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Haematochrome extracted from fragrans seed peel and its preparation process and application

A technology of seed skin and red pigment, applied in the preparation of red pigment, the field of red pigment

Inactive Publication Date: 2011-05-04
GUANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has not been found that someone has used the osmanthus seed skin as a raw material to extract the red pigment.

Method used

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  • Haematochrome extracted from fragrans seed peel and its preparation process and application
  • Haematochrome extracted from fragrans seed peel and its preparation process and application
  • Haematochrome extracted from fragrans seed peel and its preparation process and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] Put the pulverized osmanthus seed skin into an ethanol solution with a pH=4 and a volume concentration of 90%, and extract at 100°C for 10 minutes;

[0090] 2) the obtained extract is cooled and suction filtered;

[0091] 3) After the filtrate is evaporated, the residue obtained is the red pigment extracted from the osmanthus osmanthus seed skin.

Embodiment 2

[0093] 1) Put the pulverized osmanthus seed skin into an acetone solution with a pH=1 and a volume concentration of 20%, and extract at 80° C. for 40 minutes;

[0094] 2) the obtained extract is cooled and suction filtered;

[0095] 3) After the filtrate is evaporated, the residue obtained is the red pigment extracted from the osmanthus osmanthus seed skin.

Embodiment 3

[0097] 1) Clean the fresh osmanthus seed skins and peel off the skins. After washing the pulp, put the skins into an oven to dry at 80°C. The obtained dried osmanthus seed skins are crushed and put into water, and hydrochloric acid is added to make the pH = 2 , extracted at 20°C for 40 minutes;

[0098] 2) cooling and filtering the obtained extract;

[0099] 3) After the filtrate is evaporated, the residue obtained is the red pigment extracted from the osmanthus osmanthus seed skin.

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Abstract

The present invention discloses one kind of haematochrome extracted from sweet-scented osmantus seed coat. The haematochrome is prepared through extracting sweet-scented osmantus seed coat with acid polar solvent, filtering the extracted liquid and evaporating the filtrate to obtain the residue as the haematochrome. The haematochrome extracted from sweet-scented osmantus seed coat has high water and alcohol solubility, high dyeing power, high safety, no toxic side effect and wide use. It may be used as color for food, beverage, medicine, health product, cosmetics, etc.

Description

(1) Technical field: [0001] The invention relates to a food pigment, in particular to a red pigment extracted from osmanthus osmanthus seed skin; the invention also relates to a preparation method and application of the red pigment. (two) background technology: [0002] Food coloring, also known as coloring agent, is a food additive for the purpose of food coloring and improving food color. With the rapid development of the food industry, the demand for food coloring is also increasing. Due to their different sources, food coloring can be divided into two categories: synthetic coloring and natural coloring. As far as the history of food coloring application is concerned, before the middle of the 19th century, relatively crude natural coloring was used as food coloring; Later, due to the advent of synthetic pigments one after another, and because of their bright color, good stability, strong tinting strength, suitable for color matching, easy to dissolve, uniform quality, odo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00A23L1/27A23L5/40
Inventor 潘英明黄志丽王恒山
Owner GUANGXI NORMAL UNIV
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