Device for detecting quality of Silybum marianum seed and detecting method thereof

Abstract

The invention discloses a device for detecting the quality of a Silybum marianum seed, which belongs to non-destructive testing technology for the quality of raw material of traditional Chinese medicine. The device comprises a spectrum signal collecting system and a microprocessor electrically connected with the spectrum signal collecting system; wherein the spectrum signal collecting system is used for spectral scan for Silybum marianum seeds to be tested, collecting diffuse reflection near-infrared signals of the Silybum marianum seeds to be tested and then transmitting the signals to the microprocessor. The invention further discloses a method for detecting the quality of Silybum marianum seeds. The invention applies the near-infrared optical detection means to the process of non-destructive testing technology for the quality of raw material of traditional Chinese medicine, therefore the method has the advantages of high detecting precision, good consistency of results and high automation degree. The time for conducting one-time detection would not exceed one minute, therefore the invention can be conveniently applied to on-site quality detection of the primary raw material of tradition Chinese medicine so as to comprehensively evaluate the quality of the Silybum marianum seeds with great efficiency.

Description

technical field [0001] The invention relates to the technical field of non-destructive detection of the quality of traditional Chinese medicine raw materials, in particular to a rapid non-destructive detection device and method for the quality of milk thistle seeds based on near-infrared spectroscopy. Background technique [0002] Milk thistle, also known as milk thistle, milk thistle, mouse le, and milk thistle, belongs to the family Asteraceae and is a medicinal herb. Originally produced on the Mediterranean coast, it is now widely distributed in Europe, North America, Asia, Africa and other places. It is cultivated in Shaanxi, Heilongjiang, Liaoning, Jiangsu, Hubei and other places in my country. Milk thistle seed is the seed of milk thistle, long flat oval, achene, about 7mm long, 3mm wide, 1-2mm thick, protruding at the top, slightly convex on one side, there are three kinds of dark brown, black gray and white . [0003] Silymarin is the total extract of medicinal act...

AI Technical Summary

Problems solved by technology

However, according to the standard of China's "Chemical Drug Landmark Upgrade National Drug Standard Volume 7 WS-10001-(HD-0600)-2002", only by the loss on drying method to detect moisture, HPLC (High Performance Liquid Chromatography, High Performance Liquid Chromatography, ) to detect the total element content of silymarin, as well as the detection of ash, heavy metals, pesticide residues, etc., has the following deficiencies: (1) It belongs to conventional physical and chemical analysis methods, although it has high accuracy and reliability, it is destructive Detection, the detection time is long, not suitable for the rapid detection of the quality of raw materials

(2) Time-consuming, when a large number of raw materials are purchased on the market, because the detection time is too long, it will affect the entire purchase and production process; (3) The detection items are not comprehensive, lacking the detection of milk thistle oil and protein, and it is impossible to detect milk thistle Comprehensive evaluation of raw material quality of silybum seeds

"GB / T 5512-2008 Determination of Crude Fat Content in Grains" and "GBT 5511-2008 Determination of Nitrogen Content in Cereals and Beans and Kjeldahl Method for Calculation of Crude Protein Content" can detect fat and protein content respectively, but the samples need to be Destruction, time consuming, consumption of chemical reagents

However, because the quality (content and moisture) of milk thistle seeds is greatly affected by the climate and environment of different growing regions, in the process of selecting milk thistle seeds, often because the quality data of milk thistle seeds cannot be obtained quickly, The best price point and quality point for delayed purchase, so there is an urgent need to develop a method for non-destructive testing of milk thistle seeds that can quickly and comprehensively evaluate the quality of raw materials

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