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Preparation method and production and control method of modified starch with specific performance

A production control method and modified starch technology, applied in the field of modified starch, can solve the problems of unfavorable modified starch, increased work intensity, cumbersome detection, etc., and achieve the effect of convenient operation and improved quality

Inactive Publication Date: 2018-01-30
SHANDONG SHENZHOU XIANGYU TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many kinds of modified starches, and the control methods in the reaction process are complex and diverse
The central control method for each type of modified starch is different, and the detection is cumbersome and time-consuming, which increases the work intensity in the actual production process
In addition, in the existing central control method, samples are taken at the right time during the reaction process, and the degree of reaction is detected by complex and cumbersome chemical methods, and the detection process takes a long time, which cannot accurately guide the reaction, and is not conducive to obtaining denaturation of specific properties. starch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of preparation method of the modified starch of specific performance, described modified starch is acidified starch, comprises the following steps:

[0021] (1) Establishing a reference performance index: using a chemical analysis method to obtain a reference performance index corresponding to the target product, and detecting that the alkali fluidity of the target acidified starch is 17F-18F;

[0022] (2) Set up spectral model: use 400 acidified starches with alkali mobility between 10-20 as standard samples, measure and detect with near-infrared spectrometer, and build spectral model;

[0023] (3) Reaction process: throw 2000 parts of cornstarch milk and 1 part of vitamin C, add in water, adjust to 20Be starch aqueous solution, measure the viscosity and pH value of the cornstarch milk concentration, and slowly adjust the starch with a hydrochloric acid solution with a concentration of 10wt% When the pH value of the aqueous solution reaches 2, the temperature is...

Embodiment 2

[0027] A kind of preparation method of the modified starch of specific performance, described modified starch is acetate starch, comprises the following steps:

[0028] (1) Establishing a reference performance index: using a chemical analysis method to obtain a reference performance index corresponding to the target product, and detecting that the degree of substitution of the target acetate starch is 0.06-0.08;

[0029] (2) set up spectral model: with 400 alkali mobility between 0.02-0.09 acetate starch as standard sample, measure and detect with near-infrared spectrometer, build spectral model;

[0030] (3) Reaction process: throw 3000 parts of cornstarch milk, 5 parts of vitamin C, add in water, adjust the starch aqueous solution of 25Be, measure the viscosity and the pH value of cornstarch milk concentration, be that the calcium hydroxide solution of 15wt% slowly Adjust the pH value of the starch aqueous solution to 10, and at the same time raise the temperature to 75°C, a...

Embodiment 3

[0034] A kind of preparation method of the modified starch of specific performance, described modified starch is oxidized starch, comprises the following steps:

[0035] (1) Establishing a reference performance index: using a chemical analysis method to obtain a reference performance index corresponding to the target product, and detecting that the viscosity of the target oxidized starch is 6-7mpa.s;

[0036] (2) Establish a spectral model: use 400 oxidized starches with a viscosity of 5-8mpa.s as a standard sample, measure and detect with a near-infrared spectrometer, and construct a spectral model;

[0037] (3) Reaction process: throw 2500 parts of cornstarch milk, 4 parts of vitamin C, add in water, be adjusted into the starch aqueous solution of 20-25Be, measure the viscosity and the pH value of cornstarch milk concentration, be the hydrogen of 5-15wt% with concentration Slowly adjust the pH value of the starch aqueous solution to 8.5 with the calcium oxide solution, and a...

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Abstract

The invention discloses a production and control method of modified starch with specific performance. The method comprises the following steps of (1) building a reference performance index; (2) building a spectral model; (3), in the reaction process, feeding 2000 to 3000 parts of corn starch milk and 1 to 5 parts of vitamin C to prepare 20 to 25 Be of starch water solution; adding 1 to 3 parts ofxanthin and 1 to 5 parts of chitosan; performing uniform mixing; (4) in the monitoring process, performing preparation to obtain a test sample; comparing the performance index of the test sample and the reference performance index so as to judge the reaction terminal point of the synthesis reaction; (5) performing termination reaction. The production and control method and a preparation method ofthe modified starch with specific performance provided by the embodiment of the invention have the advantages that the operation is convenient; the real-time monitoring can be realized; the applicability to various kinds of modified starch can be realized; the quality of the modified starch with specific performance can be improved.

Description

technical field [0001] The invention relates to the technical field of modified starch, in particular to a method for preparing modified starch with specific properties and a production control method thereof. Background technique [0002] In order to improve the performance of starch and expand its application range, physical, chemical or enzymatic treatment is used to introduce new functional groups on starch molecules or change the size of starch molecules and the properties of starch granules, thereby changing the natural characteristics of starch (such as: gelatinization temperature , thermal viscosity and its stability, freeze-thaw stability, gel strength, film-forming properties, transparency, etc.), making it more suitable for certain application requirements. This kind of starch that has undergone secondary processing and changed its properties is collectively referred to as modified starch. [0003] There are more than 2,000 varieties and specifications of modifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/00C08B31/04C08B31/18C08L3/04C08L3/06C08L3/10C08L5/08C08K5/053C08K5/1535C08K5/41C08K5/1545G01N21/3577G01N21/359
Inventor 任思凯李超周忠伟袁美宏任思龙
Owner SHANDONG SHENZHOU XIANGYU TECH GRP