistical analysis methods. As one of the three main components of the electronic tongue, the sensor array plays an extremely important role in the construction of the electronic tongue. Based on the original design principle of the electronic tongue and the practice, the electronic tongue sensor array has the following two characteristics: (1) The sensors that make up the sensor array should have certain interaction sensitivity or low selectivity and non-specificity. Interaction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26
Inventor 张东星罗之纲邓少平田师一
Owner ZHEJIANG GONGSHANG UNIVERSITY
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