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Extraction method of crocus sativus medicinal material DNA

An extraction method and technology of saffron, which are applied in the field of DNA extraction of saffron medicinal materials, can solve the problems of high cost, high cost, and difficulty in extracting high-purity DNA, so as to save process and operation time, and improve experimentation. The effect of efficiency

Inactive Publication Date: 2016-04-06
MINZU UNIVERSITY OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In addition, as a food dye, saffron stigma is rich in polysaccharides, pigments, volatile oils and proteins, and its high-purity DNA is difficult to extract
If the general method is used to extract DNA, once it fails, it is necessary to re-purchase the saffron medicinal material, which is too expensive and expensive

Method used

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  • Extraction method of crocus sativus medicinal material DNA
  • Extraction method of crocus sativus medicinal material DNA

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Embodiment

[0026] The examples are exemplary only and do not limit the scope of the present invention in any way. Those skilled in the art should understand that the details and forms of the technical solutions of the present invention can be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the protection scope of the present invention. The various materials, reagents or utensils used in the present invention can be obtained from the market unless otherwise specified. An example of the present invention is as follows:

[0027] 1. Experimental equipment

[0028] Electronic analytical balance, vortex oscillator, high-speed centrifuge, ultrapure water system, refrigerator, autoclave, ultra-clean workbench, pipette gun, microwave oven, ice maker, PCR instrument, electrophoresis apparatus, gel imaging system, etc. .

[0029] 2. Experimental Drugs

[0030] Buffers and reagents used: 4% cetylt...

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Abstract

The invention discloses an extraction method of crocus sativus medicinal material DNA. The method includes the steps of sufficiently grinding dried stigmas of crocus sativus through liquid nitrogen, adding 4*CTAB and phenol-chloroform of the same volume, conducting concentration, adding pre-cooling anhydrous ethanol and NaAc for sedimentation, conducting washing absolute ethyl alcohol, and storing the samples in a refrigerator with the temperature of -20 DEG C for standby application, wherein the volume of the pre-cooling anhydrous ethanol is two times of the volume of phenol-chloroform, the volume of NaAc is 20% of the volume of phenol-chloroform, and the volume of absolute ethyl alcohol is 2.5 times of the volume of phenol-chloroform. A traditional CTAB method is further improved and optimized, and the experiment efficiency is greatly improved. DNA obtained from crocus sativus medicinal materials through the method is high in quality, and the DNA purity meets the requirement for downstream application. The method has the advantages of being efficient, economical, safe and easy and convenient to use for medicinal material drying.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a method for extracting the DNA of saffron medicinal material. Background technique [0002] Saffron, or saffron, saffron, is a perennial flower of the family Iridaceae, and is a precious Chinese medicinal material. Measured by weight, saffron is the most expensive spice in the world. Crocus is a native species in Southwest Asia, but it was first cultivated by the Greeks. It is mainly distributed in Europe, the Mediterranean, and Central Asia. In the Ming Dynasty, saffron was introduced into China. The "Compendium of Materia Medica" listed it as a medicine, and it was cultivated in Zhejiang and other places in China. The medicinal part of saffron is the dry stigma, which is dark red and silky. It has the functions of promoting blood circulation and removing blood stasis, cooling blood and detoxifying, dispelling stagnation and knotting, and beautifying the skin. It is a...

Claims

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Application Information

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IPC IPC(8): C12N15/10
CPCC12N15/1003
Inventor 龙春林黄卫娟
Owner MINZU UNIVERSITY OF CHINA
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