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High amylase corn starch paste and preparation method thereof

A corn starch and high amylose technology, which is applied in the field of starch industrial processing, can solve the problems of weak structure and the quality of high amylose corn starch paste, and achieves the effects of convenient operation, simple and reliable preparation method, and cost saving of gelatinization

Inactive Publication Date: 2013-02-13
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The presence of granule residues negatively affects the quality of high amylose corn starch pastes
High amylose corn starch paste has a relatively weak structure due to the destruction of granule residues during lye treatment

Method used

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  • High amylase corn starch paste and preparation method thereof
  • High amylase corn starch paste and preparation method thereof
  • High amylase corn starch paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Alkali treatment of starch suspension

[0030] Mix 4 g of high-amylose corn starch (dry basis) and 30 ml of deionized water in a beaker to obtain a high-amylose corn starch aqueous suspension, and gently stir to wet the starch granules, wherein the mass percentage of high-amylose corn starch is 12%. Then add 40ml of aqueous sodium hydroxide solution (concentration 1mol / L) into the high amylose corn starch aqueous suspension, and stir while adding to make the aqueous sodium hydroxide solution and the high amylose corn starch particles fully contact. The above-mentioned processes are all carried out at room temperature, and the temperatures of deionized water and lye are both at room temperature.

[0031] (2) Preparation of high amylose corn starch paste

[0032] Stir the mixture of high-amylose cornstarch and lye obtained in step (1) to fully gelatinize the high-amylose cornstarch at a stirring rate of 450rpm for 20min and a stirring blade radius of 2.5cm. After st...

Embodiment 2

[0042] (1) Alkali treatment of starch suspension

[0043] Mix 4 g of high-amylose corn starch (dry basis) and 30 ml of deionized water in a beaker to obtain an aqueous suspension of high-amylose corn starch, and gently stir to moisten the starch granules, wherein the mass percentage of high-amylose corn starch is 12%. Then add 40ml of sodium hydroxide aqueous solution (concentration 1mol / L) into the high amylose corn starch aqueous suspension, and stir while adding to make the sodium hydroxide aqueous solution and the high amylose corn starch granules fully contact. The above-mentioned processes are all carried out at room temperature, and the temperatures of deionized water and lye are both at room temperature.

[0044] (2) Preparation of high amylose corn starch paste

[0045] Stir the mixture of high-amylose cornstarch and lye obtained in step (1) to fully gelatinize the high-amylose cornstarch at a stirring rate of 450rpm for 20min and a stirring blade radius of 2.5cm. A...

Embodiment 3

[0055] (1) Alkali treatment of starch suspension

[0056] Mix 4 g of high-amylose corn starch (dry basis) and 30 ml of deionized water in a beaker to obtain a high-amylose corn starch aqueous suspension, and gently stir to wet the starch granules, wherein the mass percentage of high-amylose corn starch is 12%. Then add 40ml of sodium hydroxide solution (concentration 1mol / L) into the starch suspension obtained above, and stir while adding to make the sodium hydroxide solution fully contact with the high-amylose corn starch granules. The above-mentioned processes are all carried out at room temperature, and the temperatures of deionized water and lye are both at room temperature.

[0057] (2) Preparation of high amylose corn starch paste

[0058] Stir the mixture of high-amylose cornstarch and lye obtained in step (1) to fully gelatinize the high-amylose cornstarch at a stirring rate of 450rpm for 20min and a stirring blade radius of 2.5cm. After the stirring, the pH value wa...

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Abstract

The invention discloses high amylase corn starch paste and a preparation method thereof. The method comprises the following steps that (1) high amylase corn starch is added into water to obtain high amylase corn starch water suspension; a sodium hydroxide water solution is added into the high amylase corn starch water suspension to be uniformly stirred to obtain a mixed solution; (2) the mixed solution is stirred; then the pH value of the stirred mixed solution is regulated to be neutral, and the high amylase corn starch paste is obtained; and (3) the high amylase corn starch paste is subjected to high-pressure homogenizing processing. The preparation method provided by the invention is simple and reliable, is convenient to operate and does not pollute environment, and the pasting cost of the high amylase corn starch is greatly saved. The high amylase corn starch paste has good liquidity, high transparency, uniform paste structure and no residual starch granules, and the starch paste viscosity of high amylase corn can be regulated through the selection of homogeneous pressure.

Description

technical field [0001] The invention relates to a high-amylose corn starch paste and a preparation method thereof, belonging to the technical field of starch industrial processing. Background technique [0002] Starch is one of the most abundant biological resources in nature. As an important renewable substance, starch has been widely used in food, paper, textile, pharmaceutical, petroleum and other industries. For example, starches are used in the food industry as thickeners and gelling agents, in the textile and paper industries as sizing agents, and in the pharmaceutical industry as fillers, dispersants, and pharmaceutical diluents. [0003] The rheological properties of starch paste are very important in the industrial production process. In food processing, the rheological properties of starch paste can affect the processing process and optimize the applicability, stability and taste characteristics of the product; in the textile industry, starch paste can be used as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B30/00C08B30/20
Inventor 李栋王宝汪立君吴敏刘嫣红
Owner CHINA AGRI UNIV
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