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A kind of preparation method of resistant dextrin

A technology of resistant dextrin and concentration, applied in fermentation and other directions, can solve the problems of high bitterness, many side reactions, difficult refining, etc., and achieve the effects of easy market promotion, less side reactions, and low heat.

Active Publication Date: 2017-08-18
SHANDONG BAILONG CHUANGYUAN BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The traditional preparation method of resistant dextrin is that starch is subjected to high temperature treatment under acid catalysis to obtain pyrodextrin, which is then treated with enzymes, refined and dried to obtain resistant dextrin. The disadvantage of this method is that there are many side reactions, and the refined Difficult, the product is bitter, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of resistant dextrin, comprising the steps of:

[0043] (1) adding water to the cornstarch to adjust the concentration of the starch slurry, and adjusting the concentration of the starch slurry to 20 degrees Baume to obtain the starch slurry;

[0044] (2) Add high-temperature-resistant α-amylase to the starch slurry prepared in step (1), the addition of high-temperature-resistant α-amylase is to add 2.5×10 per ton of dry starch 7 U, after liquefaction, the liquefaction condition is jet liquefaction, the temperature is 115°C, and the liquefaction liquid with a DE value of 5% is obtained;

[0045] (3) concentrating the volume of the liquefied liquid prepared in step (2) to 50% to obtain concentrated liquid A;

[0046] Add β-amylase and pullulanase to the liquefied liquid prepared in step (2), react at 50°C for 120 h, and then concentrate the volume to 60% to obtain concentrated liquid B;

[0047] The amount of β-amylase added is 2.0×10 7 U, the amo...

Embodiment 2

[0058] A preparation method of resistant dextrin, comprising the steps of:

[0059] (1) adding water to the cassava starch to adjust the slurry concentration, adjusting the concentration of the starch slurry to 25 degrees Baume, and making the starch slurry;

[0060] (2) Add high-temperature-resistant α-amylase to the starch slurry prepared in step (1), the addition of high-temperature-resistant α-amylase is to add 3.0×10 per ton of dry starch 7 U, after liquefaction, the liquefaction condition is jet liquefaction, the temperature is 125°C, and the liquefaction liquid with DE value of 10% is obtained;

[0061] (3) concentrating the volume of the liquefied liquid prepared in step (2) to 55% to obtain concentrated liquid A;

[0062] Add β-amylase and pullulanase to the liquefied liquid prepared in step (2), react at 55°C for 150 hours, and then concentrate the volume to 65% to obtain concentrated liquid B;

[0063] The amount of β-amylase added is 2.5×10 7 U, the amount of pu...

Embodiment 3

[0074] A preparation method of resistant dextrin, comprising the steps of:

[0075] (1) adding water to the sweet potato starch to adjust the slurry concentration, adjusting the concentration of the starch slurry to 22 degrees Baume to obtain the starch slurry;

[0076] (2) Add high-temperature-resistant α-amylase to the starch slurry prepared in step (1), the addition of high-temperature-resistant α-amylase is to add 2.2×10 per ton of dry starch 7 U, after liquefaction, the liquefaction condition is spray liquefaction, the temperature is 120°C, and the liquefaction liquid with DE value of 8% is obtained;

[0077] (3) concentrating the volume of the liquefied liquid prepared in step (2) to 52% to obtain concentrated liquid A;

[0078] Add β-amylase and pullulanase to the liquefied liquid prepared in step (2), react at 53°C for 130h, and then concentrate the volume to 62% to obtain concentrated liquid B;

[0079] The amount of β-amylase added is 2.3×10 7 U, the amount of pul...

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Abstract

The invention relates to a preparation method of resistant dextrin. The method comprises steps as follows: (1) adding water to a raw starch material to adjust the concentration of slurry to obtain starch slurry; (2) adding high-temperature-resistant alpha-amylase to the starch slurry, and performing liquidation to obtain a liquidation liquid; (3) concentrating the liquidation liquid to obtain a concentrated liquid A, adding beta-amylase and pullulanase to the liquidation liquid obtained in Step (2), and performing concentration after the reaction to obtain a concentrated liquid B; (4) mixing the concentrated liquid A with the concentrated liquid B, and adding organic acid for reactions to obtain a reaction liquid; (5) decolorizing, filtering, ion-exchanging, concentrating and drying the reaction liquid to obtain the resistant dextrin. According to the method, the starch is used as the raw material, enzymes are combined for use, then the organic acid is added as a catalyst, and the resistant dextrin is prepared; compared with traditional preparation methods that the starch is directly used as the raw material and acids are added, the method is mild in reaction condition, few in side reaction, easy in refining and convenient to market.

Description

technical field [0001] The invention relates to a preparation method of resistant dextrin, which belongs to the technical field of food additive production. Background technique [0002] With the improvement of people's living standards, people's daily eating habits tend to be high-fat, high-protein, and high-calorie foods, which has caused many people to develop hyperlipidemia, high blood pressure, and high blood sugar at a young age, commonly known as "three highs". The World Health Organization has clearly stated that the first line of defense in the prevention and treatment of cardiovascular disease is to reduce and control the "three highs". Among these people with three highs, except for those who are more serious and need to cooperate with drug treatment, most of them can be adjusted through diet therapy and other methods to avoid the side effects of drugs. [0003] Dietary fiber is a carbohydrate that cannot be digested by the human body. It is divided into two cate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P19/14C12P19/04
Inventor 禚洪建窦光朋干昭波邵先豹刘双双杨腾腾
Owner SHANDONG BAILONG CHUANGYUAN BIO TECH
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