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A preparing process of crosslinked starch by adding succinaldehyde

A preparation process and cross-linked starch technology, which is applied in the field of starch chemical industry, can solve the problems of poor resistance to mechanical damage, weakened anti-swelling ability, structural damage, etc., and achieve the effect of simple modification process and easy operation

Inactive Publication Date: 2016-03-16
廖芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after starch granules form porous starch under the action of raw amylase, its structure suffers a certain degree of damage, which is manifested as poor resistance to mechanical damage and weakened anti-swelling ability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First take 5g of natural starch and pour it into a container, then pour 100ml of distilled water, heat it to 60°C in a water bath, and keep stirring and mixing to make the solution fully gelatinized; after gelatinization, cool the solution system to room temperature, and then add 1mL of twelve Alkyl sodium sulfate solution, stir to dissolve evenly, then heat the solution system, when the temperature reaches 40°C, then add 0.1g of glucoamylase, and keep stirring, add 0.05mL succinic dialdehyde after full reaction, after full reaction , and then pour the solution into the acetone solution, filter and collect the precipitate, then pour the precipitate into clear water, filter again, collect the filtered product, place it for vacuum drying, and obtain the cross-linked starch.

Embodiment 2

[0025] First take 10g of natural starch and pour it into a container, then pour 200ml of distilled water, heat it to 65°C in a water bath, and keep stirring and mixing to make the solution fully gelatinized; after gelatinization, cool the solution system to room temperature, then add 2mL of twelve Alkyl sodium sulfate solution, stir to dissolve evenly, then heat the solution system, when the temperature reaches 45°C, then add 0.2g of glucoamylase, and keep stirring, add 0.1mL succinic dialdehyde after full reaction, after full reaction , and then pour the solution into the acetone solution, filter and collect the precipitate, then pour the precipitate into clear water, filter again, collect the filtered product, place it for vacuum drying, and obtain the cross-linked starch.

Embodiment 3

[0027] First take 20g of natural starch and pour it into a container, then pour 300ml of distilled water, heat it to 70°C in a water bath, and keep stirring and mixing to make the solution fully gelatinized; after gelatinization, cool the solution system to room temperature, and then add 4mL of twelve Alkyl sodium sulfate solution, stir to dissolve evenly, then heat the solution system, when the temperature reaches 50°C, then add 0.4g of glucoamylase, and keep stirring, add 0.2mL succinic dialdehyde after full reaction, after full reaction , and then pour the solution into the acetone solution, filter and collect the precipitate, then pour the precipitate into clear water, filter again, collect the filtered product, place it for vacuum drying, and obtain the cross-linked starch.

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PUM

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Abstract

A preparing process of crosslinked starch by adding succinaldehyde is disclosed. The process adopts the succinaldehyde as a crosslinking agent. Hydroxyl groups in different starch molecules are crosslinked during preparation of porous starch so that the starch molecules are in a screen type structure, thus overcoming the disadvantage of poor mechanical damage resistance. The process is short in procedure and simple in operation and has a good application prospect.

Description

technical field [0001] The invention relates to a preparation process of modified starch, in particular to a preparation process for chemically modifying porous starch by adding a crosslinking agent, belonging to the field of starch chemical industry. Background technique [0002] Porous starch is a kind of modified starch. Porosity produces a large specific surface area. Compared with other adsorbents, porous starch not only has good adsorption performance, but also has the characteristics of biodegradability, simple production process, and wide application. In the process of preparing porous starch, its pore number, pore diameter and pore depth can be controlled. It can be used as an efficient, non-toxic and safe adsorbent, and is widely used in food, medicine and health, agriculture, papermaking, printing, cosmetics, Detergent, adhesive and other industries. [0003] At present, there are mainly the following methods to modify native starch to prepare porous starch: one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/00
Inventor 廖芳
Owner 廖芳