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Industrial gardenia yellow pigment purification device and method for extracting gardenia yellow pigment

A gardenia yellow pigment and extraction liquid technology, which is applied to chemical instruments and methods, separation methods, evaporator accessories and other directions, can solve the problems of large loss of target products, backward purification technology, prolonged elution cycle, etc., and achieves low cost, The effect of high color price and improved purification efficiency

Inactive Publication Date: 2015-06-03
HUBEI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the extraction and purification industry of gardenia yellow pigment, the purification technology has been relatively backward
At present, the technology used to purify gardenia yellow pigment in production is column chromatography, which has the disadvantages of low efficiency, large loss of target product, large amount of solvent, and high cost.
Especially after the macroporous resin adsorbs gardenia yellow pigment, the yield is reduced, the elution cycle is prolonged, labor and time-consuming, and secondary evaporation recovery is required, which leads to the oxidation of gardenia yellow pigment and reduces the color value

Method used

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  • Industrial gardenia yellow pigment purification device and method for extracting gardenia yellow pigment
  • Industrial gardenia yellow pigment purification device and method for extracting gardenia yellow pigment

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A method for purifying gardenia yellow pigment by using the above-mentioned gardenia yellow pigment industrial purification device, comprising the steps of:

[0030] 1) Dry the remaining residue after extracting gardenia oil from gardenia fruits, and then extract it with a food-grade ethanol solution with a concentration of 90%. The extract is concentrated in vacuum at 50°C, dried, and pulverized through a 60-mesh sieve to obtain fine powder.

[0031] 2) Adjust the water temperature of the water bath heater to be 95°C, the condensation temperature of the condenser 7 to be 5°C and the heating temperature of the solvent heater to be 80°C, then close the sampling valve, the collection valve and the inlet valve, and then the obtained in step 1) The fine powder is loaded into the elution column, and the height of the loading is two-thirds of the height of the elution column, and then the elution column is filled with food-grade anhydrous ethyl acetate.

[0032]3) Turn on th...

Embodiment 2

[0037] A method for purifying gardenia yellow pigment by using the above-mentioned gardenia yellow pigment industrial purification device, comprising the steps of:

[0038] 1) Dry the remaining residue after extracting gardenia oil from gardenia fruit, and then extract it with 70% food-grade ethanol. The extract is concentrated in vacuum at 60°C, dried, and crushed through a 100-mesh sieve to obtain a fine powder. powder.

[0039] 2) adjust the water temperature of the water bath heater to be 90°C, the condensation temperature of the condenser 7 to be 15°C and the heating temperature of the solvent heater to be 60°C, then close the sampling valve, the collection valve and the inlet valve, and then the obtained in step 1) Load the fine powder into the elution column, the height of which is half of the height of the elution column, close the valve at the bottom of the elution column, and then fill the elution column with food anhydrous petroleum ether. Water petroleum ether can...

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Abstract

The invention discloses an industrial gardenia yellow pigment purification device and a method for extracting the gardenia yellow pigment. The device comprises an elution column, a vacuum recycling tank, a condenser, a dehydration column and a solvent heater, wherein the elution column, the vacuum recycling tank, the condenser, the dehydration column and the solvent heater are sequentially communicated with one another by virtue of pipelines; a sampling pipe is communicated with a pipeline between the elution column and the vacuum recycling tank; a sampling valve is arranged on the sampling pipe; a vacuum pump is arranged at the outlet of the dehydration column; a collection pipe is communicated with a pipeline between the dehydration column and the solvent heater; a collection valve is arranged on the collection pipe; the dehydration column is filled with dehydrating agents; and a water bath heating jacket is arranged outside the vacuum recycling tank in a sleeving manner. The method comprises the step of purifying gardenia yellow pigment from fine powder of solid gardenia yellow pigments containing lots of impurities. The device is simple in structure and convenient to use and is suitable for industrial production. The method is simple, low in cost, clean and environmentally friendly. The gardenia yellow pigment obtained by using the method is small in losses, high in purity and high in color value.

Description

technical field [0001] The invention relates to the technical field of natural product purification, and more specifically relates to an industrial purification device for gardenia yellow pigment and a method for purifying gardenia yellow pigment. Background technique [0002] In the process of natural product extraction, separation and purification of the target product is often the key to the technology, and extraction is a fairly mature technology. At present, there are two-phase or multi-phase extraction, high-speed countercurrent extraction, column chromatography, precipitation crystallization and other methods commonly used in production to purify the target product after natural product extraction. These methods have their own advantages and disadvantages, and it is necessary to scientifically select an effective purification method or a combination of multiple methods according to the chemical properties of the target product and the impurities in the extract to achi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02B01D1/00B01D1/30C09B61/00C09B67/54
Inventor 董静洲郭秋菊王庆
Owner HUBEI UNIV FOR NATITIES
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