A kind of method extracting elemin from pepper

A technology of elemin and pepper, which is applied in the field of plant natural product preparation, achieves the effect of high extraction rate

Active Publication Date: 2019-01-08
SHENZHEN XIANKANGDA BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no such method in the art

Method used

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  • A kind of method extracting elemin from pepper
  • A kind of method extracting elemin from pepper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A method for extracting elemin from pepper, the steps are as follows:

[0045] Processing steps: select 3 kg of aged pepper leaves in autumn, crush the pepper leaves, and then freeze at 2°C for 2 hours; take out the crushed pepper leaves after freezing, and put them into a hot water container at 90°C;

[0046] Extraction steps: Put the same 3 parts of pepper leaf powder that have been weighed into the first, second, and third extraction tanks respectively, add ethanol 3 times the solid weight to the first tank, and ultrasonically extract and soak for 30 minutes. Then put the extract A1 in the second tank for the first extraction, and continue to use 2 times the volume of ethanol for ultrasonic extraction of the solid residue for 1 hour, and place the extract A2 in the second tank for the second extraction, and continue to add 2 Doubling the volume of ethanol for ultrasonic extraction for 1 hour, the extract A3 was placed in the second tank for the third extraction, and ...

Embodiment 2

[0049] A method for extracting elemin from pepper, the steps are as follows:

[0050] Processing steps: choose 3 kg of aged pepper leaves in autumn, crush the pepper leaves, and then freeze them at -5°C for 1-2 hours; take out the crushed pepper leaves after freezing, and put them into a hot water container with a temperature of 70-90°C;

[0051]Extraction steps: Put the same 3 parts of pepper leaf powder that have been weighed into the first, second, and third extraction tanks respectively, add ethanol 3 times the solid weight to the first tank, and ultrasonically extract and soak for 30 minutes. Then put the extract A1 in the second tank for the first extraction, continue to extract the solid slag with 2 times the volume of ethanol ultrasonically for 1.5h, put the extract A2 in the second tank for the second extraction, and continue to add the solid slag to Ultrasonic extraction with 2 times the volume of ethanol for 1.5 hours, the extract A3 was placed in the second tank fo...

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Abstract

The invention is suitable for the technical field of plant natural product preparation and provides a method of extracting elemicin from pepper. The method includes: using pepper leaves as a raw material; treating: smashing the pepper leaves, freezing, and soaking in hot water; extracting: filtering, and taking filtered pepper leaves for alcohol ultrasonic extraction to obtain extract; obtaining elemicin: filtering the extract, and taking filtrate for distilling at temperature of 95-105 DEG C for 1-2h. According to the method, a mode of freezing before soaking in the hot water is adopted for the pepper leaves, so that cell walls and cell membranes of the leaves are effectively damaged, and extraction of elemicin in the subsequent extraction step is facilitated. After the pepper leaves are treated, alcohol ultrasonic extraction and distillation are adopted, so that elemicin in the pepper leaves is extracted effectively, and extraction rate is high.

Description

technical field [0001] The invention belongs to the technical field of plant natural product preparation, in particular to a method for extracting elemin from pepper. Background technique [0002] Elemin, whose chemical formula is 5-allyl-1,2,3-trimethoxybenzene, is a new type of anesthetic, and its structural formula is as follows: [0003] [0004] Although this ingredient is contained in many plants, it is difficult to extract because of its small content and many impurities. For this reason, some scientific research workers try to use the method of chemical synthesis to carry out synthetic experiments on elemin, but the method of chemical synthesis will inevitably contain other impurities such as benzene, which are relatively dangerous to the human body. [0005] Pepper is a plant widely grown in southern my country. At present, people use more pepper fruits, and the stems and leaves are basically not further processed. Relevant studies have shown that pepper contai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C41/34C07C41/38C07C41/42C07C43/215
CPCC07C41/34C07C41/38C07C41/42C07C43/215
Inventor 董景峰谢海涛谢来宾陈佩
Owner SHENZHEN XIANKANGDA BIOTECH CO LTD
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