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Method for extracting carotenoid monomer pigment mainly containing zeaxanthin from wolfberries

A technology of zeaxanthin and carotene, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of high production cost, difficulty in large-scale preparation, complicated preparation process, etc., and achieve low cost and smooth preparation process The effect of being simple and easy to implement and the preparation process is simple

Inactive Publication Date: 2017-03-29
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] A wolfberry pigment extract and its preparation method, patent number CN201510711042.0, publication number CN105232774A, requires ultrafine grinding of wolfberry, using supercritical CO 2 Extraction, activated carbon adsorption, desorption, and drying, the extracted wolfberry pigment is still the ester of wolfberry pigment, the preparation process is relatively complicated, the production cost is high, and it is not easy to prepare on a large scale

Method used

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  • Method for extracting carotenoid monomer pigment mainly containing zeaxanthin from wolfberries
  • Method for extracting carotenoid monomer pigment mainly containing zeaxanthin from wolfberries
  • Method for extracting carotenoid monomer pigment mainly containing zeaxanthin from wolfberries

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Embodiment 1

[0064] A method for extracting zeaxanthin-based carotenoid monomer pigments from wolfberry, specifically comprising the following steps:

[0065] A. Crushing

[0066] Crush and sieve wolfberry, the particle size of wolfberry powder is 180~300μm;

[0067] B. Extraction preparation

[0068] Add KOH powder to the ethanol solution with a mass concentration of 95%, stir and dissolve, and the KOH mass concentration is 2g / ml to make a mixed extract;

[0069] C. Pigment extraction

[0070] Lycium barbarum powder is added to the mixed extract solution, the wolfberry powder and the mixed extract solution are mixed and added at a mass ratio of 1:5, the temperature is raised to 40°C for an extraction reaction for 1 hour, the extraction reaction is combined with stirring and ultrasonic treatment, the stirring speed is 150rpm, the ultrasonic power is 150w, and the frequency 30MHz, filter impurities to obtain wolfberry pigment extract;

[0071] D. Separation

[0072] Add mass concentrat...

Embodiment 2

[0080] A method for extracting zeaxanthin-based carotenoid monomer pigments from wolfberry, specifically comprising the following steps:

[0081] A. Crushing

[0082] Crush and sieve wolfberry, the particle size of wolfberry powder is 300 μm;

[0083] B. Extraction preparation

[0084] Add KOH powder to the ethanol solution with a mass concentration of 100%, stir and dissolve, and the KOH mass concentration is 8g / ml to make a mixed extract;

[0085] C. Pigment extraction

[0086] Lycium barbarum powder is added to the mixed extract solution. The wolfberry powder and the mixed extract solution are mixed and added at a mass ratio of 1: 15. The temperature is raised to 60°C for extraction reaction for 5 hours. The extraction reaction is combined with stirring and ultrasonic treatment. The stirring speed is 200rpm, the ultrasonic power is 350w, and the frequency 80MHz, filter impurities to obtain wolfberry pigment extract;

[0087] D. Separation

[0088] Add HCl solution with a...

Embodiment 3

[0096] A method for extracting zeaxanthin-based carotenoid monomer pigments from wolfberry, specifically comprising the following steps:

[0097] A. Crushing

[0098] The wolfberry is crushed and sieved, the particle size of the wolfberry powder is 250 μm;

[0099] B. Extraction preparation

[0100] Add KOH powder to the ethanol solution with a mass concentration of 100%, stir and dissolve, and the KOH mass concentration is 6g / ml to make a mixed extract;

[0101] C. Pigment extraction

[0102] Lycium barbarum powder is added to the mixed extract solution, the wolfberry powder and the mixed extract solution are mixed and added at a mass ratio of 1:5, the temperature is raised to 55°C, and the extraction reaction is carried out for 3 hours. The extraction reaction is combined with stirring and ultrasonic treatment. The stirring speed is 180rpm, and the ultrasonic power is 200w. Frequency 50MHz, filter impurities to obtain wolfberry pigment extract;

[0103] D. Separation

...

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Abstract

The invention relates to the field of plant extract and concretely relates to a method for extracting a carotenoid monomer pigment mainly containing zeaxanthin from wolfberries and the carotenoid monomer pigment. The method utilizes wolfberries as raw materials and processes such as extraction preparation, separation, purification and refining to directly produce the carotenoid extract materials which mainly contain a zeaxanthin monomer and have different purities. The method is free of complex processes such as extraction of carotenoid ester and then saponification hydrolysis. The method has simple processes, can be implemented easily, utilizes a simple solvent, is environmentally friendly, realizes small pollution and a low cost and is suitable for large-scale industrial production. The carotenoid monomer pigment mainly containing zeaxanthin has high purity, a high extraction rate and little solvent residual.

Description

technical field [0001] The invention relates to the field of plant extracts, in particular to a method for extracting zeaxanthin-based carotenoid monomer pigments from wolfberry. Background technique [0002] As people pay more and more attention to food safety, it is becoming a trend that natural pigments replace artificial pigments as food additives. Natural pigments are mainly derived from edible pigments of roots, stems, leaves, flowers, fruits, animals, microorganisms, etc. of natural plants, most of which are derived from natural plants. The vast majority of plant pigments have no side effects and are highly safe. Most of them are biologically active substances and are functional active ingredients in herbal medicines and health foods. They are widely used in industries such as medicine, food, tobacco, cosmetics, breeding, and textiles. . [0003] Lycium barbartum (Lycium barbartum L.) is a multi-branched shrub plant of the genus Lycium barbarum in the family Solanac...

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/54C07C403/24
CPCC09B61/00C07C403/24C09B67/0096
Inventor 梁卿邵士俊
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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