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Method for preparing lysionotin from lysionotus pauciflorus medicinal material

A technology of lycophyllin and lycochophyton, applied in the field of preparation of lycophyllin, to achieve the effect of shortening the extraction time, short cycle and high extraction efficiency

Inactive Publication Date: 2012-05-30
苏州宝泽堂医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Our country is rich in resources and sources of Chlorophytum, but there are few studies on its extraction and separation. Therefore, providing a new method for the industrial preparation of Chlorophytum has high theoretical and practical value.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Get the 2Kg of the leaves of the Chinese lettuce moss, pulverize and cross 80 mesh sieves, get 400g respectively and place them in 5 extraction tanks for extraction, inject 0.8L solvent (5%Na 2 CO 3 dilute alcohol solution), turn on the ultrasonic device, set the power to 600W, and extract for 40 minutes at an extraction temperature of 50°C. Simultaneous extraction, the solvent is transferred backwards in turn, the extraction conditions of each tank are the same as that of tank 1, until the extraction of extraction tank 4 is completed, the 5-stage ultrasonic enhanced continuous countercurrent extraction is started, and the extraction solution of tank 5 is collected. The direction in which the content of active ingredients in the extract is increasing is transferred every other tank until the end of the first-stage extraction, that is, the high-concentration extracts in tanks 1, 2, 3, and 4 are collected in stages 2 to 5, and the extracts are combined and extracted with ...

Embodiment 2

[0025] Get 2Kg of the leaves of Lemongrass lettuce, pulverize through a 100-mesh sieve, get 500g respectively and place them in 4 extraction tanks for extraction, inject 1L solvent (3% NaOH dilute alcohol solution) from the bottom of the extraction tank 1 with a pump, turn on the ultrasonic device, set The fixed power is 700W, and the extraction temperature is 40°C for 30 minutes. After the extraction, the solvent is pumped into the extraction tank 2, and the same amount of fresh solvent is injected into the extraction tank 1 at the same time, and the two tanks are extracted at the same time. The extraction conditions of the tank are the same as that of the tank 1, until the extraction of the extraction tank 3 is completed, the 4-stage ultrasonic enhanced continuous countercurrent extraction is started, the extraction liquid of the tank 4 is collected, and the extract liquid with a lower active ingredient content is separated by one in the direction of increasing active ingredie...

Embodiment 3

[0027] Get 5Kg of the leaves of Lemongrass lettuce, pulverize through a 60-mesh sieve, get 1Kg respectively and place them in 5 extraction tanks for extraction, inject 1.2L solvent (3% KOH dilute alcohol solution) from the bottom of the extraction tank 1 with a pump, turn on the ultrasonic device, Set the power to 1000W, and extract for 50 minutes at the extraction temperature of 60°C. After the extraction is completed, the solvent is pumped into the extraction tank 2, and the same amount of fresh solvent is injected into the extraction tank 1 at the same time. The extraction conditions of each tank are the same as that of tank 1. Until the extraction of extraction tank 4 is completed, 5 stages of ultrasonic enhanced continuous countercurrent extraction are started, and the extraction liquid of tank 5 is collected. The tanks are transferred until the end of the first-stage extraction, that is, the high-concentration extracts from tanks 1, 2, 3, and 4 are collected in stages 2 t...

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Abstract

The invention provides a method for preparing lysionotin from lysionotus pauciflorus medicinal material. The method is characterized in that dry leaves of lysionotus pauciflorus are taken, crushed and placed in continuous reflux ultrasonic extraction equipment to be subjected to ultrasonic extraction, extract is extracted once to twice by the aid of ethyl ether, a water layer is taken to be acidified, filtered sediment is sequentially washed for twice to three times by the aid of water and diluted alcohol, then is dissolved by the aid of acetone and is crystallized for twice to three times, and crystal products are obtained. The method is simple in operation and low in energy consumption, production cost is lowered, environmental pollution is reduced, and accordingly the method has an industrial significance.

Description

Technical field: [0001] The invention belongs to the field of separation of natural products, and in particular relates to a method for preparing lycophyllin from the medicinal material of lycosides. Background technique: [0002] Chlorophyll, also known as wadolin, Neihua Evalchrin. Yellow needle crystal (acetone), melting point 195~196℃. Soluble in 5% sodium carbonate, potassium hydroxide or sodium hydroxide solution, also soluble in acetone, chloroform, slightly soluble in methanol, ethanol and ethyl acetate, very slightly soluble in ether, insoluble in water. [0003] At present, lysionotus pauciflorus Maxim, a plant of the Gesneriaceae genus Lysionotus pauciflorus Maxim, is mainly used as the raw material for lysionotus extraction of lysionotus in the market. , Guizhou Province is the main producing area, and it is distributed throughout the province and is rich in content. The plants of this family are mostly used for medicinal purposes. They have the functions of c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/30C07D311/40
Inventor 李法庆刘东锋
Owner 苏州宝泽堂医药科技有限公司
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