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Method for reducing sulfur dioxide content in ammonium sulfite method caramel color

An ammonium sulfite method and sulfur dioxide technology, which is applied in the fields of food science, food ingredients, applications, etc., can solve the problems of high sulfur dioxide content, high safety risk of caramel-colored food by the ammonium sulfite method, affecting product promotion and application, etc., to improve safety. The effect of improving performance and product quality

Pending Publication Date: 2021-09-07
QIANHE CONDIMENT & FOOD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Ammonium sulfite method caramel color Because ammonium (ammonia) compounds and sulfites are used as catalysts in the production process, there will be ammonium salts (NH 4 + ) and sulfur dioxide (SO 2 ) residues, and ammonium salts will produce 4-methylimidazole, and sulfur dioxide is a typical allergen, so the food safety risk of caramel color by ammonium sulfite method is relatively large, which affects the further promotion and application of products
[0005] At present, there are high requirements on the content of sulfur dioxide in soy sauce at home and abroad. If soy sauce manufacturers use sulfite caramel color in the production process of soy sauce, although the coloring requirements of the product are met, it will also lead to sulfur dioxide in soy sauce products. The content is too high to make the product reach the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation of zinc oxide desulfurizer: accurately weigh zinc oxide (ZnO) 9.2kg, copper oxide (CuO) 0.2kg, aluminum oxide (AL 2 o 3 ) 0.2kg, magnesium oxide (MgO) 0.2kg, manganese oxide (MnO 2 ) 0.2kg, fully mixed in a container, then add 0.5kg of maltodextrin, 0.1kg of xanthan gum, and finally add 1.0kg of tap water, fully mix and stir until it becomes a paste for use.

[0036] S1: Select caramel color A by ammonium sulfite method, measure 1000kg of caramel color A (on a dry basis, the actual liquid weight is 1366kg) into the reaction tank, start stirring, add 450kg of tap water to adjust the dry basis to 55.5%, and use food grade hydrochloric acid to adjust the pH value to 2.45, then add ozone 30kg (3.0%), ferric chloride 4.0kg (0.4%), heat up to 95 degrees Celsius, keep stirring at 95 degrees Celsius for 40 minutes, cool to below 60 degrees Celsius and pump into a settling tank for 48 Take the supernatant a1 after 4 hours. A total of 1720kg of clear liquid and...

Embodiment 2

[0041] The preparation of zinc oxide desulfurizer is the same as in Example 1.

[0042]S1: Select caramel color B by ammonium sulfite method, measure 1000kg of caramel color B (on a dry basis, the actual liquid weight is 1667kg) into the reaction tank, start stirring, add 315kg of tap water to adjust the dry basis to 50.5%, adjust the pH with food grade hydrochloric acid value to 2.08, then add ozone 10kg (1.0%), iron sulfate 2.0kg (0.2%), heat up to 95 degrees Celsius, keep stirring at 95 degrees Celsius for 40 minutes, cool to below 60 degrees Celsius, pump into the settling tank and let it settle for 48 hours Then take the supernatant b1. A total of 1840kg of clear liquid and 123kg of sediment were obtained.

[0043] S2: Adjust the pH value of 1840kg of clear liquid to 4.5 with food grade caustic soda, add 5.0kg of zinc oxide desulfurizer, and stir. Heating to 80 degrees Celsius, maintaining the temperature of 80 degrees Celsius and stirring for 120 minutes, cooling to be...

Embodiment 3

[0047] The preparation of zinc oxide desulfurizer is the same as in Example 1.

[0048] S1: Select caramel color C by the ammonium sulfite method, measure 1000kg of caramel color C (on a dry basis, the actual liquid weight is 1818kg) into the reaction tank, start stirring, no tap water is added, the dry basis is 55.5%, and hydrochloric acid is not added. The pH value is 3.05, then add ozone 50kg (5.0%), ferric chloride 5.0kg (0.5%), heat up to 95 degrees Celsius, keep stirring at 95 degrees Celsius for 40 minutes, cool to below 60 degrees Celsius, pump into the settling tank and let it settle After 48 hours, the supernatant c1 was taken. A total of 1680kg of clear liquid and 185kg of sediment were obtained.

[0049] S2: Adjust the pH value of 1680kg of clear liquid to 4.02 with food grade caustic soda, add 5.0kg of zinc oxide desulfurizer, and stir. Heating to 80 degrees Celsius, maintaining the temperature of 80 degrees Celsius and stirring for 120 minutes, cooling to below...

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PUM

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Abstract

The invention discloses a method for reducing sulfur dioxide content in ammonium sulfite method caramel color. The method comprises the following steps of: S1, adding water into ammonium sulfite method caramel color to be treated in a reaction kettle to adjust dry basis, then adjusting the pH value to 2.0-3.0, then introducing ozone, adding iron salt for heating reaction, heating the material to 95-100 DEG C during the heating reaction, and standing to obtain primary supernatant; and S2, adjusting the pH value of the primary supernatant to 4.0-6.0, then adding a zinc oxide desulfurizer, heating the material to 80 DEG C for heating reaction, standing to obtain secondary supernatant, and concentrating the secondary supernatant to obtain the ammonium sulfite method caramel color, wherein the zinc oxide desulfurizer comprises the following components: zinc oxide, copper oxide, aluminum oxide, magnesium oxide, manganese oxide, maltodextrin and xanthan gum. The method disclosed by the invention can reduce the sulfur dioxide content in a caramel color product from about 1000-2000ppm to within 10ppm, and improve the safety of caramel color food application.

Description

technical field [0001] The invention relates to the technical field of food additive processing, in particular to a method for reducing sulfur dioxide content in ammonium sulfite caramel color. Background technique [0002] Caramel color, also known as caramel, commonly known as caramel color, is a natural colorant. A reddish-brown or dark-brown complex mixture formed by incomplete decomposition and dehydration polymerization of caramel-colored carbohydrates at high temperature. Because caramel pigment has the characteristics of good water solubility, strong coloring power, stable properties, safety and non-toxicity, it is widely used in the food industry, such as soy sauce, vinegar, instant noodles, cola and baked foods are added in different amounts caramel color. [0003] Ammonium sulfite caramel color is obtained by heating at high temperature with or without acid or alkali in the presence of sulfite and ammonium compounds. Due to the simple production process of sulp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L5/47A23L5/20
CPCA23L5/47A23L5/20A23L5/276A23V2002/00A23V2250/1642A23V2250/1588A23V2250/1564A23V2250/161A23V2250/1612A23V2250/5114A23V2250/5086A23V2250/128
Inventor 刘明宣徐义胡述勇黄金龙郑小明徐加平史航宇
Owner QIANHE CONDIMENT & FOOD CO LTD
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