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Extracting method for curcumin

An extraction method and technology of curcumin, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of low production efficiency of curcumin

Active Publication Date: 2012-05-02
HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the production efficiency of the curcumin of the prior art is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Get 2000 kilograms of fresh turmeric roots, wash with water, pack into a hot air circulation dryer, dry for 24 hours, and the humidity is 12wt%, to obtain 800 kilograms of turmeric, pulverize with a pulverizer, and the granularity of turmeric powder obtained is 60 orders, and 790 kilograms of turmeric powder are altogether 800 kilograms of turmeric granules are obtained after granulation, the diameter of turmeric granules is 5 mm, and the length is about 10 mm;

[0033] 800 kilograms of above-mentioned turmeric granules (unit color value 40) are added into the flat-rotating extractor for extraction, sprayed with 92vol% ethanol, and 152 kilograms of turmeric concentrated solution is obtained after recovering the solvent, the unit color value is 206, and the pigment yield is 97.85%. The whole process takes 1.5 hours.

Embodiment 2

[0035] Get 2000 kilograms of fresh turmeric roots, wash with water, pack into a hot air circulation drier, dry for 22 hours, and the humidity is 13wt%, to obtain 850 kilograms of ginger roots. Pulverize with pulverizer, the particle size that obtains turmeric powder is 65 orders, obtains 836 kilograms of turmeric powders, obtains 848 kilograms of turmeric granules after granulation, diameter 5mm, about length 10mm;

[0036] Add 848 kilograms of above-mentioned turmeric granules (unit color value 50) into a horizontal extractor for extraction, spray with 95vol% ethanol, and recover 166 kilograms of turmeric concentrate after solvent recovery, color value 251, and pigment yield 98.3%. The extraction process took 1.5 hours.

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PUM

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Abstract

The invention discloses an extracting method for curcumin, comprising the following steps: pulverizing curcuma; pelleting the pulverized curcuma under the condition of introducing steam; and extracting particles obtained by pelleting with leach liquor. Since turmeric roots contain a large amount of starch which can be gelatinized in a manner of introducing steam for heating and has stickiness, thus the turmeric powder can be more compactly combined, has large rigidity, and is not easy to break; the prepared particles are provided with many micropores, and the solvent is easy to permeate, thusthe extraction rate is high; and in addition, the gaps among the particles are larger than the gaps among the powdery materials, thus the solvent is more easy to permeate and the rate of filtration is high, thereby improving the extraction rate, the rate of filtration and the production efficiency.

Description

technical field [0001] The present invention relates to the extraction method of pigment, more specifically, relate to a kind of extraction method of curcumin. Background technique [0002] Curcumin is a natural yellow pigment extracted from Curcuma longa, Curcuma longa, and Curcuma turmeric. It is a diketone, mainly including curcumin, demethoxycurcumin and dideoxycurcumin. Curcumin has good coloring and dispersibility, and has a special aroma, insoluble in cold water, acid-resistant, immediately turns red when it encounters alkali, has good stability to light and heat, non-toxic and side effects, and is currently widely used in food additives and dyes. In addition, in addition to being used for coloring, curcumin also has health care functions, such as anti-inflammatory, hypolipidemic, antibacterial, and anticancer effects. [0003] At present, the production of curcumin is all based on turmeric powder, which is extracted by percolation method, extraction tank static ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00
Inventor 文雁君
Owner HENAN ZHONGDA HENGYUAN BIOTECH CO LTD
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