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Method for extracting kawain from piper methysticum

A technology of kava pepper and capsaicin, which is applied in the field of extracting capsaicin, can solve the problems of low utilization rate of process raw materials and low product purity, and achieve the effect of improving raw material utilization rate, improving product purity, and less pollution

Inactive Publication Date: 2014-12-24
NANJING BIAOKE BIO TECH
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  • Summary
  • Abstract
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Problems solved by technology

The process raw material utilization rate described in this method is low, and product purity is low, is not suitable for being used as medicine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 1 kg of dried kava pepper, crush it, pass through a 40-mesh sieve, add 10 times the amount of 30% ethanol solution for reflux extraction, extract twice, filter the extract, concentrate the filtrate under reduced pressure, put the concentrate on a macroporous resin column, and use 3BV was washed with water to remove impurities, and then 5BV was eluted with 60% ethanol, and the ethanol eluate was collected. Concentrate the eluent to 1 / 7 of the original volume, place it to crystallize, recrystallize twice with ethanol, and dry to obtain 18.6 g of capsaicin with a content of 91.3%.

Embodiment 2

[0019] Take 10 kg of dried kava pepper, crush it, pass through a 40-mesh sieve, add 10 times the amount of 50% ethanol solution for reflux extraction, extract twice, filter the extract, concentrate the filtrate under reduced pressure, and put the concentrate on a macroporous resin column. 4BV was washed with water to remove impurities, then eluted with 6BV60% ethanol, and the ethanol eluate was collected. Concentrate the eluent to 1 / 5 of the original volume, place it to crystallize, recrystallize with ethanol three times, and dry to obtain 196.2 g of capsaicin with a content of 88.4%.

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Abstract

The invention relates to a method for extracting kawain from piper methysticum. The method comprises the following process steps: (1) crushing dried piper methysticum, and performing reflux extraction with ethanol; (2) filtering and concentrating the filtrate, feeding into a macroporous resin column, eluting the resin column with water and ethanol in sequence, and collecting the alcohol eluate; (3) concentrating the eluate, and standing to crystallize; and (4) recrystallizing. The method has the advantages of simple process, small pollution, good quality and the like, and is an environment-friendly extraction method.

Description

technical field [0001] The invention belongs to the field of natural product extraction, and relates to a method for extracting capsaicin from kava pepper. Background technique [0002] Kava Kava (Piper methysticum Forst) is a perennial erect shrub medicinal plant of the family Piperaceae. It is produced in the South Pacific Islands. The roots and rhizomes are used as medicine, and the effective part is the fat-soluble resin part. In recent years, Kava pepper has been used as a food supplement by people in many countries in the world. It is used to regulate stress and relieve anxiety. It has a good effect on relieving depression, insomnia and other problems. [0003] Capsaicin is one of the main medicinal components of kava, which can regulate neurotransmitters in both directions, and has various effects such as relieving anxiety and depression, sedative hypnosis, local anesthesia, and anticonvulsant, and no drug dependence has been observed. As early as 1990, the German Fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D309/32
CPCC07D309/32
Inventor 张金芳杨存
Owner NANJING BIAOKE BIO TECH
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