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Production method for preparing low-pasting-temperature starch in cold water

A production method and technology of gelatinization temperature, which are applied in food preparation, food science, application, etc., to achieve the effects of short production cycle, high product stability, and reduced fuel consumption

Inactive Publication Date: 2011-02-16
广西农垦明阳生化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no research on the process of preparing diesterized starch in cold water medium, and there is no "esterification-esterification" diesterization process route, which is successfully prepared in cold water at 20-30°C and the gelatinization temperature is lower than 50°C. The report of modified starch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In the reaction tank, the tapioca starch slurry has a depth of 1000mm, a slurry concentration of 35-40%, and a starch content of 15 tons. Adjust the temperature of the starch slurry to 25°C, add 150kg of sodium sulfate and 450kg of sodium chloride to the cassava starch slurry, stir for 20 minutes, add 3% sodium hydroxide aqueous solution to adjust the pH of the slurry to 9-10, activate the reaction for 20 minutes, and control the slurry The temperature is 25°C-30°C, add 450kg salicylic acid, 3% sodium hydroxide aqueous solution to keep the pH value of 9-10, and react for 30-40 minutes. When the pH value no longer changes, reduce the temperature by 20-25°C and adjust The pH value is 8.0-9.5, slowly add 225kg of succinic anhydride, and at the same time add 3% sodium hydroxide aqueous solution to adjust the slurry to maintain the pH value of 8.0-9.5, and keep the temperature of the starch slurry at 20-25°C during the process. When the pH value no longer changes, the reactio...

Embodiment 2

[0035] Corn starch slurry, the depth is 1000mm, the slurry concentration is 35-40%, and the starch content is 15 tons. Adjust the temperature of the starch slurry to 25°C, add 300kg of sodium sulfate and 450kg of sodium chloride to the corn starch slurry, stir for 20 minutes, add 4% sodium hydroxide aqueous solution to adjust the pH of the slurry to 9-10, activate the reaction for 20 minutes, and control the slurry The temperature is 25°C-30°C, add 225kg of salicylic acid, add 4% sodium hydroxide aqueous solution to adjust the slurry to maintain the pH value of 9-10, and react for 30-40 minutes. When the pH value no longer changes, reduce the temperature by 20-25°C. Adjust the pH value to 8.0-9.5, slowly add 375kg of succinic anhydride, and at the same time add 4% sodium hydroxide aqueous solution to adjust the slurry to maintain the pH value of 8.5-9.3, and keep the temperature of the starch slurry at 20-25°C during the process. When the pH value no longer changes , react for...

Embodiment 3

[0037] Tapioca starch slurry, the depth is 950mm, the slurry concentration is 35-40%, and the starch content is 15 tons. Adjust the temperature of the starch slurry to 25°C, add 300kg of sodium sulfate and 600kg of sodium chloride to the cassava starch slurry, stir for 20 minutes, add 5% sodium hydroxide aqueous solution to adjust the pH of the slurry to 9-10, activate the reaction for 20 minutes, and control the slurry The temperature is 25°C-30°C, add 450kg succinic acid, 5% sodium hydroxide aqueous solution to keep the pH value of 9-10, and react for 30-40 minutes. When the pH value no longer changes, reduce the temperature by 20-25°C and adjust The pH value is 8.0-9.5, slowly add 225kg of acetic anhydride, and at the same time add 5% sodium hydroxide aqueous solution to adjust the slurry to maintain the pH value of 8.0-9.5, and keep the temperature of the starch slurry at 20-25°C during the process. When the pH value no longer changes, react for 30 -50 minutes, use hydroch...

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Abstract

The invention discloses a production method for preparing low-pasting-temperature starch in cold water. Starch pulp is used as an initial raw material for preparation in the cold water at 20 and 30 DEG C, and an esterification-esterification wet method double-esterification modification process is adopted for production so that the modified starch with low pasting temperature and good properties such as higher binding power, better film forming performance, better viscoelasticity, and the like can be achieved. The invention ensures that the modified starch products generate new processing applicability by utilizing the compounding of diversified compound modification and colloidal substances and has the better advantages of oil consumption reduction, reconstituted time prolonging, elasticity improvement, boiling and soaking resistance improvement, no soap turbidity, and the like when the production method is applied to the production of food, particularly the instant noodles. At the same time, when the production method is applied to papermaking coating and textile industry, the production energy consumption can be obviously reduced. The production method of the invention is simple and applicable to enterprises with modified starch production conditions, adopts the fully wet method process route for production, and has no special requirements on production equipment.

Description

technical field [0001] The invention relates to a modified starch and a preparation method thereof. It is mainly used as a food additive, papermaking coating and preparation method of modified starch added to textiles. Background technique [0002] With the development of food, papermaking, textile and daily-use industries, my country has realized the industrial production of modified starch since the 1980s. Modified starch products include: oxidized starch, acid-thinned starch, acetate starch, phosphate starch, Linked starch, carboxymethyl starch, hydroxypropyl starch, cationic starch, pregelatinized starch, etc., in the production and application process, when the modified starch with a lower gelatinization temperature is gelatinized under the same conditions, the gelatinization temperature is higher than the gelatinization temperature. High-quality modified starch absorbs less heat to reach the gelatinized state, so it can achieve the purpose of saving energy and reducing ...

Claims

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Application Information

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IPC IPC(8): D21H19/00C08B31/04A23L1/0522D06M15/11A23L29/219
Inventor 陈江枫冯琳潘瑞坚梁著棋曾成伟朱其虎玉琼广
Owner 广西农垦明阳生化有限公司
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