Method for preparing caramel pigment from molasses

A pigment and flocculant technology, applied in chemical instruments and methods, azo dyes, organic dyes, etc., can solve the problems of carbonized product solution, precipitation, etc., to improve the recovery and utilization rate of waste honey, less investment, and simple operation. Effect

Inactive Publication Date: 2013-03-20
GUANGXI CHONGZUO XIANGGUI SUGAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But pay attention to the following two problems: First, the waste honey contains a lot of colloid and ash, if the waste honey is not pretreated to remove the colloid and ash, it will easily cause carbonization during the cooking process and precipitation of the product solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 50% phosphoric acid solution by weight to 500Kg waste honey to adjust the pH to 2.1, add 8ppm polyacrylamide after heating to boiling, precipitate impurities, let it stand for 3 hours, take the supernatant and filter it through a 120-mesh filter bag, and add the filtrate to acid hydrolysis In the tank, heat the filtrate to 90°C, stir for 1.5 hours to obtain acidolysis solution, filter it with a filter bag, add the filtrate to the honey cooking tank, add the reconstituted milk of lime under stirring, and make the mixed solution pH = 8. Turn on the steam for cooking, the steam temperature is 160°C, stir during the cooking process until the solution concentration reaches 88-92°Bx, filter it through a curved sieve and store it in a honey storage box to obtain caramel pigment, which is used for the preparation of sugar products coloring.

Embodiment 2

[0027] Add 37% hydrochloric acid solution by weight to 500Kg waste honey to adjust the pH to 2.5, add 3ppm polyacrylamide and 150ppm polyaluminum chloride after heating to boiling, precipitate impurities, let stand for 2h, take the supernatant and filter through 120 mesh Bag filter, add the filtrate to the acidolysis box, heat the filtrate to 50°C, stir for 1.5 hours to obtain the acidolysis solution, filter it with a filter bag, add the filtrate to the honey cooking box, add the reconstituted milk of lime under stirring , make the mixed solution pH=10, cook with steam, the steam temperature is 180°C, stir during the cooking process, until the solution concentration reaches 88-92°Bx, filter through a curved sieve and store in a honey storage box to obtain coke Sugar pigment, used for the coloring of sugar.

Embodiment 3

[0029] Add 50% by weight phosphoric acid solution to 500Kg waste honey to adjust the pH to 2.0, add 5ppm polyacrylamide and 150ppm polyferric sulfate after heating to boiling, precipitate impurities, let it stand for 1h, take the supernatant and filter it through a 120-mesh filter bag , put the filtrate into the acidolysis box, heat the filtrate to 80°C, stir for 1.5 hours to obtain the acidolysis solution, filter it with a filter bag, add the filtrate to the honey cooking box, add the sterilized milk of lime under stirring, and put The mixed solution is adjusted to pH=9, boiled with steam, the steam temperature is 120°C, stirred during the cooking process until the solution concentration reaches 88-92°Bx, filtered through a curved sieve and stored in a honey storage box to obtain caramel pigment , for the coloring of confectionery.

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PUM

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Abstract

The invention discloses a method for preparing caramel pigment from molasses. The method is characterized by comprising the following steps of: adding hydrochloric acid or phosphoric acid solution to the molasses prepared by the conventional process to adjust the pH of the molasses to 2.0-2.5, adding flocculant to the molasses for depositing impurities after the molasses is heated to be boiled, heating and stirring supernate for 1h-1.5h to prepare acidolysis solution, filtering the acidolysis solution by a filter bag, adding slaked lime milk to the filtered acidolysis solution for mixing, adjusting the pH of mixed solution to 8-10, heating and concentrating the mixed solution to 88-92 degrees Bx, filtering the mixed solution by a curved sieve, and storing the mixed solution in a molasses storage. The caramel pigment can be used for coloring a sugar product. The investment of the preparation method of the color matching agent is less, equipment is simple, the color and luster of the prepared color matching agent are deep, the color matching agent does not cause turbidity and sedimentation after being diluted, and the caramel pigment is used for coloring the sugar product and is capable of improving the appearance of the sugar product and enhancing the recovery ratio of sugar and the use ratio of the molasses.

Description

technical field [0001] The invention relates to a method for preparing caramel pigment by using waste honey, which belongs to the field of sugarcane deep processing. Background technique [0002] Sugarcane is the main agricultural economic crop in southern my country, and has a long history of cultivation in my country. Waste sugarcane honey is the by-product after sugarcane extrusion, which contains about 35% sucrose by weight, reducing sugar about 11%, and other impurities such as colloid and inorganic non-sugar. Extraction of sucrose from cane molasses is uneconomical due to the nectar-making effect of inorganic non-sugar components. At present, sugarcane molasses is mainly used for alcohol fermentation and yeast cultivation. Sugar cane molasses contains more sugar, so it is an ideal natural raw material for the preparation of high-quality caramel coloring. [0003] According to different catalysts, the preparation methods of caramel pigment can be divided into common...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00
Inventor 韦洁云刁晓陈书勤廖福真
Owner GUANGXI CHONGZUO XIANGGUI SUGAR
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