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Method for extracting raspberry ketone from raspberry

A technology of raspberry ketone and raspberry, which is applied in the field of extracting raspberry ketone, can solve the problems of post-processing of polluted environment, less reaction steps, equipment corrosion, etc., achieve product quality and safety, reduce material loss, and increase product yield.

Active Publication Date: 2014-02-05
YONGZHOU YIDONG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The synthesis method has few reaction steps and can produce high-purity raspberry ketone, but has the following disadvantages: a large amount of acid and alkali will be used in the synthesis, which will cause problems such as equipment corrosion, environmental pollution and post-processing difficulties; and the toxicity is large, Problems such as low yield
The synthesis process of raspberry ketone is very mature, and the content of raspberry ketone in raspberry is very small, so there is basically no literature on the extraction and purification of natural raspberry ketone

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment 1: the method for extracting raspberry ketone from raspberry

[0056] 1. Take 500g of raspberry raw material (tested content is 0.15%), crush it and move it to the extraction tank, add 3500ml of 85% ethanol (equivalent to 7 times the volume of raspberry weight), reduce pressure (vacuum degree is -0.1 MPa), heated to 70°C, refluxed for 180min, filtered while it was hot, added 2500ml of 85% ethanol (equivalent to 5 times the volume of raspberry) to the dregs for the second extraction, refluxed for 180min under the same conditions, filtered, Combine the two extracts;

[0057] 2. Add 5g of activated carbon to the extract, heat and reflux at 60°C for 60 minutes for decolorization, and filter while it is hot; the filtrate is concentrated under reduced pressure and vacuum to 7 Baume degrees;

[0058] 3. Add the concentrated solution to the pretreated 50g AB-8 resin column (equivalent to 10% of the weight of raspberry), wash with purified water until the effluent is...

Embodiment 2

[0059] Embodiment 2: the method for extracting raspberry ketone from raspberry

[0060] 1. Take 500kg of raspberry raw material (the content is 0.15% after testing), crush it and move it to the extraction tank, add 5000L of 90% ethanol (equivalent to 10 times the volume of raspberry weight), decompress (vacuum degree is -0.08 MPa), heated to 70°C, refluxed for 180min, filtered while hot, added 4000ml of 90% ethanol (equivalent to 8 times the volume of raspberry weight) to the medicinal dregs for the second extraction, refluxed for 180min under the same conditions, filtered, Combine the two extracts;

[0061] 2. Add 5kg of activated carbon to the extract, heat and reflux at 65°C for 45 minutes for decolorization, and filter while it is hot; the filtrate is concentrated under reduced pressure and vacuum to 5 degrees Baume;

[0062] 3. Add the concentrated solution to the pretreated 50kg D101 resin column (equivalent to 10% of the weight of raspberry), the column flow rate is 2B...

Embodiment 3

[0063] Embodiment 3: the method for extracting raspberry ketone from raspberry

[0064] 1. Take 500kg of raspberry raw material (0.15% after testing), crush it and move it to the extraction tank, add 2500L of 95% ethanol (equivalent to 5 times the volume of raspberry), ultrasonic output power 600W, ultrasonic at 50°C Extract for 60 minutes, filter, collect the extract, then add 2000L (equivalent to 4 times the volume of raspberry weight) of 95% ethanol to the dregs for the second extraction, ultrasonicate for 60 minutes under the same conditions, filter and combine twice Extraction solution;

[0065] 2. Add 5Kg (1% of raspberry weight) activated carbon to the extract, heat and reflux at 60°C for 50 minutes, and filter while it is hot; the filtrate is vacuum concentrated to 6 Baume degrees;

[0066] 3. Add the concentrated solution to the pretreated 750kg AB-8 resin column (equivalent to 15% of the weight of raspberry), the flow rate of the upper column is 1.5BV / h, wash with p...

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Abstract

The invention relates to a method for extracting raspberry ketone from raspberry. The method comprises the following steps of raspberry extraction, decoloring, concentration, column chromatography isolation and concentration, so as to obtain the raspberry ketone. The method has the advantages that the natural plant raspberry is wide in source, low in production cost and is beneficial to large-scale production; numerous difficulties are overcome by carrying out a lot of practice and grope according to the production status of extracting the raspberry ketone from the raspberry, so that the product quality is effectively improved; furthermore, the utilized production devices are conventional devices, and according to the method, no novel requirement is required for the devices, and the operation of the factory production and the lowering of the production cost are facilitated.

Description

technical field [0001] The invention relates to a method for extracting raspberry ketone, in particular to a method for extracting raspberry ketone from raspberry. Background technique [0002] Raspberry, a traditional Chinese medicine, is the near-ripe fruit of Rubus idaeus, a plant of the Rosaceae family. Sweet, sour, warm. Return liver, kidney channel. It has the effects of invigorating the liver and kidney, strengthening essence and reducing urination, and improving eyesight. It is mainly used to treat impotence and premature ejaculation, spermatorrhea and spermatorrhea, uterine cold and infertility, leukorrhea, frequent urination and drowning, dim eyes, and early graying of beard and hair; modern pharmacological research shows that raspberry It has various functions such as immune enhancement, anti-aging, and anti-mutagenesis. Raspberry is rich in resources in my country, mainly distributed in Zhejiang, Jiangsu, Anhui, Jiangxi, Fujian, Guangxi and other places, and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C49/245C07C45/78
CPCC07C45/78C07C49/245
Inventor 张宝堂谭家忠李芳
Owner YONGZHOU YIDONG BIOTECH
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