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A kind of natural pigment color protecting agent, preparation method and application

A technology of natural pigments and color-protecting agents, applied in the direction of natural dyes, carboxylate preparations, chemical instruments and methods, etc., can solve the problems of harmfulness to the human body and insufficient range of application, and achieve less impurity content and outstanding color-protecting effect , The effect of application process safety

Active Publication Date: 2017-07-04
杨永
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Although the above patents or patent applications can have the effect of fresh-keeping, anti-corrosion and color protection for certain individual foods, there are also some practical problems and defects: one is that the scope of application is not wide enough, and the other is that many chemically synthesized ingredients are used for a long time. The use is harmful to the human body. The third is that it is a compound product with multiple ingredients, and there are many ingredients.

Method used

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  • A kind of natural pigment color protecting agent, preparation method and application
  • A kind of natural pigment color protecting agent, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation of water-soluble and fat-soluble color-protecting agent, concrete method and steps are as follows:

[0030] (1) Water extraction: 100kg of rosemary raw material is extracted with 8-10 times the amount of water, the extraction temperature is 70-75°C, and the time is 1.5-2h;

[0031] (2) Concentration: the extracted extract is concentrated under reduced pressure to 100-150L, ​​the concentration temperature is 55-60°C, and the concentration vacuum is -0.085-0.09mpa;

[0032] (3) Extraction: Use 0.5-1 times the amount of ethyl acetate to extract and remove impurities, and concentrate the lower aqueous layer to a specific gravity of 1.15-1.2;

[0033] (4) Column separation: use the above extract concentrate to load the sample, use polyamide as filler, ethanol as eluting solvent, polyamide mesh size is 80-120 mesh, column volume is 240-300L, ethanol concentrations for elution are respectively 20% to 30%, 35% to 50%, the total volume of ethanol used for elutin...

Embodiment 2

[0046] Stability and color protection test of high-purity rosmarinic acid applied to natural water-soluble pigments.

[0047] Experiment 1: Based on the application of high-purity rosmarinic acid to natural water-soluble pigments, the implementation of the stability and color protection test, the basic composition is as follows:

[0048] High-purity rosmarinic acid (95—98%) 0.1g

[0049] Natural Strawberry Red 0.05g

[0050] water 100ml

[0051] First dissolve rosmarinic acid into a clear liquid by heating and stirring, then add the pigment and stir until fully dissolved, take three 10ml prepared pigment solutions in a test tube, and prepare a blank pigment solution at the same concentration. Place it in an incubator at 50°C, observe its color change, and measure the absorbance value after 72 hours.

[0052] Experiment 2: Based on the application of high-purity rosmarinic acid to natural water-soluble pigments, the implemented stability and color protection test, its prepar...

Embodiment 3

[0075] Stability and color protection test of carnosic acid applied to natural water-soluble pigments.

[0076] Experiment 5: Based on the application of high-purity carnosic acid to natural fat-soluble pigments, the implementation of the stability and color protection test, the basic ratio and method are as follows:

[0077] Capsanthin 90—95 parts

[0078] High-purity carnosic acid (5%) 5-10 parts

[0079] Petri dish method: the above components are mixed in proportion, vortexed and stirred evenly, that is, the color-protecting capsanthin is ready for use. Grind 40g of salt and 0.3g of color-protecting capsanthin evenly, weigh 15g in a dry petri dish, spread it flat, compact it, and make three groups parallel to the blank at the same time and expose it to the sun. After 2 hours, evaluate the color by sensory fading. Sample vs blank effect.

[0080] Filter paper method: Weigh 0.1-0.3g of the blank with a color value of 150 and the sample added with a color-protecting agent,...

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Abstract

The invention provides a natural pigment color fixative and a preparation method thereof. The preparation method comprises the following steps: performing water extraction, concentration, extraction, column separation, crystallization and recrystallization on a rosemary raw material to obtain high-purity rosmarinic acid with the content of 95-98%; and performing alcohol extraction, concentration, centrifugation, continuous phase transition extraction, crystallization, recrystallization and drying on the rosemary raw material subjected to water extraction to obtain high-purity carnosic acid with the content of 95-98%, and performing diluting and compounding to obtain a carnosic acid preparation. The rosmarinic acid and the carnosic acid prepared by the method provided by the invention can be used as a color fixative for water-soluble pigments and lipid-soluble pigments, and compared with low-content rosmarinic acid, low-content carnosic acid and a chemically synthesized natural pigment color fixative, the rosmarinic acid and the carnosic acid have the advantages of being low in impurity content, light in taste and color, more outstanding in color protection effect, safer in application process, greater in application significance and wider in application range.

Description

technical field [0001] The invention belongs to the technical field of food pigment color protection, and more specifically relates to a natural pigment color protection agent and its preparation method and application. Background technique [0002] Rosemary is a precious natural spice plant. It emits a fragrance during the growing season, which has the effect of refreshing the heart. Rosemary mainly contains active substances such as strong antioxidants. Carnosic acid, ursolic acid, and rosmarinic acid are the three main antioxidant active substances in rosemary plants, which are widely used in food, medicine, daily chemicals, spices, and seasonings. Rosemary antioxidant is currently recognized as the natural antioxidant with the highest known antioxidant effect and safety. This natural antioxidant has been widely used in developed countries such as Europe and the United States. In recent years, it has gradually been applied to various fields in China. . [0003] Natural...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00C07C69/732C07C67/48C07C67/56C07C67/58C07C62/32C07C51/42C07C51/48
Inventor 旷勇曹庸张世寅汪和平杨永尹修权
Owner 杨永
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