CN105348400A - Citrate starch and preparing method thereof - Google Patents
Citrate starch and preparing method thereof Download PDFInfo
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- CN105348400A CN105348400A CN201510933458.7A CN201510933458A CN105348400A CN 105348400 A CN105348400 A CN 105348400A CN 201510933458 A CN201510933458 A CN 201510933458A CN 105348400 A CN105348400 A CN 105348400A
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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
- C08B31/02—Esters
- C08B31/04—Esters of organic acids, e.g. alkenyl-succinated starch
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- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention aims to provide citrate starch and a preparing method thereof. The preparing method comprises the steps of taking certain amount of citric acid, adding distilled water, continuously stirring with a stirrer to dissolve the citric acid in water, then pouring a certain amount of NaOH solution to adjust a pH value of the solution to be between 4-3, adding water chestnut starch under continuous stirring, standing and reacting for a period of time, then placing in a drying box for drying, after drying, taking out a dried product for grinding, further reacting ground powder in high temperature environment, cleaning with an acetone solution, finally washing with water and drying to obtain the citrate starch.
Description
Technical field
The present invention relates to a kind of modified starch, particularly with water chestnut starch for a kind of technique of modified starch prepared by raw material, belong to chemical industry synthesis field.
Background technology
Starch is as a kind of important industrial raw material.Its wide material sources, degradable feature advantage, be more and more applied to every profession and trade.But some inherent naturies of native starch: cold water is insoluble, stick with paste liquid in acid, heat, unstable etc. under shearing action, limit application in the industry, therefore people develop the sex change technology of starch according to the structure of starch and physico-chemical property, namely use the method for physics, chemistry and enzyme, ative starch is processed, make it have the character of certain special purpose applicable, this process is exactly the sex change of starch, and its product is exactly modified starch.Modified starch has unique good characteristic, is widely used in the fields such as industrial and agricultural production such as weaving, food.
The output of current whole world modified starch is about 7,000,000 tons, wherein about 2,600,000 tons, the U.S., about 1,000,000 tons, European Union.In recent years, modified starch has had in China and has developed faster, and be widely used in industrial production, range of product has expanded to tens series up to a hundred kinds.Esterification starch is exactly the one in modified starch, due to its distinctive character, is applied widely in the industry.Esterification starch just refers to the class modified starch that the hydroxyl in starch structure is obtained by organic acid or mineral acid esterification.Different according to the sour kind that esterification occurs, be divided into two large classes: one is starch organic acid acetic, and two is starch inorganic acid esters.
Starch organic ester is the kind of starch derivative utilizing the hydroxyl of starch and organic acid (acid anhydride) to be generated by esterification, and starch organic ester is widely used in all trades and professions as degradable, ep-type material.Hydrophobicity due to general organic acid acetic can improve the sizing performance of starch to hydrophobic synthetic fibre, therefore the use of organosilane ester modified starch in textile warp starching is particularly noticeable.They, while the excellent biodegradability of succession ative starch, also in the defect improving ative starch in varying degrees, compensate for the deficiency of ative starch in slashing process.
Water chestnut is containing a large amount of starch, and starch accounts for more than 86% of dry weight, and the present invention for raw material, prepares a kind of citrate starch with natural water chestnut starch, and its preparation technology is simple, and yield rate is high.
Summary of the invention
The object of this invention is to provide a kind of citrate starch and preparation technology thereof, its step of preparation process is as follows:
(1) get a certain amount of citric acid, add distilled water, and constantly stir with agitator, citric acid is dissolved in water;
(2) pour a certain amount of NaOH solution again into, the pH value of regulator solution is between 3-4;
(3), under continuous agitation condition, add water chestnut starch, standing and reacting for some time;
(4) again mixture is put into loft drier drying, after dry, take out dry thing;
(5) drier thing is ground, collect powder, put into high temperature and make it fully react;
(6) reactant is poured in acetone soln, refilters,
(7) again filtrate is washed with water, and again filter;
(8) filtrate is carried out drying, obtain citrate starch.
Preferentially, step (2) in, the solubility of NaOH solution is 3-4mol/mL.
Preferentially, step (3) in, the standing and reacting time is 5-10 hour.
Preferentially, step (4) in, drying temperature is 50-60 DEG C, and time of drying controls at 1-2 hour.
Preferentially, step (5) in, hot environment controls at 140-150 DEG C, and the reaction times is 3-5 hour.
Preferentially, step (8) in, drying temperature is between 40-60 DEG C, and time of drying is 2-3 hour.
The present invention has following advantages and characteristic:
(1) preparation technology is simple, flow process is short;
(2) abundant raw material, cheap.
Embodiment
Embodiment one:
Get and 10g citric acid is loaded in container, add the distilled water of 20ml, and constantly stir with agitator, citric acid is made to dissolve fully in water, pour the NaOH solution of 3mol/mL again into, the pH value of regulator solution is between 3-4, under continuous agitation condition, add the water chestnut starch of 30g, standing and reacting 5 hours, again mixture is put into loft drier dry 1 hour, drying temperature controls at 60 DEG C, take out dry thing after dry and grind, collect the starch powder of grinding, putting it in the hot environment of 140 DEG C makes it fully react, react after 5 hours, reactant is taken out and pours in acetone soln, refilter, again filtration product is washed with water, and filter, finally filtration product is put into the loft drier drying that temperature is 40 DEG C, after dry 3 hours, obtain citrate starch.
