CN101456915A - Method for preparing pregelatinization-acid hydrolysis-esterification ternary compound modified starch and use thereof - Google Patents
Method for preparing pregelatinization-acid hydrolysis-esterification ternary compound modified starch and use thereof Download PDFInfo
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- CN101456915A CN101456915A CNA2009100640261A CN200910064026A CN101456915A CN 101456915 A CN101456915 A CN 101456915A CN A2009100640261 A CNA2009100640261 A CN A2009100640261A CN 200910064026 A CN200910064026 A CN 200910064026A CN 101456915 A CN101456915 A CN 101456915A
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Abstract
The invention relates to a preparation method for pregelatinization-acidolysis-esterification ternary composite modified starch and application thereof. The preparation method comprises the following steps: a, dissolving 2g to 4g of an esterification reagent in 120mL to 150mL of anhydrous alcohol with the temperature of 25 to 40 DEG C, then adding 0.05g to 0.15g of 38 mass percent hydrochloric acid, and adding 15mL to 30mL of water; b, taking 100g of starch counted on a dry basis, adding the starch into the solvent prepared in the step a, and stirring the starch evenly in the solvent to obtain even slurry; c, carrying out the moderate temperature exsolution of the even slurry prepared in the step b, simultaneously carrying out pregelatinization and acidolysis, and setting the exsolution temperature between 55 and 80 DEG C and the exsolution time between 0.5h and 2h; and then carrying out a high temperature reaction, carrying out the pregelatinization-acidolysis-esterification action at the high temperature, and setting the reaction temperature between 120 and 160 DEG C and the reaction time between 2h and 5h; and d, cooling down and crushing the product obtained in the step c so as to obtain the modified starch simultaneously having the multiple characteristics of pregelatinized starch, acidified starch and esterified starch.
Description
Technical field
The present invention relates to technical field of modified starch, relate to the preparation method and the application thereof of a kind of pre-gelatinization-acidolysis-esterification ternary compound modified starch specifically.
Technical background
Starch stearate belongs to a kind of longer chain fatty acid starch ester, behind the hydroxyl in the hydrophobic long-chain fat acid moieties substituted starch molecule, make product have hydrophobicity and wetting ability simultaneously, can be used as emulsifying agent, be applied in fields such as food, medicine, material, household chemicals.About the report of starch stearate, there has been the starch that adopts different hydrolysis degrees to carry out the report of high temperature esterification as raw material and lipid acid abroad.Domestic have the Zhang Yanping of Southern Yangtze University to carry out the report that acidolysis and esterification prepare treated starch simultaneously, applies for a patent.But adopt pre-gelatinization-acidolysis-esterification ternary complex reaction to prepare modified starch at present and yet there are no the related data report.
Summary of the invention
Purpose of the present invention is just at the preparation method of the fatty acid starch ester of prior art and product performance and the preparation method and the application thereof of a kind of pre-gelatinization-acidolysis-esterification ternary compound modified starch are provided.The present invention organically combines pre-gelatinization effect, acid hydrolysis and the esterification to starch, makes product possess the characteristic of pre-gelatinized starch, acidified starch and esterification starch simultaneously, and has simplified preparation technology.
Purpose of the present invention can realize by following technique measures:
The preparation method of pre-gelatinization-acidolysis of the present invention-esterification ternary compound modified starch may further comprise the steps:
A, to get temperature that esterifying agent 2g-4g is dissolved in be among dehydrated alcohol 120mL-150mL of 25 ℃-40 ℃, adds the hydrochloric acid 0.05g-0.15g of mass fraction 38% afterwards, adds entry 15mL-30mL again;
B, get the starch 100g that butt calculates, and it is slowly joined in a step solvent prepared, stir the even slurry that obtains;
Warm precipitation during c, the even slurry that the b step is prepared adopt carries out pre-gelatinization and acidolysis simultaneously, and the temperature of precipitation is 55 ℃-80 ℃, and the precipitation time is 0.5h-2h; Carry out pyroreaction then, at high temperature carry out pre-gelatinization, acidolysis and esterification, the temperature of reaction is 120 ℃-160 ℃, and the reaction times is 2h-5h;
D, promptly make after c step products therefrom cooled off, pulverizes possess pre-gelatinized starch simultaneously, modified starch---the finished product starch stearate of acidified starch, esterification starch multiple characteristic.
