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Resistant dextrin synthesis technology

A resistant dextrin and process technology, applied in the field of starch deep processing, can solve the problems of resistant dextrin, such as poor taste, uneven reaction, easy carbonization of starch, etc., and achieve the effects of low glycemic index, short reaction time and high conversion rate

Inactive Publication Date: 2016-10-26
FUTASTE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In all these methods, the source of raw starch is relatively single, and whether it is acid hydrolysis or enzymatic hydrolysis in the reaction process, the requirements for reaction conditions are relatively strict, especially for the reaction conditions of enzymes, because the activity of enzymes is easily affected by various environmental conditions. Influence, such as storage time, temperature, etc., lead to problems such as uneven reaction, long reaction time, easy carbonization of starch, etc., and the use of biological enzyme preparations for treatment will lead to complicated processes in the subsequent treatment process, and the taste of the obtained resistant dextrin is relatively poor. Poor, high cost and other disadvantages

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 40kg of maltodextrin, 60kg of glucose and 0.5kg of citric acid respectively, mix them uniformly in a mixer, stir and react for 2 hours under the conditions of a negative pressure of 0.05Mpa and a temperature of 180°C to obtain a solid The crude product is dissolved in hot water at 50°C to obtain a solution with a mass concentration of 5%, and the pH value is adjusted to 3. After decolorization by activated carbon and ion exchange, the light transmission of the ion exchange liquid is 95%, and then enters the spray dryer , was spray-dried under the condition that the inlet temperature was 150° C. and the outlet temperature was 60° C. to obtain 15 kg of crude resistant dextrin.

[0021] After testing, the content of resistant dextrin in the crude product was 75%.

Embodiment 2

[0023] Take respectively 24.5kg of maltodextrin, 74.5kg of glucose and 1kg of citric acid in a mixer, mix them uniformly in a mixer, stir and react for 3 hours at a negative pressure of 0.07Mpa and a temperature of 150°C to obtain a solid crude The product is dissolved in hot water at 70°C to obtain a solution with a mass concentration of 7%, and the pH value is adjusted to 4. After decolorization by activated carbon and ion exchange, the light transmission of the ion exchange liquid is 97%, and then enters the spray dryer. Spray-dry under the condition that the inlet temperature is 160°C and the outlet temperature is 70°C to obtain 20kg of crude resistant dextrin.

[0024] After testing, the content of resistant dextrin in the crude product was 80%.

Embodiment 3

[0026] Take 20kg of maltodextrin, 80kg of glucose and 3kg of citric acid respectively, mix them uniformly in a mixer, stir and react for 5 hours at a negative pressure of 0.10Mpa and a temperature of 130°C to obtain a solid crude product, Dissolve in hot water at 90°C to obtain a solution with a mass concentration of 10%, and adjust the pH value to 5. After decolorization by activated carbon and ion exchange, the ion exchange liquid has a light transmittance of 99%, and then enters the spray dryer. The temperature was 200° C., and the outlet temperature was 90° C. by spray drying to obtain 19 kg of crude resistant dextrin.

[0027] After testing, the content of resistant dextrin in the crude product was 70%.

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PUM

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Abstract

The invention discloses a resistant dextrin synthesis technology, which comprises the following steps: 1) using maltodextrin as a raw material, respectively adding glucose and citric acid, and uniformly stirring to obtain a maltodextrin mixture; 2) uniformly stirring the above maltodextrin mixture at the negative pressure of 0.05-0.1 MPa and at the temperature of 130-180 DEG C, and reacting for 2-5 h to prepare a solid crude product; 3) dissolving the above solid crude product by the use of 50-90 DEG C of hot water to obtain a solution with the mass concentration of 5-10%, and adjusting pH of the solution to 3-5; and 4) carrying out activated carbon decoloration on the solution obtained in the step (3), carrying out ion-exchange to obtain an ion exchange liquid, and spray-drying the ion exchange liquid by a spray dryer to finally obtain a yellowish powder product. In comparison with the prior art, the method breaks the tradition that starch is used as a single raw material and the synthesis field of resistant dextrin is broadened. In addition, the method also has advantages of low energy consumption, high conversion rate, short reaction time, simple process, low cost and the like.

Description

technical field [0001] The invention relates to the field of starch deep processing, in particular to a process for synthesizing resistant dextrin. Background technique [0002] Starch is an important raw material for food and industrial production, and its deep-processing products are subject to [0003] People's widespread favor and application. Resistant dextrin, an important product of starch deep processing, is a low-calorie dextran, which belongs to low-molecular soluble dietary fiber. Dietary fiber is known as the seventh largest nutrient necessary for human health, and is a kind of modern food industry. Important raw materials. Resistant dextrin is a kind of "low viscosity water-soluble dietary fiber", low viscosity, low calorie, low sweetness, high solubility and good processing stability. Because it contains indigestible components that resist the action of human digestive enzymes (amylase, glucoamylase, etc.), it will not be digested and absorbed in the digesti...

Claims

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Application Information

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IPC IPC(8): C08B30/18
CPCC08B30/18
Inventor 孙鲁邱学良董铭付丽云张荣立
Owner FUTASTE PHARM CO LTD