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Method for preparing caramel pigment

A technology of caramel pigment and extraction method, which is applied in the field of natural source pigments, can solve the problems of no introduction of extraction methods, etc., and achieve the effect of simple extraction method, low technical requirements, and easy availability of raw materials

Inactive Publication Date: 2005-03-16
兰州金陵石化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In foreign materials, it was only reported in the "Food Additives Handbook" published by the Chemical Industry Press in 1989, with the unified ISBN 040507, that food pigments were extracted from purple corn produced in Central and South America such as Peru, but no specific extraction method was introduced.

Method used

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Examples

Experimental program
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Embodiment Construction

[0009] best practice

[0010] 1. Add 100 grams of corn, sorghum, millet and other crops, add 200 ml of pure water, add 3 ml of edible hydrochloric acid, heat, reflux and hydrolyze for 1.5-2 hours, after the hydrolysis is completed, add food grade surrounding alkali to adjust the pH to 5-8. Use pressure filtration or centrifugal filtration, concentrate the filtrate, adjust the pH to 8, add 10% ammonia water catalyst in the amount of concentrated liquid, heat and coke, the coking temperature is 120 ° C, and the coking time is 4 hours. After coking is completed, the coking liquid is concentrated to Liquid commercial grade, or further concentrated to solid commercial grade.

[0011] 2. Add 300 grams of fresh potato or potato starch, add 150 ml or 500 ml of pure water, add 5 ml of food-grade hydrochloric acid, heat, reflux and hydrolyze for 1.5-2 hours, after the hydrolysis is completed, add food-grade caustic soda to adjust the pH to 5-8 . Use pressure fil...

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PUM

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Abstract

The invention discloses a method for preparing caramel pigment mainly used as the liquor color mixing agent and food additive, the preparation process comprises the steps of disintegrating, filtering, concentration. The method can not only meet the color ratio and stability requirement for the cane sugar production, but also preserve the eighteen amino acids and part of the trace elements in the zein.

Description

technical field [0001] The invention relates to a preparation method of caramel pigment, which belongs to the technical field of natural source pigment prepared from natural raw materials, and is mainly used to replace synthetic colorants, and to be used as food and cosmetic additives and beverage toners. Background technique [0002] In the prior art, there are nearly 60 kinds of food pigments commonly used at present, of which only more than 20 are natural pigments, and the remaining nearly 40 are artificial or semi-synthetic pigments. After reviewing the patent bulletins that have been published in China so far, it is found that there are about thirteen natural pigment extraction technologies that have been applied for patents in my country, but they are all for the extraction of other pigments. For example, the application number 90101859.7 uses tree flowers as raw materials For the production of natural edible red pigment, application number 9110157...

Claims

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Application Information

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IPC IPC(8): A23L5/40C09B61/00
Inventor 王国强文奋武王永祥
Owner 兰州金陵石化有限责任公司
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