Starch material described in the present invention can be any one in W-Gum, potato starch or the wheat starch; Described esterifying agent is stearic acid, Palmiticacid, lauric acid, myristic acid, palmitinic acid, oleic acid, linolic acid or eicosanoic acid.
Pre-gelatinization-acidolysis-esterification ternary compound modified starch that the present invention is prepared---starch stearate can be used as food emulsifier, microcapsule wall material or artificial whipping cream.
Beneficial effect of the present invention is as follows:
The present invention has improved the preparation technology of existing preparation fatty acid starch ester.Adopted in the past and starch is smeared behind the lipid acid precipitation add water again and regulate moisture, its moisture adjustment need expend certain hour, and the present invention is by suitably having increased the direct adding of water the hot ethanol of consumption, make starch when stirring with ethanol, the distribution of moisture in starch also relatively evenly reduced the production process of water balance; The precipitation temperature was 30 ℃-50 ℃ in the past, starch can not get pre-gelatinization effect, and the precipitation temperature that the present invention adopts is 55 ℃ of-80 ℃ of precipitations, in precipitation, also starch is produced pre-gelatinization effect, the alcoholic acid existence also has certain restraining effect to the swelling of starch granules, and it is even to help the pre-gelatinization of starch granules, and this pre-gelatinization effect helps the infiltration acidolysis of acidolysis agent and the high temperature esterification of postorder, thereby effectively improve the substitution value of product, strengthen the emulsifying capacity of product; Will pass through abundant gelatinization earlier because product uses as emulsifying agent, microcapsule wall material, the product of this pre-gelatinization is more prone to than the currently available products gelatinization when using, and uses more convenient.Therefore the present invention has improved the preparation technology of existing fatty acid starch ester, and former technology is easy to implement keeping, and in the time of the little advantage of environmental pollution, has reduced production process, has shortened the production cycle, has improved the performance of product.
Description of drawings
Fig. 1 is preparation technology's synoptic diagram of the present invention.
Embodiment
The present invention is further described below with reference to embodiment:
Embodiment 1
Take by weighing the 3g stearic acid, be dissolved in 30 ℃ of dehydrated alcohols of 120mL, adding mass fraction (content of hydrochloric acid) is 38% hydrochloric acid 0.05g, the water that adds the 25mL amount again, slowly add 100g then through exquisite isolating wheat A starch (butt quality), and constantly evenly stir, obtain even slurry; To warm precipitation in the even slurry employing, carry out pre-gelatinization and acidolysis simultaneously, the temperature of precipitation is 80 ℃, and intermittently stirs under 80 ℃ of conditions, the precipitation time is 1h; Carry out pyroreaction then, at high temperature carry out pre-gelatinization, acidolysis and esterification, the temperature of reaction is 150 ℃, and the reaction times is 3h; Cool off then, pulverize, pack, starch stearate gets product.
Table 1: massfraction is the comparison through emulsifying capacity after the gelatinization of 1% ative starch and starch stearate
| Substitution value | 0 | 0.0070 | 0.0105 | 0.0138 |
| Emulsifying property/% | 0 | 15 | 35 | 40 |
| Emulsifying stability/% | 0 | 13 | 33 | 39 |
Embodiment 2
Take by weighing 4g Palmiticacid, be dissolved in 30 ℃ of dehydrated alcohols of 150mL, adding mass fraction (content of hydrochloric acid) is 38% hydrochloric acid 0.1g, adds the water of 30mL amount again, slowly adds 100g (butt quality) starch then, stirs, and obtains even slurry; Slurry intermittently stirred under 80 ℃ of conditions remove solvent, carry out pre-gelatinization and acidolysis simultaneously, the precipitation time is 1h; Carry out pyroreaction then, at high temperature carry out pre-gelatinization, acidolysis and esterification, the temperature of reaction is 150 ℃, and the reaction times is 3h; Cool off then, pulverize, pack, the Palmiticacid starch ester gets product.
