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Method for extracting red pigment in Viburnum sargentii fruit

A technology of Tianmu Qionghua and an extraction method, which is applied in the directions of application, food preparation, food science and the like, and can solve the problems of no Tianmu Qionghua red pigment extraction method and the like.

Inactive Publication Date: 2012-05-23
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that there is no specific method for extracting the red pigment of Viburnum viburnum, the present invention provides a method for extracting the red pigment from the fruit of viburnum viburnum

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0007] Specific embodiment one: in this specific embodiment, the extraction of the red pigment of Qionghua Tianmu fruit is carried out according to the following steps: one, mixing and homogenizing: acetic acid-sodium acetate buffer solution, pectinase and Qionghua Tianmu fruit are put into a mixer together 2. Enzymolysis: Transfer the homogenate to a closed glass container, and then place it in a constant temperature water bath for enzymolysis to obtain an enzymolysis solution; 3. Suction filtration: Dilute the enzymolysis solution Suction filtration to obtain a clarified filtrate; 4. Solvent evaporation: the filtrate is rotatively evaporated to remove the solvent; 5. Freeze-drying method is used to obtain the red pigment powder of Viburnum viburnum fruit.

specific Embodiment approach 2

[0008] Embodiment 2: This embodiment is different from Embodiment 1 in that: the enzymatic hydrolysis temperature of pectinase is 30°C-60°C. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific embodiment three: the difference between this specific embodiment and specific embodiment one is: the acetic acid-sodium acetate buffer solution is the enzymolysis medium, and the pH value of the acetic acid-sodium acetate buffer solution is the enzymolysis pH value, and the acetic acid-sodium acetate buffer solution The pH value of the solution is 4-6.5. Others are the same as in the first embodiment.

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Abstract

The invention provides a method for extracting red pigment from a fruit of Viburnum sargentii, and relates to the method for extracting pigments from the fruit of Viburnum sargentii. The invention solves the problem that no prior method is specially for extracting the red pigment from the fruit of Viburnum sargentii. The red pigment of the fruit of Viburnum sargentii is extracted according to thefollowing steps: acetic acid-sodium acetate solution, pectinase, and the fruit of Viburnum sargentii are put in a mixer and broken to homogenate, infused to a 15 mL plug pipe, and then put in a thermostat water bath; enzymolysis is conducted; the enzymolysis liquid is filtered; the filtrate is rotationally evaporated to remove the solvent, and cooled and dried; and red pigment powder of Viburnum sargentii is acquired. The method uses the pectinase to extract the red pigment of Viburnum sargentii, thereby avoiding the problems of low production rate, low purity, residual solvent, difficult solvent recycling, and long production cycle produced when a solvent method is used to extract the red pigment. The method has the advantages of high production rate and short production cycle; and the acquired red pigment belongs to flavonoid naturalpigment, has no harm to a human body, and can be used for coloring food.

Description

technical field [0001] The invention relates to a method for extracting the pigment of the tianmuqionghua fruit. Background technique [0002] Natural pigments are favored by people because of their safety and reliability, certain nutritional and pharmacological effects, and natural coloring. Natural red pigments are divided into fat-soluble natural red pigments and water-soluble natural red pigments. The application of fat-soluble natural red pigments is limited due to poor solubility in water and uneven dispersion. Water-soluble natural red pigments exist in plant cell fluids. Due to their uniform dispersion in water, natural coloring, high safety, and some have certain nutritional value or pharmacological effects, they are gradually being valued in the development of the modern food industry. [0003] At present, the extraction method of water-soluble natural red pigment mainly adopts extraction method, after the pericarp of ripe and dry fruit is about to be pulverized, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/275A23L1/28A23L1/29A23L5/43A23L33/105
Inventor 黄占华张斌
Owner NORTHEAST FORESTRY UNIVERSITY
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