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Water-soluble capsanthin

A technology for capsanthin and capsanthin, which is applied in the field of pigments, can solve the problems of inability to meet the demand for color and luster, low product color price and light absorption, low product color price, etc., and achieves improved pigment stability, good coloring effect, and high quality. The effect of the separation effect

Active Publication Date: 2017-12-01
河北东之星生物科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The oil-soluble capsanthin prepared by the traditional solvent method is used to prepare water-soluble capsanthin. The color value of the product is not high (less than 100), the color is yellowish, and the tinting strength is not strong, so it cannot meet people's needs for color.
Moreover, when the coloring object is a water-soluble substance, the oil-soluble capsanthin cannot play its role
Patent document CN201310719914 discloses a preparation method of water-soluble capsanthin, through saponification reaction and emulsification steps, and using alcohol as an extractant, but this method has the problems of low yield, low color value and light absorption ratio of the product

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0034] Its preparation method steps are as follows:

[0035]A. Saponification reaction: Add 3 to 5 times the weight of lye to the fat-soluble capsanthin prepared by the traditional method, and react under continuous stirring at 40 to 50°C for 3 to 4 hours to obtain a saponified mixture. The lye is 30-50g / L sodium hydroxide solution or potassium hydroxide solution.

[0036] B. Solvent extraction: Add 1.5 to 3 times the weight of n-hexane into the saponification mixture prepared in step A, stir at 40 to 50°C for 20 to 30 minutes, keep warm and let the layers stand for 2 to 3 hours, then Separate the organic phase, continue to add 1.5 to 3 times the weight of n-hexane in the water phase, and extract again. After repeating the above steps for 2 to 3 times, discard the water phase, and combine the separated organic phases. Under the conditions of 50-60°C and pressure of -0.04-0.06Mpa, carry out vacuum concentration until the volume is reduced by 50-70%, to obtain a concentrated ex...

Embodiment 1

[0040] A water-soluble capsanthin, comprising capsanthin, capsanthin, compound emulsifier and antioxidant, wherein the mass ratio of the total mass of capsanthin and capsanthin to the compound emulsifier is 1:2, anti- The mass percent content of the oxidizing agent is 1%, the color value is 160, and the light absorption ratio is 1.0421.

[0041] Its preparation method steps are as follows:

[0042] A. Saponification reaction: Add 3 times the weight of 30g / L sodium hydroxide solution to the fat-soluble capsanthin prepared by the traditional method, and react under continuous stirring at 40°C for 3 hours to obtain a saponified mixture.

[0043] B. Solvent extraction: Add 1.5 times the weight of n-hexane into the saponification mixture prepared in step A, stir at 40°C for 20 minutes, keep warm and stand for 2 hours, then separate the organic phase and pour it into water Continue to add 1.5 times the weight of normal hexane in the phase, and extract again. After repeating the abo...

Embodiment 2

[0048] This embodiment is basically the same as Embodiment 1, the difference is:

[0049] A water-soluble capsanthin, comprising capsanthin, compound emulsifier and antioxidant, wherein the mass ratio of capsanthin to compound emulsifier is 1:1.7, the mass percentage of antioxidant is 3%, and the color value is 170, the absorbance ratio is 1.1514.

[0050] Its preparation method steps are as follows:

[0051] A. Saponification reaction: Add 5 times the weight of 50 g / L potassium hydroxide solution to the fat-soluble capsanthin, stir and react at 50° C. for 4 hours to obtain a saponification mixture.

[0052] B. Solvent extraction: Add 3 times the weight of n-hexane into the saponification mixture, stir at 50°C for 30 minutes, keep warm and stand for 3 hours to separate the layers, repeat the extraction 3 times and combine the organic phases. , concentrated under reduced pressure to a volume reduction of 70% under the condition of -0.06Mpa to obtain a concentrated extract.

...

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Abstract

The invention discloses water-soluble capsanthin, and belongs to the field of high-color-value and high-extinction-ratio water-soluble capsanthin and a preparation method thereof. The water-soluble capsanthin is used in the field of coloring of the industries such as food, pharmacy and dyeing. The color value is 140-180, and the extinction ratio is greater than 1.0000. The preparation method of the water-soluble capsanthin comprises the following steps: carrying out saponifying and hydrolyzing on fat-soluble capsanthin; after extracting the fat-soluble capsanthin with a solvent, carrying out separation and purification by a column chromatography to obtain eluant of main coloring ingredients, which comprise capsaicin and capsorubin, of the capsanthin, concentrating the eluant, and then emulsifying the emulsify. The water-soluble capsanthin has the advantages of high color value, high extinction ratio, red and bright color, easiness in coloring, and no precipitation or layering after centrifuging.

Description

technical field [0001] The invention relates to a pigment, especially a water-soluble capsanthin with high color value and high light absorption ratio, which is used for coloring in industries such as food, pharmacy, printing and dyeing. Background technique [0002] Capsanthin, also known as capsanthin, is a natural oil-soluble colorant extracted from peppers. Capsanthin is mainly composed of red component and yellow component, in which the red component is more polar capsanthin and capsanthin; the yellow component is mainly less polar zeaxanthin, β-carrot Among them, the main coloring components of capsanthin are capsanthin and capsanthin, and the color value and light absorption ratio of capsanthin are higher than those of capsanthin. [0003] The absorbance ratio of capsanthin refers to the absorbance ratio of capsanthin under visible light at 470nm and 454nm after being dissolved in acetone, and the absorbance ratio can be used to reflect the ratio of red and yellow co...

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/54C09B67/42
CPCC09B61/00C09B67/0096
Inventor 何志芳田瑞玲陈素芳孔利鹏顾民李增友
Owner 河北东之星生物科技股份有限公司
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