CN105504074A - Method for preparing crosslinked starch through succinic acid diepoxide propyl ester - Google Patents
Method for preparing crosslinked starch through succinic acid diepoxide propyl ester Download PDFInfo
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- CN105504074A CN105504074A CN201510914042.0A CN201510914042A CN105504074A CN 105504074 A CN105504074 A CN 105504074A CN 201510914042 A CN201510914042 A CN 201510914042A CN 105504074 A CN105504074 A CN 105504074A
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- Prior art keywords
- starch
- succinic acid
- propyl alcohol
- alcohol ester
- diepoxy propyl
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/003—Crosslinking of starch
- C08B31/006—Crosslinking of derivatives of starch
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention aims at providing a method for preparing crosslinked starch through succinic acid diepoxide propyl ester. According to the method, a succinic acid diepoxide propyl ester crosslinking agent is added during the preparation of starch, the starch is chemically modified, and chemical reaction is performed between alcoholic hydroxyl groups of starch molecules and succinic acid diepoxide propyl ester functional groups, so that hydroxyl groups of different starch molecules are combined to present a multi-dimensional space mesh structure, and the disadvantage of the instability of modified starch is overcome.
Description
Technical field
The present invention relates to a kind of preparation method of cross-linking starch, particularly a kind ofly add succinic acid diepoxy propyl alcohol ester carries out chemical modification preparation method to porous-starch, belong to Starch synthesis field.
Background technology
Porous-starch is the one of treated starch, and porous produces very large specific surface area, and 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, its hole count, aperture, hole depth can be controlled, can be used as a kind of efficient, nontoxic, safe sorbent material, being 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.
The present invention carries out enzymolysis process at starch and prepares in porous-starch process, and add succinic acid diepoxy propyl alcohol ester linking agent, be cross-linked porous-starch, 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 method utilizing succinic acid diepoxy propyl alcohol ester to prepare 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, heat and stir, solution is carried out abundant gelatinization;
(2) be cooled to room temperature after gelatinization fully, then add appropriate sodium dodecyl sulfate solution, by even for its stirring and dissolving;
(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 succinic acid diepoxy propyl alcohol ester solution, 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 cross-linking starch.
Preferentially, step (1) in, the native starch added can W-Gum, soybean starch, wheat starch, rice 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 succinic acid diepoxy propyl alcohol ester and the ratio of native starch of interpolation are 1mL:100g.
The present invention has following advantages and characteristic:
(1) preparation method's technique is simple, easily operates;
(2) the cross-linking starch good stability prepared.
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 0.05mL succinic acid diepoxy propyl alcohol ester 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 cross-linking starch.
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 0.1mL succinic acid diepoxy propyl alcohol ester 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 cross-linking starch.
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 0.2mL succinic acid diepoxy propyl alcohol ester 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 cross-linking starch.
Claims (7)
1. utilize succinic acid diepoxy propyl alcohol ester to prepare a method for 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, heat and stir, solution is carried out abundant gelatinization;
(2) be cooled to room temperature after gelatinization fully, then add appropriate sodium dodecyl sulfate solution, by even for its stirring and dissolving;
(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 succinic acid diepoxy propyl alcohol ester solution, 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 cross-linking starch.
2. a kind of method utilizing succinic acid diepoxy propyl alcohol ester to prepare 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, rice starch.
3. a kind of method utilizing succinic acid diepoxy propyl alcohol ester to prepare 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 method utilizing succinic acid diepoxy propyl alcohol ester to prepare 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 method utilizing succinic acid diepoxy propyl alcohol ester to prepare 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 method utilizing succinic acid diepoxy propyl alcohol ester to prepare 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 method utilizing succinic acid diepoxy propyl alcohol ester to prepare cross-linking starch according to claim 1, is characterized in that, step (4) in, the amount of succinic acid diepoxy propyl alcohol ester and the ratio of native starch of interpolation are 1mL:100g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510914042.0A CN105504074A (en) | 2015-12-12 | 2015-12-12 | Method for preparing crosslinked starch through succinic acid diepoxide propyl ester |
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| CN201510914042.0A CN105504074A (en) | 2015-12-12 | 2015-12-12 | Method for preparing crosslinked starch through succinic acid diepoxide propyl ester |
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| CN201510914042.0A Pending CN105504074A (en) | 2015-12-12 | 2015-12-12 | Method for preparing crosslinked starch through succinic acid diepoxide propyl ester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108239170A (en) * | 2016-12-27 | 2018-07-03 | 杨峰 | A kind of cross-linking modified starch for adding succinic acid diepoxy propyl alcohol ester |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1660128A (en) * | 2004-12-24 | 2005-08-31 | 谢勇 | Application of chitosan and ramification in lkjpreparing product for anti Helicobacter Pylori |
| CN103590281A (en) * | 2012-08-14 | 2014-02-19 | 金东纸业（江苏）股份有限公司 | Surface sizing solution, and surface sizing solution used sized paper |
-
2015
- 2015-12-12 CN CN201510914042.0A patent/CN105504074A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1660128A (en) * | 2004-12-24 | 2005-08-31 | 谢勇 | Application of chitosan and ramification in lkjpreparing product for anti Helicobacter Pylori |
| CN103590281A (en) * | 2012-08-14 | 2014-02-19 | 金东纸业（江苏）股份有限公司 | Surface sizing solution, and surface sizing solution used sized paper |
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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108239170A (en) * | 2016-12-27 | 2018-07-03 | 杨峰 | A kind of cross-linking modified starch for adding succinic acid diepoxy propyl alcohol ester |
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