Table 2 massfraction is the comparison of 15% ative starch and Palmiticacid starch ester breast viscosity
| Substitution value | 0 | 0.0070 | 0.0105 | 0.0138 |
| Viscosity/mPaS | 1000 | 30 | 26 | 22 |
Annotate: temperature adopts the digital viscosity apparatus of NDJ-5S to measure it through the starch fluid viscosity after the abundant gelatinization for 30 ℃
Embodiment 3
Take by weighing 4g oleic acid, be dissolved in 30 ℃ of dehydrated alcohols of 150mL, adding mass fraction (content of hydrochloric acid) is 38% hydrochloric acid 0.1g, adds the water of 30mL amount again, slowly adds 100g (butt quality) starch then, stirs, and obtains even slurry; Slurry intermittently stirred under 80 ℃ of conditions remove solvent, carry out pre-gelatinization and acidolysis simultaneously, the precipitation time is 1h; Carry out pyroreaction then, at high temperature carry out pre-gelatinization, acidolysis and esterification, the temperature of reaction is 150 ℃, and the reaction times is 3h; Cool off then, pulverize, pack, the oleic acid starch ester gets product.
Table 3 prepares powdery oil with the oleic acid starch ester as microcapsule wall material, and the embedding rate that product stored under 25 ℃ of lucifuge conditions in month changes
| The storage time/sky | 0 | 7 | 14 | 21 | 28 |
| Embedding rate/% | 72.3％ | 70.8％ | 67.7％ | 60.3％ | 58.1％ |
Claims (4)
1, the preparation method of a kind of pre-gelatinization-acidolysis-esterification ternary compound modified starch, it is characterized in that: this preparation method may further comprise the steps:
A, getting esterifying agent 2g-4g, to be dissolved in temperature be among dehydrated alcohol 120mL-150mL of 25 ℃-40 ℃, adds the hydrochloric acid 0.05g-0.15g of mass fraction 38% afterwards, adds entry 15mL-30mL again;
B, get the starch 100g that butt calculates, and it is slowly joined in a step solvent prepared, stir the even slurry that obtains;
Warm precipitation during c, the even slurry that the b step is prepared adopt carries out pre-gelatinization and acidolysis simultaneously, and the temperature of precipitation is 55 ℃-80 ℃, and the precipitation time is 0.5h-2h; Carry out pyroreaction then, at high temperature carry out pre-gelatinization, acidolysis and esterification, the temperature of reaction is 120 ℃-160 ℃, and the reaction times is 2h-5h;
D, promptly make after c step products therefrom cooled off, pulverizes possess pre-gelatinized starch simultaneously, the modified starch of acidified starch, esterification starch multiple characteristic.
2, preparation method according to claim 1 is characterized in that: described starch material can be any one in W-Gum, potato starch or the wheat starch.
3, preparation method according to claim 1 is characterized in that: described esterifying agent is stearic acid, Palmiticacid, lauric acid, myristic acid, palmitinic acid, oleic acid, linolic acid or eicosanoic acid.
4, a kind of application as the prepared pre-gelatinization-acidolysis-esterification ternary compound modified starch of claim 1, it is characterized in that: described modified starch can be used as food emulsifier, microcapsule wall material or artificial whipping cream.