Embodiment two:
Get and 20g citric acid is loaded in container, add the distilled water of 40ml, and constantly stir with agitator, citric acid is made to dissolve fully in water, pour the NaOH solution of 4mol/mL again into, the pH value of regulator solution is between 3-4, under continuous agitation condition, add the water chestnut starch of 50g, standing and reacting 8 hours, again mixture is put into loft drier dry 1 hour, drying temperature controls at 60 DEG C, take out dry thing after dry and grind, collect the starch powder of grinding, putting it in the hot environment of 140 DEG C makes it fully react, react after 5 hours, reactant is taken out and pours in acetone soln, refilter, again filtration product is washed with water, and filter, finally filtration product is put into the loft drier drying that temperature is 40 DEG C, after dry 3 hours, obtain citrate starch.
Embodiment three:
Get and 50g citric acid is loaded in container, add the distilled water of 80ml, and constantly stir with agitator, citric acid is made to dissolve fully in water, pour the NaOH solution of 4mol/mL again into, the pH value of regulator solution is between 3-4, under continuous agitation condition, add the water chestnut starch of 1000g, standing and reacting 10 hours, again mixture is put into loft drier dry 2 hours, drying temperature controls at 50 DEG C, take out dry thing after dry and grind, collect the starch powder of grinding, putting it in the hot environment of 150 DEG C makes it fully react, react after 3 hours, reactant is taken out and pours in acetone soln, refilter, again filtration product is washed with water, and filter, finally filtration product is put into the loft drier drying that temperature is 60 DEG C, after dry 2 hours, obtain citrate starch.
Claims (6)
1. a preparation technology for citrate starch, is characterized in that, this preparation technology comprises the steps:
(1) get a certain amount of citric acid, add distilled water, and constantly stir with agitator, citric acid is dissolved in water;
(2) pour a certain amount of NaOH solution again into, the pH value of regulator solution is between 3-4;
(3), under continuous agitation condition, add water chestnut starch, standing and reacting for some time;
(4) again mixture is put into loft drier drying, after dry, take out dry thing;
(5) drier thing is ground, collect powder, put into high temperature and make it fully react;
(6) reactant is poured in acetone soln, refilters,
(7) again filtrate is washed with water, and again filter;
(8) filtrate is carried out drying, obtain citrate starch.
2. the preparation technology of a kind of citrate starch according to claim 1, is characterized in that, step (2) in, the solubility of NaOH solution is 3-4mol/mL.
3. the preparation technology of a kind of citrate starch according to claim 1, is characterized in that, step (3) in, the standing and reacting time is 5-10 hour.
4. the preparation technology of a kind of citrate starch according to claim 1, is characterized in that, step (4) in, drying temperature is 50-60 DEG C, and time of drying controls at 1-2 hour.
5. the preparation technology of a kind of citrate starch according to claim 1, is characterized in that, step (5) in, hot environment controls at 140-150 DEG C, and the reaction times is 3-5 hour.
6. the preparation technology of a kind of citrate starch according to claim 1, is characterized in that, step (8) in, drying temperature is between 40-60 DEG C, and time of drying is 2-3 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933458.7A CN105348400A (en) | 2015-12-15 | 2015-12-15 | Citrate starch and preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510933458.7A CN105348400A (en) | 2015-12-15 | 2015-12-15 | Citrate starch and preparing method thereof |
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| CN105348400A true CN105348400A (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510933458.7A Pending CN105348400A (en) | 2015-12-15 | 2015-12-15 | Citrate starch and preparing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981981A (en) * | 2019-11-25 | 2020-04-10 | 广西大学 | Starch citrate ester, preparation method thereof and application thereof in corrosion prevention and scale inhibition |
| CN111234042A (en) * | 2020-01-17 | 2020-06-05 | 南京财经大学 | Preparation method of citric acid modified starch with anti-digestion characteristic |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161707A (en) * | 2011-05-27 | 2011-08-24 | 黑龙江北大荒斯达奇生物科技有限公司 | Method for preparing citric acid esterified starch |
| KR101507563B1 (en) * | 2013-10-15 | 2015-04-08 | 안동대학교 산학협력단 | Production method of indigestible citrate cross-linked starch |
-
2015
- 2015-12-15 CN CN201510933458.7A patent/CN105348400A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161707A (en) * | 2011-05-27 | 2011-08-24 | 黑龙江北大荒斯达奇生物科技有限公司 | Method for preparing citric acid esterified starch |
| KR101507563B1 (en) * | 2013-10-15 | 2015-04-08 | 안동대학교 산학협력단 | Production method of indigestible citrate cross-linked starch |
Non-Patent Citations (1)
| Title |
|---|
| 王恺等: "高取代度柠檬酸酯淀粉制备研究", 《粮食与油脂》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981981A (en) * | 2019-11-25 | 2020-04-10 | 广西大学 | Starch citrate ester, preparation method thereof and application thereof in corrosion prevention and scale inhibition |
| CN110981981B (en) * | 2019-11-25 | 2021-11-26 | 广西大学 | Starch citrate ester, preparation method thereof and application thereof in corrosion prevention and scale inhibition |
| CN111234042A (en) * | 2020-01-17 | 2020-06-05 | 南京财经大学 | Preparation method of citric acid modified starch with anti-digestion characteristic |
| WO2021143108A1 (en) * | 2020-01-17 | 2021-07-22 | 南京财经大学 | Preparation method for citric acid modified starch with anti-digestive properties |
| US11453730B2 (en) | 2020-01-17 | 2022-09-27 | Nanjing University Of Finance And Economics | Preparation method of citric acid modified starch with digestion-resistant property |
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Application publication date: 20160224 |
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