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High-efficiency condensation extraction method of purple corn pigment

An extraction method and technology of purple corn, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of large operation space and floor space, long production process time, large power consumption, etc., and achieve power consumption. The effect of less, shorter extraction time, energy saving and environmental protection in the production method

Inactive Publication Date: 2012-08-08
HUAIBEI PUHAO BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since there is no national standard for related products and technical reports for mass production, the application number: 201110109086.8 proposes a method for extracting purple corn pigment that can not only meet the relevant product standards of Japan and the European Union in market demand countries, but also meet industrial production. extraction method, but there are disadvantages such as long production process time, large power consumption, large operating space and large floor area. At the same time, because natural pigments such as purple corn pigment are heat-sensitive substances, excessive heating time during the concentration process will lead to flowering. The denaturation of penicillin affects its unique physiological functions such as anti-oxidation, softening blood vessels and preventing and killing colon cancer cells

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A high-efficiency concentration and extraction method of purple corn pigment, the steps are as follows: 1. Sorting and crushing: remove the moldy and insect-eaten parts of the raw purple corn cobs, wash and dry them, and the moisture content is required to be less than 14%. The raw material is crushed to about 5mm particles; 2. Soaking in acidic ethanol: Take 1Kg of the above-mentioned screened and crushed raw material, soak the crushed raw material in acidic ethanol with pH=4.0, the solid-liquid ratio of raw material and acidic ethanol is 1:8 (g / ml), soaking temperature 40°C, soaking time 0.5h; 3. Ultrasonic extraction: ultrasonic working frequency 80kHz, extraction time 0.5h; 4. Centrifugal filtration: use a disc centrifuge to remove large particles of impurities; 5. Composite Membrane filtration: use 80-mesh composite membrane to filter, remove particles and tiny impurities, and keep the filtrate at a constant temperature; 6. Ethanol removal: evaporate and concentrat...

Embodiment 2

[0014] A high-efficiency concentration and extraction method of purple corn pigment, the steps are as follows: 1. Sorting and crushing: remove the moldy and insect-eaten parts of the raw purple corn cobs, wash and dry them, and the moisture content is required to be less than 14%. The raw material is crushed to about 5mm particles; 2. Soaking in acidic ethanol: take 1Kg of the above-mentioned screened and crushed raw material, soak the crushed raw material in acidic ethanol with pH=4.3, and the solid-liquid ratio of raw material to acidic ethanol is 1:8 (g / ml), soaking temperature 40°C, soaking time 0.5h; 3. Ultrasonic extraction: ultrasonic working frequency 90kHz, extraction time 0.5h; 4. Centrifugal filtration: use a disc centrifuge to remove large particles of impurities; 5. Composite Membrane filtration: Use 100-mesh composite membrane to filter, remove particles and tiny impurities, and keep the filtrate at a constant temperature; 6. Remove ethanol: evaporate and concent...

Embodiment 3

[0018] A high-efficiency concentration and extraction method of purple corn pigment, the steps are as follows: 1. Sorting and crushing: remove the moldy and insect-eaten parts of the raw purple corn cobs, wash and dry them, and the moisture content is required to be less than 14%. The raw material is crushed to about 5mm particles; 2. Soaking in acidic ethanol: take 1Kg of the above-mentioned screened and crushed raw material, soak the crushed raw material in acidic ethanol with pH=4.5, and the solid-to-liquid ratio of raw material to acidic ethanol is 1:8 (g / ml), soaking temperature 40°C, soaking time 0.5h; 3. Ultrasonic extraction: ultrasonic working frequency 100kHz, extraction time 0.5h; 4. Centrifugal filtration: use a disc centrifuge to remove large particles of impurities; 5. Composite Membrane filtration: use 120-mesh composite membrane to filter, remove particles and tiny impurities, and keep the filtrate at a constant temperature; 6. Ethanol removal: evaporate and co...

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Abstract

The invention relates to a high-efficiency condensation extraction method of a purple corn pigment. The high-efficiency condensation extraction method comprises the following steps of sorting fragmentation, acidic ethanol immersion, ultrasonic extraction, centrifugation filtration, composite membrane filtration, ethanol removal, resin adsorption and desorption, sodium filter membrane concentration, evaporative concentration, and spray drying. The purple corn pigment extracted by the 11 steps satisfies the existing international standards of purple corn pigments. The high-efficiency condensation extraction method allows short extraction time, has low power consumption and a small covering area, prevents anthocyanin denaturation, and is suitable for mass production. The purple corn pigment can be used in fields of foods, health products and medicines. The high-efficiency condensation extraction method saves energy and is environmentally friendly.

Description

technical field [0001] The invention relates to a method for extracting purple corn pigment, in particular to a method for efficiently concentrating and extracting purple corn pigment. Background technique [0002] Purple corn pigment is a natural pigment obtained by separation and extraction from black waxy corn or purple corn cobs, seed coats, plants, bracts, etc. In addition to the physiological functions of purple corn pigment, it also has unique physiological functions such as anti-oxidation, softening blood vessels, preventing and killing colon cancer cells; purple corn pigment is mainly used in the fields of food, health products and medicine; especially in Japan and South Korea at super high prices The acquisition of purple corn pigment is used in the field of medicine, and the demand is huge. [0003] Since there is no national standard for related products and technical reports for mass production, the application number: 201110109086.8 proposes a method for extra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00
CPCC09B61/00A23L1/2751A23L5/43
Inventor 宫坤
Owner HUAIBEI PUHAO BIOLOGICAL TECH
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