CN105399838A - A preparing process of crosslinked starch by adding cis-butenedioic acid - Google Patents
A preparing process of crosslinked starch by adding cis-butenedioic acid Download PDFInfo
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- CN105399838A CN105399838A CN201510913727.3A CN201510913727A CN105399838A CN 105399838 A CN105399838 A CN 105399838A CN 201510913727 A CN201510913727 A CN 201510913727A CN 105399838 A CN105399838 A CN 105399838A
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- maleic acid
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Abstract
A preparing process of crosslinked starch by adding cis-butenedioic acid is disclosed. The process includes adding a cis-butenedioic acid crosslinking agent to perform chemical modification in a process of preparing porous starch from natural starch by enzymolysis. The modified crosslinked starch is high in stability for heat, acid and shearing force influences. The process has a good application prospect.
Description
Technical field
The present invention relates to a kind of processing method of treated starch, particularly a kind ofly add linking agent carries out chemical modification method to porous-starch, belong to starch Chemical Industry field.
Background technology
Starch is a kind of polysaccharide, and molecular formula is (C
6h
10o
5)
n.It can be degraded, and has the starting material of thermoplastic properties, but because poorly water-soluble, Application in Chemical Engineering is very limited, therefore adopts treated starch often.
Porous-starch is the one of treated starch, and porous produces very large specific surface area, and thus porous-starch is mainly used as the carrier of absorption.Porous-starch, compared with other sorbent materials, except having good absorption property, also has the characteristics such as biodegradable, production technique simple, be widely used.Preparing in porous-starch process, not only its hole count, aperture, hole depth can be controlled, also modification easily can be carried out according to adsorbed material characteristic to it.Such as, when adsorbed material is apolar substance, non-polar group can be connected on the surface of porous-starch, thus strengthen the specificity of its absorption.Therefore can be used as a kind of efficient, nontoxic, safe sorbent material, be widely used in the industries such as food, medical and health, agricultural, papermaking, printing, makeup, washing composition, tackiness agent.
At present, modification is carried out to native starch and prepares porous-starch and mainly contain following several method: one is physical method, such as, by ultrasonic irradiation or spray art; Two is adopt mechanical means, such as, by mechanical impacts such as ball-milling technologies; 3rd is biochemical method, such as alcohol sex change or acid hydrolysis, and in above-mentioned several method, the production cost of the mechanical impact such as ultrasonic irradiation, ball-milling technology method is higher, not easily realizes industrial sector; And spray method and alcohol sex change are formed is a kind of solid popcorn polymer spheroid, adsorption only occurs in the rough gully of spherome surface, and adsorptive capacity is more limited, and application prospect is pessimistic; Acid-hydrolysis method speed of reaction under gelatinization point is comparatively slow, and degraded differs, and randomness is strong, is not easily formed poroid, limits the application of acid system.And adopt enzyme liberating technique, control spherex particle diameter and microvoid structure by regulating preparation process condition and adding suitable adjuvants, the modified porous starch specific surface area of preparation is large, has wide application prospect.But after starch granules forms porous-starch under the effect of uncooked amylum enzyme, its structure suffers destruction to a certain degree, show as poor, the anti-Swelling Capacity of resistance to mechanical destructive force and weaken.In order to make up porous-starch these deficiencies structural, add linking agent again, chemical modification is carried out to it, the alcoholic extract hydroxyl group of starch molecule, in the chemical reagent reaction containing binary or polynary functional group, makes to join together between the hydroxyl of different starch molecule to present the cancellated starch derivative of hyperspace.
Maleic acid, also have in medicine, agricultural chemicals, food etc. and apply more widely, the present invention carries out enzymolysis process at starch and prepares in porous-starch process, add maleic acid linking agent, porous-starch is cross-linked, after crosslinked, the relative molecular mass of porous-starch becomes large, has high stability to heat, acid and shearing force impact.