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| CN103709259A (en) * | 2013-12-24 | 2014-04-09 | 武汉理工大学 | Method for preparing acid-modified starch cationic slow-breaking slow-setting asphalt emulsifier |
| CN104629694A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | Drilling fluid foaming agent and preparation method thereof |
| US9540810B2 (en) | 2012-10-23 | 2017-01-10 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
| US9802866B2 (en) | 2005-06-09 | 2017-10-31 | United States Gypsum Company | Light weight gypsum board |
| US9828441B2 (en) | 2012-10-23 | 2017-11-28 | United States Gypsum Company | Method of preparing pregelatinized, partially hydrolyzed starch and related methods and products |
| US9840066B2 (en) | 2005-06-09 | 2017-12-12 | United States Gypsum Company | Light weight gypsum board |
| US10399899B2 (en) | 2012-10-23 | 2019-09-03 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
| CN112715925A (en) * | 2021-01-25 | 2021-04-30 | 吉林省杞参食品有限公司 | Starch and preparation method thereof |
| US11306028B2 (en) | 2005-06-09 | 2022-04-19 | United States Gypsum Company | Light weight gypsum board |
| US11338548B2 (en) | 2005-06-09 | 2022-05-24 | United States Gypsum Company | Light weight gypsum board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH658663A5 (en) * | 1984-02-01 | 1986-11-28 | Nestle Sa | PROCESS FOR THE PREPARATION OF A STARCH DISPERSIBLE IN BOILING WATER. |
| FI116142B (en) * | 2003-09-11 | 2005-09-30 | Kemira Oyj | The esterification process |
| CN100334115C (en) * | 2005-10-12 | 2007-08-29 | 江南大学 | Process for preparing modified composite denatured starch by microwave acidiolysis and esterification |
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| US10406779B2 (en) | 2005-06-09 | 2019-09-10 | United States Gypsum Company | Light weight gypsum board |
| US11884040B2 (en) | 2005-06-09 | 2024-01-30 | United States Gypsum Company | Light weight gypsum board |
| US11338548B2 (en) | 2005-06-09 | 2022-05-24 | United States Gypsum Company | Light weight gypsum board |
| US9802866B2 (en) | 2005-06-09 | 2017-10-31 | United States Gypsum Company | Light weight gypsum board |
| US11306028B2 (en) | 2005-06-09 | 2022-04-19 | United States Gypsum Company | Light weight gypsum board |
| US9840066B2 (en) | 2005-06-09 | 2017-12-12 | United States Gypsum Company | Light weight gypsum board |
| US10407345B2 (en) | 2005-06-09 | 2019-09-10 | United States Gypsum Company | Light weight gypsum board |
| US9828441B2 (en) | 2012-10-23 | 2017-11-28 | United States Gypsum Company | Method of preparing pregelatinized, partially hydrolyzed starch and related methods and products |
| US10399899B2 (en) | 2012-10-23 | 2019-09-03 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
| US10464847B2 (en) | 2012-10-23 | 2019-11-05 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
| US10875935B2 (en) | 2012-10-23 | 2020-12-29 | United States Gypsum Company | Method of preparing pregelatinized, partially hydrolyzed starch and related methods and products |
| US11135818B2 (en) | 2012-10-23 | 2021-10-05 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
| US11168030B2 (en) | 2012-10-23 | 2021-11-09 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
| US9540810B2 (en) | 2012-10-23 | 2017-01-10 | United States Gypsum Company | Pregelatinized starch with mid-range viscosity, and product, slurry and methods related thereto |
| CN104629694A (en) * | 2013-11-08 | 2015-05-20 | 中国石油天然气股份有限公司 | Drilling fluid foaming agent and preparation method thereof |
| CN103709259A (en) * | 2013-12-24 | 2014-04-09 | 武汉理工大学 | Method for preparing acid-modified starch cationic slow-breaking slow-setting asphalt emulsifier |
| CN112715925A (en) * | 2021-01-25 | 2021-04-30 | 吉林省杞参食品有限公司 | Starch and preparation method thereof |
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