Preparation method of corn hydroxy propyl distarch glyceride

A technology of hydroxypropyl digitrin glycerin and corn starch, which is applied in the field of preparation of modified starch, can solve problems such as backwardness and backward processing technology, and achieve the effects of wide source of raw materials, cost control, and easy regeneration

Inactive Publication Date: 2007-01-31
四平帝达变性淀粉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the backwardness of the domestic technical level, some types of modified starches are monopolized by large international companies. For example, this kind of hydroxypropyl distarch glyceryl ether has become a blank in this industry due to the backward processing technology of domestic modified starch processing enterprises.

Method used

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  • Preparation method of corn hydroxy propyl distarch glyceride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, add 100 kilograms of cornstarch and 10 kilograms of sodium sulfate to 180 kilograms of water in the reactor to adjust the starch slurry of 20-23Be, stir continuously, and add sodium hydroxide with a mass concentration of 3-3.8% in the kettle to adjust the pH value to 11.5, then add 6 kg of propylene oxide and heat up to 49°C for 14 hours. Add 10ml of epichlorohydrin to the above-mentioned etherified starch slurry, and continue to react for 19 hours. After the above-mentioned crosslinking reaction is completed, adjust the pH value to 6.0 with hydrochloric acid with a mass concentration of 9%, and add 200 kg of water to the kettle. Washing, sedimentation, and then washing and sedimentation in the same way to remove impurities (sodium sulfate, sodium chloride or other chemical residues) to obtain finished products.

Embodiment 2

[0023] The steps are the same as in Example 1, except that the pH value of the etherification reaction process is maintained at 11.0.

Embodiment 3

[0025] The steps are the same as in Example 1, except that the pH value of the etherification reaction process is maintained at 12.0.

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Abstract

The present invention relates to a preparation method of corn hydroxypropyl distarch glyceryl ether. It is made up by using water as medium and using corn starch, propylene epoxide, epoxy chloropropane and sodium hydroxide as raw material through the processes of mixing paste, etherification, cross-linking, neutralization, washing, drying, sieving and packaging.

Description

technical field [0001] The invention relates to a preparation method of modified starch, in particular to a preparation method of corn hydroxypropyl distarch glyceryl ether. Background technique [0002] Modified starch began to develop in the middle of the nineteenth century, and has a history of 150 years. In the past 30 years, the research, production and application of modified starch have entered a stage of vigorous development, and the variety of products has continued to increase. In recent years, the modified starches of international large groups with more advanced technology have entered the Chinese market one after another, which has driven the understanding and demand of the domestic food industry for modified starches. However, due to the backwardness of the domestic technical level, some types of modified starches are monopolized by large international companies. For example, this kind of hydroxypropyl distarch glyceryl ether has become a blank in this industry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/08
Inventor 王三平王云志曾蒲春
Owner 四平帝达变性淀粉有限公司
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