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Natural plant color lake and preparation method thereof

A technology of natural plant pigments and natural plants, which is applied in the field of lake pigments and their preparation, can solve problems such as difficulty in ensuring the quality and safety of raw materials, failure to meet market needs, and complicated preliminary work, and achieve complete color systems and methods The effect of simplicity and high product safety

Pending Publication Date: 2018-11-13
山东中惠生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention with the application number of 2005100043900.5 "Monascus color lake and its preparation method" introduces a method for preparing color lake by treating the red yeast pigment solution with divalent metal salt. Complicated, it is difficult to guarantee the quality and safety of raw materials; at the same time, the obtained color lake is relatively simple, which cannot meet the needs of the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment one: prepare red yeast rice lake (red), comprise the following steps:

[0032] (1) Preparation of precipitant solution: add 50% (weight percentage, hereinafter similar) precipitant to water, precipitant is calcium acetate of food-grade metal salt, stir and dissolve at 45° C., filter through 100 mesh, and prepare precipitant solution;

[0033] (2) Preparation of red yeast pigment liquid: crush red yeast rice or red yeast fermentation broth filter cake, pass through an 80-mesh sieve, and use 70% ethanol to extract the pigment components. The liquid-to-material ratio is 8:1, and the liquid-to-solid ratio unit is ml / g, extraction temperature 60°C, stirring extraction time 120min, filter, vacuum concentrate and recover ethanol, and prepare Monascus pigment solution;

[0034] (3) Precipitation: Add the precipitant solution according to the ratio of the volume of the monascus pigment solution: the volume of the precipitant solution is 1.6:1, then stir with a mixer ...

Embodiment 2

[0039] Embodiment two: prepare hematoxylin starch (pink), comprise the following steps:

[0040] (1) Prepare precipitant solution: add 48% precipitant in water, precipitant is food-grade metal salt alum, stir and dissolve at 50 DEG C, filter through 100 mesh, be mixed with precipitant solution;

[0041] (2) Preparation of hematoxylin pigment solution: pulverize hematoxylin, pass through 80 mesh sieve, extract the pigment components with 35% ethanol, the ratio of liquid to material is 5:1, the extraction temperature is 80°C, the extraction time is stirred for 100min, and filtered. Vacuum concentration and recovery of ethanol to prepare a hematoxylin solution;

[0042] (3) Precipitation: Add the precipitant solution according to the ratio of the volume of the hematoxylin pigment solution: the volume of the precipitant solution is 1.6:1, then stir with a mixer for half an hour, adjust the pH to 6-8, continue to stir for one hour, and let the precipitation stand for 10 Hour;

[...

Embodiment 3

[0047] Embodiment three: prepare comfrey lake (purple black), comprise the following steps:

[0048] (1) Prepare a precipitant solution: add 40% precipitant to water, the precipitant is food-grade metal salt aluminum chloride, stir and dissolve at 60° C., filter through 100 mesh, and prepare a precipitant solution;

[0049] (2) Preparation of comfrey pigment solution: pulverize comfrey, pass through a 80-mesh sieve, extract the pigment components with 90% ethanol, the ratio of liquid to material is 15:1, the extraction temperature is 60°C, the stirring and extraction time is 160min, filter, Vacuum concentration and recovery of ethanol to prepare comfrey pigment liquid;

[0050] (3) Precipitation: Add the precipitant solution according to the ratio of the volume of the comfrey pigment solution: the volume of the precipitant solution is 1.6:1, then stir with a mixer for half an hour, adjust the pH to 6-8, continue to stir for one hour, and let the precipitation stand for 10 -15...

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Abstract

The invention relates to a lake pigment and a preparation method thereof, in particular to a natural plant color lake and a preparation method thereof. The natural plant color lake is prepared from raw materials, namely natural plants of red yeast rice, hematoxylon, lithospermum, cpe jasmine, carthamus tinctorius and the like. A metallic salt raw material is adopted as a precipitant, and the natural plant color lake is rich in raw material source, safe and healthy, free of heavy metal, simple in method and capable of meeting requirements of people on safety, nature and multifunction.

Description

technical field [0001] The invention relates to a color lake pigment and a preparation method thereof, in particular to a natural plant color lake and a preparation method thereof. Background technique [0002] Lake refers to the use of metal salts or other precipitating agents to make water-soluble pigments into water-insoluble particles. Compared with water-soluble pigments, lakes usually have bright shade, good dispersibility and hiding power, insoluble in water and most organic reagents, stable in the pH range of 3-9, and have good light resistance and heat resistance. [0003] Among the lake pigments used at this stage, chemically synthesized lake pigments are commonly used. Although they have the advantages of bright color, good light and heat stability, and good dispersibility, the raw materials for water-soluble synthetic pigments are mostly benzene, toluene, Naphthalene and other chemical products are used as raw materials through a series of organic reactions such...

Claims

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Application Information

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IPC IPC(8): C09B61/00C09B67/42
CPCC09B61/00C09B67/0092
Inventor 赵吉兴李耀满孝庆
Owner 山东中惠生物科技股份有限公司
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