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Method for preparing low-digestible energy (DE) value maltodextrin

A maltodextrin and starch paste technology, which is applied in the field of preparation of low DE value maltodextrin, can solve the problems of difficult and stable generation, difficult operation, difficult filtration and the like, and achieves the effects of diversified adjustment means and good application prospects.

Inactive Publication Date: 2012-11-07
SHANGHAI EAST TIDE BIOLOGICAL TECH DEV
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Problems solved by technology

And there are difficulties in actual operation, difficulty in filtering, etc.
[0004] If the process can be improved from the perspective of jet cooking supporting stable and thorough liquefaction, it is difficult to fully explore the DE value of the liquefied liquid and the maltodextrin aqueous solution with a DE value lower than 10 in the liquefied liquid is difficult to produce stably

Method used

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  • Method for preparing low-digestible energy (DE) value maltodextrin

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Experimental program
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Embodiment 1

[0022] (1) Use cornstarch as raw material, add water to make slurry, adjust the dry matter concentration of the slurry to 20%, adjust the pH value to 5.8, and add high-temperature-resistant amylase to the slurry;

[0023] (2) Use a digester to cook the above slurry at 108°C for 5 minutes. During the cooking process, confirm that the pressure difference across the heating zone of the digester (digester raw material feed pressure - clinker discharge pressure) is not less than 2 kg. Starch paste was obtained after cooking, and the starch paste was liquefied and hydrolyzed. The liquefaction time was 30, 60, 90, 120 and 150 minutes respectively. The obtained liquefied liquid was subjected to iodine test, and the filtration speed and DE value were measured. The results are shown in Table 1. , to obtain maltodextrin aqueous solution.

[0024] Table 1 Records of DE value and iodine test color after cooking 20% ​​corn starch liquefied using a digester

[0025]

[0026] As shown in ...

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Abstract

The invention relates to a method for preparing low-digestible energy (DE) value maltodextrin. The method comprises the following steps of: (1) adding cereal starch serving as a raw material into water to prepare starch, regulating the concentration of a dried substance of the starch to be 20 to 30 percent, regulating the ph value to be 5.8 to 6.2, and adding high temperature-resistant diastase into the starch; and (2) steaming the starch by using a digester at the temperature of between 108 and 110 DEG C for 5 to 6 minutes to obtain starch paste, liquefying and hydrolyzing the starch paste for 30 to 150 minutes, heating and killing enzyme to obtain a maltodextrin aqueous solution. By the method, the low-DE value maltodextrin can be obtained stably, is in non-blue color by iodine tests and is not needed to be filtered; and by the method, the good economic and reliable condition for producing the low-DE value maltodextrin is created, and the method has a good application prospect.

Description

technical field [0001] The invention belongs to the field of maltodextrin preparation, in particular to a preparation method of low DE value maltodextrin. Background technique [0002] Maltodextrin is obtained from various types of corn starch as raw materials, through enzyme-catalyzed hydrolysis, to obtain different degrees of degradation reaction products, and can be directly subjected to different saccharification reactions to produce glucose and maltose. Maltodextrin can also be directly added to food and medicine as an important auxiliary agent or a filler that does not affect the taste, and is widely used. The characteristics and specifications of maltodextrin are determined by the degree of hydrolysis reaction. The degree of hydrolysis reaction is expressed by the glucose equivalent (DE value) of maltodextrin aqueous solution. A low DE value indicates a low degree of degradation, a relatively large molecular weight, and molecular characteristics close to starch. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/14
Inventor 蔡怡陈乐仁陈义天陈玉梅程静
Owner SHANGHAI EAST TIDE BIOLOGICAL TECH DEV
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