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Preparation method and application of extract of Baphicacanthus cusia Brem

A technology of indigo and its extract, which is applied in the research field of natural plant extracts, can solve the problems of environmental pollution, high toxicity of products, etc.

Inactive Publication Date: 2016-02-03
CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coatings for digital inkjet printing in the prior art, especially non-aqueous coatings, generally use organic solvents and synthetic dyes, resulting in high toxicity and serious environmental pollution

Method used

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  • Preparation method and application of extract of Baphicacanthus cusia Brem
  • Preparation method and application of extract of Baphicacanthus cusia Brem
  • Preparation method and application of extract of Baphicacanthus cusia Brem

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Wash, dry, and pulverize the cyanide grass to 25 meshes to obtain the cyanoid grass pulverization, and then add the cyandicyst grass pulverization to a pH value of 8, and a volume percentage concentration of 75% (V 乙醇 :V 水 ) in the aqueous ethanol solution to obtain the extraction system,

[0024] Wherein, the pH value of the aqueous ethanol solution is regulated by sodium bicarbonate, and the mass ratio of the edulis edulis to the aqueous ethanol solution is 1:20;

[0025] (2) Under stirring, the extraction system obtained in step (1) is heated up, and refluxed for 2 hours;

[0026] (3) Filter the system after the reflux extraction in step (2) while it is hot at a temperature of 85-90° C., and cool the obtained filtrate. During the cooling process, solid substances are precipitated. After the filtrate is cooled to 2° C., filter The precipitated solid matter was collected and dried at 65°C to obtain the indigo extract, which was stored away from light.

Embodiment 2

[0028] (1) Wash, dry, and pulverize the cyanide grass to 35 meshes to obtain the cyanoid grass pulverization, and then add the cyandicyst grass pulverization to a pH value of 7, and a volume percentage concentration of 85% (V 乙醇 :V 水 ) in an aqueous ethanol solution to obtain an extraction system,

[0029] Wherein, the pH value of the aqueous ethanol solution is regulated by sodium carbonate, and the mass ratio of the edulis edulis and the aqueous ethanol solution is 1: 25;

[0030] (2) Under stirring, the extraction system obtained in step (1) is heated up, and refluxed for 2 hours;

[0031] (3) Filter the system after the reflux extraction in step (2) while it is hot at a temperature of 85-90° C., and cool the obtained filtrate. During the cooling process, solid substances are precipitated. After the filtrate is cooled to 2° C., filter The precipitated solid matter was collected and dried at 70°C to obtain the indigo extract, which was stored away from light.

Embodiment 3

[0033] Based on the indigo extract prepared in Example 1, the inkjet printing paint is prepared:

[0034] by weight percentage

[0035]

[0036] The rest is a mixed solvent of glycerin and water, wherein the volume ratio of glycerin and water is 1:1

[0037] Add indigo grass extract, viscosity regulator, surfactant, pH regulator, and water-based polyurethane adhesive to a mixed solvent of glycerin and water, stir evenly at room temperature, and pass the resulting mixture through pore diameters of 0.45 μm and 0.22 μm in sequence. μm membrane to obtain the final inkjet printing paint.

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Abstract

The invention especially relates to a preparation method and application of extract of Baphicacanthus cusia Brem, belonging to the field of research on extract of natural plants. The preparation method comprises the following steps: subjecting Baphicacanthus cusia Brem to cleaning, air drying and crushing, then adding crushed Baphicacanthus cusia Brem into ethanol water and carrying out heating and reflux extraction; and filtering a system obtained after reflux extraction while the system is hot and cooling obtained filtrate, wherein a solid substance is precipitated in the process of cooling and the solid substance is the extract of Baphicacanthus cusia Brem. The extract of Baphicacanthus cusia Brem prepared in the invention is applied to prevention and treatment of allergic dermatitis and acne and exerts good effect in prevention and treatment of soil-borne diseases.

Description

technical field [0001] The invention belongs to the field of research on natural plant extracts, and in particular relates to a preparation method and application of an indigo extract. Background technique [0002] Indigo is a herbaceous plant. Its cultivation and production have a long history among the Yao people. The main use of indigo extract is to dye cloth, and it can also be used medicinally. In Yao's family, the indigo extract is not only used by themselves, but also sold as a product in the market, which is a dye specially needed by ethnic minorities. The seeds of indigo grass are small and look like fir seeds. They are collected after the Qingming Festival in March, buried in the soil in May and set up a shed for seedling cultivation, and transplanted in July to August. Most of them are transplanted in taro fields and beside Qinggou, preferably in places with moist soil. The plant height of indigo is two to three feet, and the school leaf stems are green. It has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/54D06P1/34D06P1/52D06P1/613A61K36/195A61K36/315A61K36/48A61K36/704A01N65/20A01N65/30A01N65/08A61P17/02A61P17/00A61P37/08A01P3/00
CPCA61K36/195A61K36/35A61K36/704C09B61/00D06P1/34D06P1/52D06P1/613
Inventor 纪俊玲王东方汪媛彭勇刚陈群席海涛
Owner CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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