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Method for extracting carthamin yellow from safflowers

A technology of safflower yellow pigment and safflower, which is applied in the direction of chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of long process, high energy consumption, low yield, etc., and reduce production costs and water consumption. consumption and energy consumption, and the effect of improving extraction efficiency

Active Publication Date: 2017-03-15
乌鲁木齐上善元生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Safflower is rich in safflower yellow, and the proportion of safflower yellow in said safflower is 20% to 30%. Problems such as low yield greatly increase the production cost of safflower yellow

Method used

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  • Method for extracting carthamin yellow from safflowers

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Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1Shown, this embodiment provides a kind of method extracting safflower yellow pigment from safflower, specifically:

[0045] Pretreatment of fresh safflower: sorting fresh safflower and carrying out acid treatment to the fresh safflower after sorting, to remove the ash content in the sorted safflower, and acid-treating the fresh safflower Juicing and solid-liquid separation are carried out, wherein, the sorted safflower is added to 0.2% hydrochloric acid and soaked for 10 minutes, and after washing with water, the residual acid content is not more than 0.4g / L;

[0046] Water leaching: extract the residue obtained from solid-liquid separation to obtain an extract; wherein, the solid-to-liquid ratio of the residue to deionized water is 1:10, the soaking time is 1.8 hours, and the extraction temperature is 40°C. The extraction time is 2.5 hours, and the number of extractions is 2 times: put the residue into the extraction tank, add deionized water of the fi...

Embodiment 2

[0053] Such as figure 1 Shown, this embodiment provides a kind of method extracting safflower yellow pigment from safflower, specifically:

[0054] The pretreatment of fresh safflower: sorting fresh safflower, carrying out acid treatment to the fresh safflower after sorting, and squeezing the fresh safflower after acid treatment and separating solid and liquid, wherein, the sorted fresh safflower The safflower is soaked in 0.2% sulfuric acid for 10 minutes, and washed with water until the residual acid content is not more than 0.4g / L;

[0055] Water leaching: the residue obtained from solid-liquid separation is subjected to water leaching to obtain an extract; wherein, the solid-liquid ratio of the residue to deionized water is 1:11, the immersion time is 2.2 hours, and the leaching temperature is 30°C. The extraction time is 3.5 hours, and the number of extractions is 2 times. Put the residue into the extraction tank, add the first quality deionized water for the first extra...

Embodiment 3

[0062] Such as figure 1 Shown, this embodiment provides a kind of method extracting safflower yellow pigment from safflower, specifically:

[0063] The pretreatment of fresh safflower: sorting fresh safflower, carrying out acid treatment to the fresh safflower after sorting, and squeezing the fresh safflower after acid treatment and separating solid and liquid, wherein, the sorted fresh safflower The safflower is soaked in 0.2% sulfuric acid for 10 minutes, and washed with water until the residual acid content is not more than 0.4g / L;

[0064] Water leaching: extract the residue obtained from solid-liquid separation to obtain an extract; wherein, the solid-to-liquid ratio of the residue to deionized water is 1:11, the immersion time is 2.0 hours, the leaching temperature is 35°C, and the leaching The extraction time is 3.0 hours, and the number of extractions is 2 times: put the residue into the extraction tank, add the first quality deionized water for the first extraction, ...

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Abstract

The invention discloses a method for extracting carthamin yellow from safflowers. The method comprises the steps that a gas bag juicer is used for juicing fresh safflowers and performing solid-liquid separation, residues obtained after solid-liquid separation is subjected to water extraction, and the water extraction solution is refined. According to the step of refining the water extraction solution, primary filtering, resin adsorption and eluent centrifuging, primary reverse osmosis concentration and secondary reverse osmosis concentration are included, and therefore the high-content carthamin yellow is obtained. According to the method for extracting carthamin yellow, the water consumption and energy consumption of the carthamin yellow extraction process are lowered, the carthamin yellow extraction rate reaches up to 96% or above, and the production cost of the carthamin yellow is greatly lowered.

Description

technical field [0001] The invention relates to the technical field of safflower yellow extraction, more specifically, the invention relates to a method for extracting safflower yellow from safflower. Background technique [0002] In recent years, the production of natural pigments in my country has developed rapidly. In 2002, the government issued a regulation prohibiting the use of various chemically synthesized pigments in "Grade A" green food, which greatly promoted the development of my country's natural pigment market. According to statistics, in 2005, the area of ​​pigment peppers, safflowers, and marigolds planted in Northeast my country, Shandong, Shanxi, and Xinjiang had reached more than 800,000 mu, and the annual output of natural pigments was also close to 4,000 tons, second only to India. However, due to the cost of consumption, domestic deep processing and finishing of natural pigments are still lacking. [0003] Safflower is rich in safflower yellow, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D309/10C09B61/00
CPCC07D309/10C09B61/00
Inventor 陈建国刘淼
Owner 乌鲁木齐上善元生物科技有限公司
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