A method for quickly identifying the production year of Ningxia wolfberry by taste fingerprint

Abstract

The invention discloses a method for rapidly identifying the years of production of lycium barbarum by gustation finger-prints. The method comprises the following steps: selecting samples of lycium barbarum produced in different years, adding cooled boiled water at temperature of 60-80 DEG C into the lycium barbarum samples at a set solid-to-liquid ratio of 1:15 to 1:25, extracting for 5-15 minutes, filtering to obtain leach liquor of gustation matters, contacting an electronic tongue sensor array with the sample leach liquor so as to obtain sensor responding signals, extracting characteristic data from the gustation finger-prints, establishing correlation between the gustation finger-prints and the years of production by virtue of multiple linear regression analysis, and establishing a module for predicating the years of production, thus realizing the purpose of rapidly identifying the years of production of the lycium barbarum by the gustation finger-prints. With the adoption of the method, the detection difficulty caused by the fact that external characters of lycium barbarum are similar, and the detection on internal bioactive constituents is complicated and wastes time is solved, the lycium barbarum produced in different years can be conveniently, rapidly and objectively evaluated, and therefore, the basis is provided for accurately, rapidly and reliably detecting medicinal values of lycium barbarum.

Description

technical field [0001] The invention belongs to the field of rapid detection of characteristic agricultural products, and relates to a method for detection of medicinal and edible raw materials, in particular to a method for rapidly identifying the production year of Ningxia wolfberry by using taste fingerprints. Background technique [0002] Ningxia wolfberry (Lyciumbararum L.), the mature fruit of the multi-branched shrub of the Solanaceae (Solanaceae) Lycium genus (Lycium), is a traditional and precious medicinal material in my country. pharmacological effects. Bioactive components such as flavonoids, carotenoids and Lycium barbarum polysaccharides are the main components of Lycium barbarum efficacy. According to research reports, the above-mentioned biologically active ingredients show a downward trend with the prolongation of storage time, which reduces their important medicinal value and even endangers the safety of consumers. [0003] The evaluation methods of the qu...

AI Technical Summary

Problems solved by technology

In the quality evaluation of wolfberry, the content of taste substances in wolfberry leaves has been determined, but there is no report on the use of taste fingerprints to analyze the internal quality of wolfberry

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