Method for extracting and separating curcumin and curcuma oil from carcuma longa

A technology for separating curcumin and turmeric oil, which is applied in the separation/purification of carbonyl compounds, fat oil/fat production, fat oil/fat refining, etc. It can solve the problems of not being suitable for large-scale industrial production, complicated process, and low extraction efficiency

Active Publication Date: 2012-04-11
HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the process of supercritical carbon dioxide extraction method is complicated, the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Turmeric is pulverized into 80 order turmeric powder;

[0038]Get turmeric powder 3000kg, adopt dynamic countercurrent extraction equipment to extract described turmeric powder, the concentration of ethanol aqueous solution is 95% (v / v), feed liquid 1000 liters / hour, turmeric powder feed 200 kilograms / hour, extract The temperature is 30°C, the extract is filtered with a 10-micron ceramic membrane, and the filtrate is concentrated to 1 / 4 of the amount at a vacuum of -0.08Mpa and a temperature of 80°C to obtain a concentrate;

[0039] Add vegetable oil extraction solvent of 2 times the volume of the concentrated solution to the concentrated solution, stir for 30 minutes, let stand for stratification, separate the lower layer liquid and treat it again with the vegetable oil extraction solvent, separate the lower layer liquid and place it for sufficient crystallization, filter , washing, drying to obtain curcumin 35kg, content 94%; filtrate concentration obtains turmeric ol...

Embodiment 2

[0043] Turmeric is pulverized into 80 order turmeric powder;

[0044] Get turmeric powder 3000kg, adopt dynamic countercurrent extraction equipment to extract described turmeric powder, the concentration of ethanol aqueous solution is 93% (v / v), feed liquid 1200 liters / hour, turmeric powder feed 200 kilograms / hour, extract The temperature is 40°C, the extract is filtered with a 10-micron ceramic membrane, and the filtrate is concentrated to 1 / 3 of the amount at a vacuum of -0.08Mpa and a temperature of 80°C to obtain a concentrate;

[0045] Add vegetable oil extraction solvent of 2.5 times the volume of the concentrated solution to the concentrated solution, stir for 30 minutes, let stand for stratification, separate the lower layer liquid and treat it again with the vegetable oil extraction solvent, separate the lower layer liquid and place it for sufficient crystallization, filter , washing, drying to obtain curcumin 35.8kg, content 94.3%; filtrate concentration obtains turm...

Embodiment 3

[0049] Turmeric is pulverized into 80 order turmeric powder;

[0050] Get turmeric powder 3000kg, adopt dynamic countercurrent extraction equipment to extract described turmeric powder, the concentration of ethanol aqueous solution is 90% (v / v), feed liquid 1100 liters / hour, turmeric powder feed 200 kilograms / hour, extract The temperature is 50°C, the extract is filtered with a 10-micron ceramic membrane, and the filtrate is concentrated to 1 / 3 of the amount at a vacuum of -0.08Mpa and a temperature of 80°C to obtain a concentrate;

[0051] Add vegetable oil extraction solvent of 2.5 times the volume of the concentrated solution to the concentrated solution, stir for 30 minutes, let stand for stratification, separate the lower layer liquid and treat it again with the vegetable oil extraction solvent, separate the lower layer liquid and place it for sufficient crystallization, filter , washing, drying to obtain curcumin 37.2kg, content 92.5%; filtrate concentration obtains turm...

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Abstract

The invention discloses a method for extracting and separating curcumin and curcuma oil from carcuma longa, which comprises the following steps of: grinding the carcuma longa into carcuma longa powder with particle size of 80-100 meshes; taking ethanol water solution as extractant for dynamic countercurrent extraction of the carcuma longa powder to obtain extraction solution, and concentrating to obtain concentrated solution; and adding the concentrated solution with plant oil extraction solvent for liquid-liquid extraction to obtain light phase containing curcuma oil and heavy phase containing curcumin. Compared with the prior art, the invention takes the ethanol water solution as the extractant and extracts the curcumin and the curcuma oil from the carcuma longa by employing the dynamic countercurrent extraction method, and the method has the advantages of simple operation, moderate extraction condition, low usage amount of solvent, short extraction time, few impurities in extraction solution and high extraction efficiency.

Description

technical field [0001] The invention relates to the technical field of extraction, in particular to a method for extracting and separating curcumin and turmeric oil from turmeric. Background technique [0002] Turmeric is a perennial herb belonging to the genus Curcuma longa of the Zingiberaceae family. It is produced in Taiwan, Fujian, Guangdong, Guangxi, Yunnan, and Sichuan provinces in my country. It can be traditionally used as medicine, food spices, seasonings, and pigments. The main components of turmeric are curcumin derivatives, turmeric oil and starch, etc., wherein the curcumin derivatives include curcumin, demethoxycurcumin and bisdemethoxycurcumin. [0003] Domestically, curcumin derivatives are mainly extracted from turmeric as food pigments or turmeric oil is extracted from turmeric as natural spices, and the extracted turmeric residue is discarded as waste. Commonly used extraction processes mainly include ethanol reflux extraction, supercritical carbon dioxi...

Claims

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Application Information

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IPC IPC(8): C07C49/255C07C45/78C11B1/10C11B3/00C11B3/12A23L1/221A23L27/10
Inventor 潘天义文雁君李林正章文晋李宏龙
Owner HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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