Summary of the invention
The object of this invention is to provide a kind of processing method of adding maleic acid and preparing cross-linking starch, the main step of its method is as follows:
(1) first get a certain amount of native starch to pour in a container, then pour appropriate distilled water into, heating, and be uniformly mixed and carry out abundant gelatinization;
(2) be cooled to room temperature after gelatinization fully, then add appropriate sodium dodecyl sulfate solution, stirring and dissolving is even;
(3) again solution system is heated, then add a certain amount of glucoamylase, stir and make it fully react;
(4) add a certain amount of maleic acid, fully react;
(5) again mixture is poured in acetone soln, filtration, collecting precipitation,
(6) again precipitation is poured in clear water, again and filter;
(7) collect filtration product, place vacuum-drying, obtain product.
Preferentially, step (1) in, the native starch added can W-Gum, soybean starch, wheat starch.
Preferentially, step (1) in, Heating temperature is 60-70 DEG C.
Preferentially, step (2) in, the amount of the sodium lauryl sulphate of interpolation and the ratio of native starch are 1mL:5g.
Preferentially, step (3) in, system Heating temperature is 40-50 DEG C.
Preferentially, step (3) in, the mass ratio of glucoamylase and native starch is 1:50.
Preferentially, step (4) in, the amount of the maleic acid of interpolation and the ratio of native starch are 1mL:100g.
The present invention has following advantages and characteristic:
(1) modified technique is simple, easily operates;
(2) the treated starch prepared has higher stability.
Embodiment
Embodiment one:
The native starch first getting 5g is poured in a container, then pours 100ml distilled water into, by heating in water bath to 60 DEG C, and is constantly uniformly mixed, and makes the abundant gelatinization of solution; After gelatinization, solution system is cooled to room temperature, then adds 1mL sodium dodecyl sulfate solution, stirring and dissolving is even, again solution system is heated, when temperature reaches to 40 DEG C, then add the glucoamylase of 0.1g, and constantly stir, fully add 0.05g maleic acid after reaction, fully after reaction, again solution is poured in acetone soln, filter, collecting precipitation, then precipitation poured in clear water, again filter, collect filtration product, place vacuum-drying, obtain product.
Embodiment two:
The native starch first getting 10g is poured in a container, then pours 200ml distilled water into, by heating in water bath to 65 DEG C, and is constantly uniformly mixed, and makes the abundant gelatinization of solution; After gelatinization, solution system is cooled to room temperature, then adds 2mL sodium dodecyl sulfate solution, stirring and dissolving is even, again solution system is heated, when temperature reaches to 45 DEG C, then add the glucoamylase of 0.2g, and constantly stir, fully add 0.1g maleic acid after reaction, fully after reaction, again solution is poured in acetone soln, filter, collecting precipitation, then precipitation poured in clear water, again filter, collect filtration product, place vacuum-drying, obtain product.
Embodiment three:
The native starch first getting 20g is poured in a container, then pours 300ml distilled water into, by heating in water bath to 70 DEG C, and is constantly uniformly mixed, and makes the abundant gelatinization of solution; After gelatinization, solution system is cooled to room temperature, then adds 4mL sodium dodecyl sulfate solution, stirring and dissolving is even, again solution system is heated, when temperature reaches to 50 DEG C, then add the glucoamylase of 0.4g, and constantly stir, fully add 0.2g maleic acid after reaction, fully after reaction, again solution is poured in acetone soln, filter, collecting precipitation, then precipitation poured in clear water, again filter, collect filtration product, place vacuum-drying, obtain product.
Claims (7)
1. add the processing method that maleic acid prepares cross-linking starch, it is characterized in that, the method comprises the steps:
(1) first get a certain amount of native starch to pour in a container, then pour appropriate distilled water into, heating, and be uniformly mixed and carry out abundant gelatinization;
(2) be cooled to room temperature after gelatinization fully, then add appropriate sodium dodecyl sulfate solution, stirring and dissolving is even;
(3) again solution system is heated, then add a certain amount of glucoamylase, stir and make it fully react;
(4) add a certain amount of maleic acid, fully react;
(5) again mixture is poured in acetone soln, filtration, collecting precipitation,
(6) again precipitation is poured in clear water, again and filter;
(7) collect filtration product, place vacuum-drying, obtain product.
