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Grape skin red pigment preparation method

The technology of grape skin red pigment and its manufacturing method is applied in the field of making grape skin red pigment, which can solve the problem of underutilization of grape waste residue, achieve significant economic and social benefits, be good for the environment, and have a wide range of raw material sources Effect

Active Publication Date: 2013-05-01
QINGDAO PENGYUAN KANGHUA NATURAL PROD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

For example, many wine companies have not fully utilized the grape marc left after fermentation

Method used

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  • Grape skin red pigment preparation method

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Embodiment Construction

[0026] Such as figure 1 Shown is the flow chart of the manufacturing method of grape skin red pigment described in the embodiment of the present invention. The invention discloses a method for preparing grape skin red pigment by using natural plant grape skin as the main raw material, comprising the following steps: grape skin→acid water extraction→enzyme preparation treatment→filtering→resin adsorption→ethanol elution→decompression concentration →alcohol precipitation and refining→concentration and drying→finished product. Grape skin red pigment is a pure natural pigment resource, which can make up for the shortage of existing natural pigments and meet the needs of the wine manufacturing industry. The invention has advanced technology and is a pure natural product. In the production process, there is no discharge of three wastes, no pollution, and is good for the environment; the source of raw materials is extensive, the price is low, and it can be popularized and applied n...

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Abstract

The invention discloses a grape skin red pigment preparation method using natural grape skin as the main raw material. The method comprises the following steps of: a. extraction with acid liquid: putting fresh grape skin residue, after being cleaned, into an extraction tank, spraying and extracting with acid liquid, and collecting extraction liquid of the grape skin red pigment; b. processing with enzyme preparation: adjusting the pH value of the collected extraction liquid, adding 0.01 to 0.3 thousandth of enzyme preparation into the extraction liquid the pH value of which is adjusted, mixing evenly, standing for 0.5 to 5 hours, precisely filtrating, and obtaining fine grape skin red pigment water solution; c. absorption and separation; d. concentration and refining; and e. spray drying and obtaining red powder product. The invention adopts advanced technique and the product is purely natural. During the production process, no waste water, waste gas or waste residue are discharged, therefore, the method is pollution free and good for the environment. Raw materials have wide supply sources and the price is low, therefore, the method, having significant economic and social benefits, can be widely promoted and applied across the country.

Description

technical field [0001] The invention relates to a method for producing a pigment by using natural plants as raw materials, in particular to a method for producing grape skin red pigment by using natural plant grape skins as the main raw material. Background technique [0002] With the country's strict requirements on the use of pigments in food, natural pigments will replace synthetic pigments. People's awareness of natural grape red pigments in the wine industry is also increasing. Extracting pigments from grape skins to adjust the color of wine can be said to be the most economical and environmentally friendly method. But at present, the grape skin pigment in our country cannot meet the needs of major wine companies, and domestic companies have to use black rice red pigment and cabbage red pigment to adjust the color of wine. And this has brought many adverse effects to it again, as: turbidity, precipitation, smell etc., have influenced the quality of wine and increased ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00A23L1/275A23L5/43
Inventor 展鹏远
Owner QINGDAO PENGYUAN KANGHUA NATURAL PROD
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