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Method for using corn starch to prepare resistant starch

A technology of corn starch and resistant starch, applied in the field of preparing resistant starch and using corn starch to prepare resistant starch, can solve the problem of low purity of resistant starch

Inactive Publication Date: 2013-01-16
庆阳中盛必优特生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect of low purity of the current method for preparing resistant starch, and disclose a method for preparing resistant starch using corn starch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] a. Slurry,

[0017] a.1 Take 1000g of cornstarch, the mixing concentration is 17Be',

[0018] a.2 adjust the pH value to 5.0,

[0019] a.3 Add 0.4L / t starch of high temperature resistant α-amylase;

[0020] b. Gelatinization

[0021] First preheat to 100°C, then spray gelatinization, the temperature inside the injector is controlled at 120°C,

[0022] c. After the vacuum flash cooling system, the temperature drops from 95°C to 85°C, the iodine test shows its true color, and the gelatinization is completed;

[0023] d. Debranching

[0024] When the temperature of the starch paste solution drops to 58°C, add pullulanase 10U / g starch and perform debranching treatment for 18 hours. After the reaction is completed, immediately heat the solution to 90°C and keep it for 10 minutes to inactivate the enzyme and terminate the debranching. Branch reaction;

[0025] e. cooling crystallization

[0026] Cool the debranched solution to room temperature and let it stand still fo...

Embodiment 2

[0029] a. Blending

[0030] a.1 Take 1000g of cornstarch, the pulping concentration is 20Be',

[0031] a.2 adjust the pH value to 6.7,

[0032] a.3 Add high temperature resistant α-amylase 1.L / t starch;

[0033] b. Gelatinization

[0034] First preheat to 100°C, and then spray gelatinization, the temperature inside the injector is controlled at 135°C,

[0035] c After the vacuum flash cooling system, the temperature drops from 80°C to 70°C, the iodine test shows its true color, and the gelatinization is completed;

[0036] d. Debranching

[0037] When the temperature of the starch paste solution drops to 60°C, add pullulanase 30U / g starch and carry out debranching treatment for 18 hours. After the reaction is over, immediately heat the solution to 85°C and keep it for 15 minutes to inactivate the enzyme and terminate the debranching. Branch reaction;

[0038] e. cooling crystallization

[0039] Cool the debranched solution to room temperature and let stand for 18 hours;...

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PUM

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Abstract

The invention discloses a method for using corn starch to prepare resistant starch. The method belongs to the field of agricultural products processing. The technical scheme is implemented by the following steps of: carrying out corn starch mixing, carrying out pasting, carrying out vacuum flash cooling, carrying out debranching, cooling and crystallizing, centrifugally separating, and obtaining the corn resistant starch. The method for using the corn starch to prepare the resistant starch provided by the invention overcomes the defect that the conventional corn resistant starch prepared by ways of an autoclave method, an enzymic method and an acid method and the like is low in purity, so that the purity of the resistant starch prepared by the corn starch is more than 40%.

Description

technical field [0001] The invention relates to a method for preparing resistant starch, in particular to a method for using cornstarch to prepare resistant starch, and belongs to the field of agricultural product processing. Background technique [0002] Resistant starch is also known as enzyme-resistant starch and indigestible starch. Compared with other starches, this kind of starch is difficult to degrade, and it is digested and absorbed slowly in the human body and enters the blood. Resistant starch itself is still starch. Its chemical structure is different from that of fiber, but its properties are similar to soluble fiber. First, resistant starch is a kind of dietary fiber. The totality of edible vegetable ingredients, carbohydrates and the like that can be partially or fully fermented. Includes polysaccharides, oligosaccharides, lignin, and related plant matter. Dietary fiber has a variety of physiological functions such as laxative, regulating and controlling blo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/14
Inventor 黄继红苗仲水惠民张华张新武侯银臣何星
Owner 庆阳中盛必优特生物科技有限公司