Method for establishing fingerprints of related characteristics of chemical small molecule components of noble dendrobium

A technology of fingerprints and Dendrobium nobile, which is applied in the field of analysis and modeling of fingerprints, can solve problems such as high requirements for instruments, inability to accurately detect macromolecular components, and inability to accurately evaluate the quality of Dendrobium, achieving pertinence and applicability, Realize the effect of correlation analysis

Active Publication Date: 2018-06-26
北京蓝标一成科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In addition, in the existing Dendrobium detection standards, the polysaccharides and other macromolecular medicinal components are detected. However, the detection of polysaccharides and other macromolecular components requires high technology and equipment requirements, and the existing domestic instruments and equipment are usually unable to accurately detect macromolecules. Molecular composition, unable to accurately evaluate the quality of Dendrobium

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  • Method for establishing fingerprints of related characteristics of chemical small molecule components of noble dendrobium
  • Method for establishing fingerprints of related characteristics of chemical small molecule components of noble dendrobium
  • Method for establishing fingerprints of related characteristics of chemical small molecule components of noble dendrobium

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The extraction method of embodiment 1 Dendrobium nobile

[0054] Take the dried sample of Dendrobium nobile, pulverize it with a pulverizer, pass through a pharmacopoeia sieve (aperture 0.335mm), accurately weigh 1.000g of Dendrobium powder (the weighing error cannot exceed 0.2%), place it in a 100ml conical flask, add 50mL 75 % Methanol (V 水 :V 甲醇 =25:75), took out after ultrasonic 30min at room temperature, filtered, and the filtrate was concentrated to dryness with 75% methanol solvent (V 水 :V 甲醇 =25:75) was dissolved, and finally transferred to a 10ml volumetric flask to constant volume, shaken up, and filtered with a 0.45 μm microporous membrane to obtain a sample solution of Dendrobium nobile.

Embodiment 2

[0055] The chromatographic detection method of the Dendrobium nobile extract of embodiment 2

[0056] 1. Sample extraction and processing method for the determination of small molecule components of Dendrobium nobile:

[0057] Take 1.00g of the powder of this product (passed through a No. 3 sieve), accurately weigh it, put it in a 100ml volumetric flask, add 50ml of methanol-water (75:25) accurately, ultrasonicate (power 250W, frequency 40kHz) for 30 minutes, let cool, After filtration, the filtrate was concentrated to dryness by rotary evaporation, dissolved in 5 ml of methanol-water (75:25), the supernatant was passed through a 0.45 μm microporous membrane, and the subsequent filtrate was obtained.

[0058] 2. Preparation of reference solution

[0059] Accurately weigh 4.10 mg of saffrontoside and 4.08 mg of naringenin respectively, place them in 10 ml volumetric flasks, add 75% methanol to dissolve and dilute, shake well, and use them as stock solutions. Refrigerate at 4°...

Embodiment 3

[0070] Example 3 Establishment of characteristic fingerprints related to Schaftoside in Dendrobium nobile.

[0071] 1. Dendrobium sample solution preparation

[0072] Take the dry sample of Dendrobium, pulverize it with a pulverizer, pass through a pharmacopoeia sieve (aperture 0.335mm), accurately weigh 1.000g of Dendrobium powder (the weighing error cannot exceed 0.2%), place it in a 100ml Erlenmeyer flask, add 50mL of 75% methanol ( V 水 :V 甲醇 =25:75), took out after ultrasonic 30min at room temperature, filtered, and the filtrate was concentrated to dryness with 75% methanol solvent (V 水 :V 甲醇 =25:75), and finally transferred to a 10ml volumetric flask to constant volume, shaken up, and filtered through a 0.45μm microporous membrane to obtain the product. Table 2 is the linear relationship obtained for the reference substance.

[0073] Table 2 The linear relationship table of the reference substance Schaftoside

[0074]

[0075] 2. Method for establishing the relev...

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Abstract

The invention discloses a method for establishing fingerprints of related characteristics of chemical small molecule components of noble dendrobium. The method comprises: 1) respectively performing chromatographic detection on samples having a sample size of n, and obtaining test data with chemical small molecule components schaftoside and/or naringenin as reference components; 2) respectively performing fingerprint analysis on the samples to obtain a peak area value of the fingerprints of all chemical components of noble dendrobium; 3) taking the component content value of schaftoside and/ornaringenin in chromatographic data as a response variable, taking a peak area value of other components in the fingerprint as an independent variable to establish an analytical model, and establishinga linear regression model of the small molecular components and the fingerprints; 4) characterizing the contribution degree of the independent variable to regression modeling through a variable correlation coefficient index, and establishing the fingerprints of the related characteristics of the chemical small molecule components. According to the method, correlation analysis of the chemical small molecule component content is achieved, and the quality of the noble dendrobium medicinal material can be effectively identified, controlled and evaluated.

Description

technical field [0001] The invention belongs to the field of detection and analysis of traditional Chinese medicine components, and in particular relates to a method for analyzing and modeling the fingerprint of Dendrobium nobile. Background technique [0002] Dendrobium is a commonly used tonic Chinese medicine, mainly for the Dendrobium genus. Dendrobium is the largest genus of Orchidaceae, including Dendrobium candidum, Dendrobium nobile, Dendrobium dendrobii, Dendrobium drumstick and other varieties. There are more than 1,100 species of Dendrobium in the world, of which 76 are found in my country. Dendrobium has a long history of medicinal use. As early as in ancient times, Dendrobium was listed as a nourishing top grade in "Shen Nong's Materia Medica". For a long time, with the development of the times, Dendrobium has been regarded as a precious Chinese herbal medicine with very important nourishing effects. Dendrobium is clinically used to treat a variety of disease...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/027
Inventor 邵自星赵田
Owner 北京蓝标一成科技有限公司
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