2. a kind of processing method of adding maleic acid and preparing cross-linking starch according to claim 1, is characterized in that, step (1) in, the native starch added can W-Gum, soybean starch, wheat starch.
3. a kind of processing method of adding maleic acid and preparing cross-linking starch according to claim 1, is characterized in that, step (1) in, Heating temperature is 60-70 DEG C.
4. a kind of processing method of adding maleic acid and preparing cross-linking starch according to claim 1, is characterized in that, step (2) in, the amount of the sodium lauryl sulphate of interpolation and the ratio of native starch are 1mL:5g.
5. a kind of processing method of adding maleic acid and preparing cross-linking starch according to claim 1, is characterized in that, step (3) in, system Heating temperature is 40-50 DEG C.
6. a kind of processing method of adding maleic acid and preparing cross-linking starch according to claim 1, is characterized in that, step (3) in, the mass ratio of glucoamylase and native starch is 1:50.
7. a kind of processing method of adding maleic acid and preparing cross-linking starch according to claim 1, is characterized in that, step (4) in, the amount of the maleic acid of interpolation and the ratio of native starch are 1mL:100g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913727.3A CN105399838A (en) | 2015-12-12 | 2015-12-12 | A preparing process of crosslinked starch by adding cis-butenedioic acid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510913727.3A CN105399838A (en) | 2015-12-12 | 2015-12-12 | A preparing process of crosslinked starch by adding cis-butenedioic acid |
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| CN105399838A true CN105399838A (en) | 2016-03-16 |
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| CN201510913727.3A Pending CN105399838A (en) | 2015-12-12 | 2015-12-12 | A preparing process of crosslinked starch by adding cis-butenedioic acid |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129335A (en) * | 2017-06-05 | 2017-09-05 | 也村（重庆）食品科技股份有限公司 | The ecology planting method of Rocket ram jet |
| CN108239166A (en) * | 2016-12-27 | 2018-07-03 | 杨峰 | A kind of technique for preparing crosslinked starch using maleic acid modification |
| CN108239169A (en) * | 2016-12-27 | 2018-07-03 | 杨峰 | A kind of technique added divinylbenzene modification and prepare crosslinked starch |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661028A (en) * | 2004-12-22 | 2005-08-31 | 华南理工大学 | Method for preparing porous starch through enzyme method in high temperature |
| CN101932648A (en) * | 2008-02-01 | 2010-12-29 | 罗盖特公司 | Thermoplastic compositions based on soluble starch and method for preparing such compositions |
-
2015
- 2015-12-12 CN CN201510913727.3A patent/CN105399838A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1661028A (en) * | 2004-12-22 | 2005-08-31 | 华南理工大学 | Method for preparing porous starch through enzyme method in high temperature |
| CN101932648A (en) * | 2008-02-01 | 2010-12-29 | 罗盖特公司 | Thermoplastic compositions based on soluble starch and method for preparing such compositions |
Non-Patent Citations (1)
| Title |
|---|
| 林江涛 等: "微孔性变性淀粉的研究", 《郑州粮食学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108239166A (en) * | 2016-12-27 | 2018-07-03 | 杨峰 | A kind of technique for preparing crosslinked starch using maleic acid modification |
| CN108239169A (en) * | 2016-12-27 | 2018-07-03 | 杨峰 | A kind of technique added divinylbenzene modification and prepare crosslinked starch |
| CN107129335A (en) * | 2017-06-05 | 2017-09-05 | 也村（重庆）食品科技股份有限公司 | The ecology planting method of Rocket ram jet |
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Application publication date: 20160316 |
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