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Method for nondestructive test authenticity detection of Chinese caterpillar fungus powder/tablets

A Cordyceps sinensis, non-destructive testing technology, applied in the direction of color/spectral characteristic measurement, etc., can solve the problems of cumbersome operation, consumption of samples, high testing cost, etc., and achieve the effect of accurate results, easy operation and low cost

Inactive Publication Date: 2016-04-13
QINGDAO SPRING MEDICAL RESOURCE TECH UTILIZATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: to propose a method for non-destructive detection of the authenticity of Cordyceps sinensis powder / powder sheet, to solve the problems of cumbersome operation, high detection cost and the need to consume samples in the traditional detection method

Method used

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  • Method for nondestructive test authenticity detection of Chinese caterpillar fungus powder/tablets
  • Method for nondestructive test authenticity detection of Chinese caterpillar fungus powder/tablets
  • Method for nondestructive test authenticity detection of Chinese caterpillar fungus powder/tablets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] 1. Sample preparation:

[0084] Select 8 samples of Qinghai Guoluo Cordyceps sinensis, intercept the body parts, dry brush, wash, and dry at 40°C in sequence, and then ultrafinely pulverize to a particle size of D 90 The adult insect body powder / powder sheet prepared from ≤25 μm particles is used as the sample to be predicted in this case.

[0085] 2. Sample hyperspectral data collection:

[0086] The sample is sent to the hyperspectral camera lens, according to the set parameters (spectral collection range is short-wave infrared band (SWIR, 940–2537nm), pixel size is 320 (space) × 256 (spectrum), pixel size is 30 μm × 30 μm, using field of view It is a 10mm lens. The scanning method is high-speed push-broom hyperspectral imaging, the push-broom speed is 3mm / s, and the acquisition speed is 100fps.) to scan and save the hyperspectral image and spectral information of the sample. Image processing is performed by the Evince software of Umbio, Sweden, using the camera's b...

Embodiment 2

[0096] 1. Sample preparation:

[0097] Select commercially available fermented mycelium powder A, fermented mycelium powder B, fermented mycelium powder C, fermented mycelium powder D, hemp back worm body powder / powder sheet, and sub-scented stick worm body similar to cordyceps sinensis powder / powder Six samples including powder / powder flakes were dried at a low temperature of 40°C as samples to be predicted in this example.

[0098] 2. Sample hyperspectral data collection:

[0099] The sample is sent to the lens of the hyperspectral camera, scanned according to the set parameters (same as in Example 1), and the hyperspectral image and spectral information of the sample are saved. Image processing is performed by the Evince software of Umbio, Sweden, using the camera's built-in black and white standard material to automatically correct the image, and then the light intensity value is converted into a spectral absorption curve by A / D.

[0100] 3. Image processing:

[0101] Fir...

Embodiment 3

[0109] In this example, a certain brand of fermented mycelium powder is used as an additive, mixed into pure Cordyceps sinensis powder / powder in a certain proportion, and the prediction example is predicted after mixing evenly;

[0110] 1. Sample preparation:

[0111] Select 4 samples: the first is to add 1% fermented mycelium powder to pure cordyceps sinensis powder / powder; the second is to add 5% fermented bacteria to pure cordyceps sinensis powder / powder Silk powder; the third part is to add 10% fermented mycelium powder to pure cordyceps sinensis powder / powder; the fourth part is to add 15% fermented mycelium powder to pure cordyceps sinensis powder / powder ;

[0112] The above 4 samples were dried at a low temperature of 40°C as samples to be predicted in this example.

[0113] 2. Sample hyperspectral data collection:

[0114] The sample is sent to the lens of the hyperspectral camera, scanned according to the set parameters (same as in Example 1), and the hyperspectral...

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Abstract

The invention belongs to the field of herb identification, discloses a method for nondestructive test authenticity detection of Chinese caterpillar fungus powder / tablets and solves the problems of cumbersome operation, high detection cost and sample consumption of a detection mode adopting the traditional technology. The method comprises the following steps: a, selecting a positive sample and a negative sample; b, acquiring hyperspectral images of the samples; c, processing the hyperspectral images and utilizing the principal component analysis method to extract related features; d, building a PLS-DA prediction model; e, utilizing the PLS-DA prediction model to detect objects to be detected; f, identifying the true objects to be detected from the false objects to be detected according to output of the model. The method is suitable for quickly and accurately identifying caterpillar fungus powder samples.

Description

technical field [0001] The invention belongs to the field of medicinal material identification, and in particular relates to a method for non-destructive detection of the authenticity of cordyceps sinensis powder / powder tablets. Background technique [0002] Cordyceps sinensis (Berkeley) Saccardo is an ascus fungus formed by parasitizing on the larvae of the genus Hepialus of the genus Cordyceps sinensis of the family Ergotaceae. The compound of the larvae corpse of the bat moth of the Lepidoptera Batmothidae insect has a sweet and flat nature, nourishes the lungs and kidneys, stops bleeding and resolves phlegm, and is used for chronic cough and dyspnea, hemoptysis due to fatigue, impotence and spermatorrhea, and sore waist and knees. It is a traditional medicine in my country. precious Chinese herbal medicines. [0003] The growth environment of Cordyceps sinensis is special, and it is mainly distributed in alpine meadows and alpine shrubs at an altitude of 3000-5000 meters ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25
CPCG01N21/25
Inventor 张雪峰谭福元
Owner QINGDAO SPRING MEDICAL RESOURCE TECH UTILIZATION CO LTD
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