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Method for extracting pterigospermin from moringa root

A technology of moringa and its roots, which is applied in the field of separation and purification of natural products, can solve the problems that do not involve the extraction of moringa bioactive substances, and achieve the effects of lowering temperature, improving utilization rate, and simple structure

Active Publication Date: 2015-06-24
刘福利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it does not involve the extraction of moringa bioactive substances in moringa

Method used

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  • Method for extracting pterigospermin from moringa root
  • Method for extracting pterigospermin from moringa root
  • Method for extracting pterigospermin from moringa root

Examples

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Effect test

Embodiment 1

[0030] Take 150g of Moringa oleifera root powder and place it in an extractor, add 750ml of alcohol to raise the temperature to 50°C and keep it at a constant temperature, and extract with intermittent stirring for 3h. After extraction, filter out the extract, add 750ml of new alcohol to the material, and continue to keep stirring at 50°C for 3 hours. Filter and collect the filtrate. Take again 20g of bamboo-based activated carbon and place it in a beaker, add 100ml of filtrate and stir to make it adsorb, then add 150ml of sherwood oil to elute the activated carbon, obtain 10.95mg of product after methanol recrystallization, and the content is 84.2%.

Embodiment 2

[0032] Get Moringa oleifera root powder 150g, put into filter basket, drop into subcritical extraction kettle, add volume fraction and be 750ml of ethanol of 75%, adjust vacuum degree to be 0.08Mpa, be warming up to 100 ℃, extract twice, each time is 3h, Each time the obtained extract is put into a solvent recovery kettle, and the solvent is recovered under reduced pressure to obtain a black-green leachate. Take again 20g of bamboo-based activated carbon and place it in a beaker, add 100ml of filtrate and stir to make it adsorb, then add 150ml of sherwood oil to elute the activated carbon, obtain product 11.53mg after recrystallization with methanol, and the content is 91.5%.

Embodiment 3

[0034] Get Moringa oleifera root powder 150g, put into filter basket, drop into subcritical extraction kettle, add volume fraction and be 750ml of ethanol of 75%, adjust vacuum degree to be 0.08Mpa, be warming up to 100 ℃, extract twice, each time is 3h, Each time the obtained extract is put into a solvent recovery kettle, and the solvent is recovered under reduced pressure to obtain a black-green leachate. Then take by weighing 20g of bamboo-based activated carbon and place it in a beaker, add 100ml of filtrate and stir to make it adsorb, then add 150ml of sherwood oil to elute the activated carbon to obtain an extract-like substance. Take an appropriate amount of the extract and put it on a silica gel column with a column volume of 1.5L and a diameter-to-height ratio of 1:9, and use dichloromethane-ethanol for gradient elution from small to large polarity, and obtain when the dichloromethane-methanol volume ratio is appropriate. Off-white solid, recrystallized twice with met...

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Abstract

The invention discloses a method for extracting pterigospermin from moringa and belongs to the technical field of natural product extraction. The pterigospermin extraction technology comprises the following steps: step 1, crushing the moringa root; step 2, extracting the moringa root by the subcritical extraction method; step 3, adsorbing the pterigospermin by an adsorbent; step 4, eluting the adsorbent by an elution agent; step 5, removing the elution agent in vacuum; step 6, performing chromatography by a silica-gel column; step 7, eluting by an elution liquid; step 8, re-crystallizing by methanol; and step 9, obtaining the product. The pterigospermin prepared by the invention is high in purity, good in effect, and economical in energy and is applicable to large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of separation and purification of natural products, and in particular relates to a method for extracting moringanin, an active substance in moringa oleifera. Background technique [0002] Moringa (moringa oleifera) is native to India and Africa. It is also known as the drumstick tree. It is a plant of the genus Moringa in the Moringaceae family. The whole plant of Moringa oleifera has different effects. Currently known medical effects include regulating blood pressure, lowering cholesterol, anti-cancer, enhancing immune defense, hypoglycemic effect, regulating thyroid hormone, antioxidant activity, antibacterial effect, contraception and abortion, etc. Wait. In addition, it is rich in protein, vitamins and amino acids, and its nutritional value is equivalent to that of spirulina, which is called "the miniature treasure house of human nutrition" by modern nutritionists. Wood has extremely high economic valu...

Claims

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Application Information

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IPC IPC(8): C07D498/10
Inventor 刘福利
Owner 刘福利
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