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Method for extracting curcumin from fresh ginger

A kind of technology of curcumin and ginger

Inactive Publication Date: 2018-06-12
温州瑞思生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention adopts supercritical extraction, which requires high equipment and high cost, and is not suitable for industrial production
Such as the disclosed organic solvent extraction method of CN102603505, the disclosed supercritical CO2 extraction method of CN103254050, the disclosed enzymatic pretreatment of CN105061168 to assist the process of extracting curcumin; the disclosed alkaline water extraction method of CN103570517, etc.; the ubiquitous problems in the above preparation methods are The content of impurities in the components extracted by the organic solvent extraction method is relatively high; the enzymatic method has high requirements on the environment and pH value and cannot be applied on a large scale; the alkaline water extraction reaction is severe and will destroy curcumin; Difficult to purify and other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Take 1 kg of ginger and cut into shreds, add 15 times the amount of NaOH solution for pre-treatment; use a flash extractor to perform wall-breaking treatment at a voltage of 220V for 3 minutes to obtain a wall-breaking slurry.

[0030] 2) Add a compound enzyme composed of 0.3% cellulase, 0.1% turmeric amylase and 1.0% turmeric papain by weight of the broken wall liquid to the broken wall slurry and adjust the pH to 3. After 3 hours of enzymolysis , high temperature inactivation treatment to obtain enzymatic hydrolysis solution.

[0031] 3) Add the enzymatic hydrolysis solution to sodium salicylate alcohol solution, homogenize at 6000r / min for 6min, and then extract twice by ultrasonic to obtain curcumin extract.

[0032] 4) Concentrate the extract to a paste, apply Diaion HP-10 macroporous resin, elute with 30% volume percent acetone-glacial acetic acid, collect the eluate and remove the solvent to obtain crude curcumin;

[0033] 5) Use the mixed solvent ethanol and...

Embodiment 2

[0036] 1) Take 1 kg of ginger and cut into shreds, add 10 times the amount of NaOH solution for pretreatment; use a flash extractor to perform wall breaking treatment at a voltage of 220V for 3 minutes to obtain a broken wall slurry.

[0037] 2) Add a compound enzyme composed of 0.3% cellulase, 0.1% turmeric amylase and 1.0% turmeric papain by weight of the broken wall liquid to the broken wall slurry and adjust the pH to 3. After 3 hours of enzymolysis , high temperature inactivation treatment to obtain enzymatic hydrolysis solution.

[0038] 3) Add the enzymatic hydrolysis solution to sodium salicylate alcohol solution, homogenize at 3000r / min for 6 minutes, and then extract twice by ultrasonic to obtain curcumin extract.

[0039] 4) Concentrate the extract to a paste, apply Diaion HP-10 macroporous resin, elute with 30% volume percent acetone-glacial acetic acid, collect the eluate and remove the solvent to obtain crude curcumin;

[0040] 5) Use the mixed solvent ethanol a...

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PUM

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Abstract

The invention relates to a method for extracting curcumin from fresh ginger. According to the method, fresh ginger raw materials are directly used without drying, an extraction process adopts wall breaking of a flash extraction device, compound enzyme enzymolysis and an ultrasonic-assisted sodium salicylate ethanol solution extraction method, a technique combined wall breaking of a flash extraction device with compound enzyme enzymolysis greatly improves extraction efficiency, most of impurities in solution can be remained in mother solution through crystallization, high-purity crystals can beacquired through filtering and washing, a HPLC (high performance liquid chromatography) detects that purity can reach 90% or more after crystallization, and the HPLC detects that the purity can reach97% or more after recrystallization.

Description

technical field [0001] The invention relates to an extraction process, in particular to a method for extracting curcumin from ginger. Background technique [0002] Turmeric is the dry rhizome of Curcumalonga L., a plant in the ginger family, which has the functions of promoting qi and relieving pain, promoting menstrual flow and breaking blood, dispelling wind and treating numbness. In recent years, pharmacological studies at home and abroad have found that turmeric plants have various functions such as preventing and treating cancer and protecting brain nerves, so they have attracted much attention. [0003] Curcumin, commonly known as curcumin, is mainly derived from the rhizome of turmeric, a plant of the genus Curcuma longa in the ginger family. A large number of studies have proved that curcumin has various pharmacological effects such as anti-oxidation, anti-inflammation, anti-cancer, scavenging free radicals, anti-microbial, protecting cardiovascular and cerebrovascu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C45/78C07C45/80C07C45/81C07C49/255
CPCC07C45/78C07C45/80C07C45/81C07C49/255
Inventor 肖秀丽
Owner 温州瑞思生物科技有限公司
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