Method of using electronic tongue to rapidly detect bitterness of berberine hydrochloride

Abstract

The invention discloses a method of using an electronic tongue to rapidly detect the bitterness of berberine hydrochloride. The method comprises the following steps: preparing a standard solution of berberine hydrochloride; establishing an electronic tongue sensor array; pouring the standard solution into a special electronic tongue cup, putting an electronic tongue into a prepared sample to preheat the sensors, then putting the electronic tongue into a sample solution to collect the sample signals so as to obtain a corresponding LDA map and PCA map of the electronic tongue; obtaining the response value of the electronic tongue; subjecting the standard solution to qualitative analysis by means of PCA principal component analysis and LDA discrimination function analysis to obtain a map representing the relationship between the bitterness levels and the response values of the electronic tongue; detecting the berberine hydrochloride sample solution, and obtaining the bitterness level of the sample solution according to the relationship map. The provided method has the advantages that high prediction precision and simple operation, and cannot be easily influenced by external factors.

Description

technical field [0001] The invention belongs to the field of food science, and relates to berberine hydrochloride, in particular to a method for quickly detecting the bitterness of berberine hydrochloride with an electronic tongue. Background technique [0002] Berberine hydrochloride, also known as berberine, is an isoquinoline alkaloid mainly found in Berberidaceae plants such as Coptidis Rhizoma and Cortex Phellodendri. Berberine hydrochloride has been widely used in the treatment of intestinal infection, suppurative otitis media, bacillary dysentery, etc. Studies have shown that it also has a certain effect on tuberculosis, respiratory tract infection, acute tonsillitis and other diseases. [0003] With the urgent requirements for the evaluation and quality control of food and drug taste in the food and drug industry, there is an increasing demand for objective and rapid analytical diagnostic instruments such as electronic tongues. Strong practical significance. [000...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a kind of method that detects the bitter taste of berberine hydrochloride quickly with electronic tongue, described this method that detects the bitter taste of berberine hydrochloride fast with electronic tongue will solve the problem of traditional sensory In the evaluation, the sensory evaluation is highly subjective and has poor repeatability

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