CN105001346A - Production method for esterified modified starch - Google Patents
Production method for esterified modified starch Download PDFInfo
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- CN105001346A CN105001346A CN201510527116.5A CN201510527116A CN105001346A CN 105001346 A CN105001346 A CN 105001346A CN 201510527116 A CN201510527116 A CN 201510527116A CN 105001346 A CN105001346 A CN 105001346A
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Abstract
The invention discloses a production method for esterified modified starch and aims at providing the production method for modified starch, which can be used for increasing the content of acetyl of the esterified modified starch, the stability of products and the whiteness of the starch. The production method comprises the following steps of firstly, preparing raw starch slurry; secondly, adding an acidity regulator and adjusting the pH value of the slurry to be 4.0 to 5.0, adding composite phosphate which accounts for 2 to 5 percent of the weight of raw starch and stirring for 10 to 20 minutes, regulating the temperature to be 35 to 40DEG C, and carrying out esterification reaction for 1 to 1.5 hours; thirdly, adding a basic catalyst into the raw starch slurry reacted in the second step, regulating the pH value to be 8.0 to 10.0, reducing the temperature to be 25 to 30DEG C, adding a mixed esterifying agent and reacting for 30 to 60 minutes, and regulating the pH value to be 5.5 to 6.0 with a neutralizer to obtain semifinished esterified modified starch; fourthly, washing, centrifuging and drying for controlling the water content to be below 15 percent to obtain finished esterified modified starch.
Description
Technical field
The present invention relates to a kind of production method of esterification modified starch, specifically, be a kind of production method of esterification esterification modified starch, belong to starch technical field.
Background technology
Along with modified starch is functional more and more stronger, insider is more and more higher to its cognition degree, and the market potential of modified starch is increasing.Appropriate starch is added in meat product, water-retentivity and the structural state of goods can be improved, modified starch has carried out physics, enzyme and chemical process process to native starch, change the natural character of starch, increase it functional or introduce new characteristic, thus improve quality product in the application, modified starch significantly can improve retentiveness and the emulsifying property of meat gruel, and meat emulsion product can be made to have good structural state and mouthfeel, its action effect is better than potato ative starch.The cassava modified starch had high temperature, acidity, shearing force and freeze-stable is used in burger is produced, not only increase the quality of product, also be very suitable for novel process to produce, the elasticity of goods, toughness and being knotted property can also be strengthened, improve water conservation, Oil keeping etc.Modified starch can not only occur for food provides structure and the stationary phase of needs, meanwhile, also having some kinds to start provide the function of health care to the mankind and cause people to pay close attention to the appearance of a kind of batching and additive.Food fibre, also known as anti-digestible starches, is a kind of special converted starch.Due to not digested, the absorption of heat can be made to reduce, also can help digest, be added in varieties of food items and increase nourishing function, be applied in the meal meals of diabetic subject particularly desirable.As the modified starch of fat substitute, be a class dextrin, enzymolysis or acidolysis product, replace fat baking, in the food such as meat product, ice-creams, not only there is the texture of fat, the more important thing is the intake reducing body fat, make the dietary structure of the mankind more reasonable.Although the current popularization at home of this series products still has certain difficulty, along with the raising of people's health care consciousness, the health of food will more and more be taken seriously, and the development potentiality of this kind of modified starch is huge.
Composite phosphate is a kind of common dispersion agent, industrial for all fields of national economies such as water treatment, pottery, printing and dyeing, papermaking; The Sodium hexametaphosphate 99 of food grade is used as foodstuff additive, mainly utilizes its dissemination.Also be a kind of water-holding agent, the every field of foodstuff production is widely used in food, the improvement of Food Quality is played an important role, as the effect of the water-retentivity to meat product, gel-strength, yield rate, all has different action effects to grain and oil goods, sea-food etc. in addition.Phosphoric acid salt is the most widely used foodstuff additive in current countries in the world, the phosphoric acid salt totally 8 kinds that current China approved uses, comprise tripoly phosphate sodium STPP, Sodium hexametaphosphate 99, trisodium phosphate, tertiary sodium phosphate, Sodium phosphate dibasic, SODIUM PHOSPHATE, MONOBASIC, sodium acid pyrophosphate, Sodium Acid Pyrophosphate, the variation that these materials can contribute to food kind is added in food, improve its color, shape, keep freshness and the quality of food, and meet the demand of machining process, be very important quality improver in food.Composite phosphate is exactly two or more the phosphatic general designation applied in food-processing.Also be a kind of buffer reagent simultaneously, play shock absorption in the solution, the wide fluctuations of pH can be avoided, keep the stability of system in the late into the night.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of production method that can improve the esterification modified starch of the whiteness of the acetyl content of esterification modified starch, the stability of product and starch.
For solving the problem, the object of the invention is such:
A production method for esterification modified starch, comprises following method successively:
1) making concentration of slurry with cassava or native cornstarch and water is that the ative starch of 35 ~ 40wt% is starched;
2) to step 1) ative starch slurry add acidity regulator and regulate slurry pH value 4.0 ~ 5.0, add ative starch weight 2 ~ 5% composite phosphate and stir 10-20 minute, and temperature is adjusted to 35 ~ 40 DEG C, esterification 1 ~ 1.5 hour;
3) to step 2) reacted ative starch slurry adds basic catalyst adjust ph 8.0 ~ 10.0, temperature is reduced to 25 ~ 30 DEG C, add mixed ester agent reaction 30 ~ 60 minutes, with neutralizing agent, pH value is adjusted to 5.5 ~ 6.0, obtain work in-process esterification and become starch;
4) by step 3) ative starch plasm scouring after neutralization, centrifugal, dry, moisture controlled is got product esterification modified starch below 15%.
Further, the production method of above-mentioned esterification modified starch, step 2) described in composite phosphate be any two or more combination in tripoly phosphate sodium STPP or Sodium hexametaphosphate 99 or trisodium phosphate or tertiary sodium phosphate or Sodium phosphate dibasic or SODIUM PHOSPHATE, MONOBASIC.
Further, the production method of above-mentioned esterification modified starch, step 2) described in acidity regulator be hydrochloric acid.
Further, the production method of above-mentioned esterification modified starch, step 3) described in basic catalyst be aqueous sodium hydroxide solution or the aqueous sodium carbonate of 3 ~ 5wt%.
Further, the production method of above-mentioned esterification modified starch, step 3) described in mixed ester agent be the mixture of diacetyl oxide and hexanodioic acid, add-on is ative starch weight 3 ~ 6%.
Further, the production method of above-mentioned esterification modified starch, step 3) described in neutralizing agent be hydrochloric acid or sulfuric acid.
Compared with prior art, technical scheme provided by the invention is each processing condition fastidious strictly, and adopt composite phosphate to carry out elementary esterification, then carry out acetylization reaction, the acetyl content of the starch of gained can improve more than 20 ~ 30%, and whiteness can improve 2 ~ 3%.Contained phosphate radical in modified starch; major cause is that first starch introduce the stronger phosphate groups of wetting ability; add the avidity of starch molecule and water; from the reaction that improve starch and water-soluble sub-ethanoyl estranged and starch, modified starch is made to have obvious effect in water-retentivity, gel-strength.
Embodiment
Explain the present invention further below in conjunction with specific embodiment, but embodiment does not limit in any form to the present invention.
Embodiment 1
The production method of a kind of esterification modified starch provided by the invention, comprises following method successively:
1) making concentration of slurry with cassava ative starch and water is that the ative starch of 35 ~ 40wt% is starched;
2) to step 1) ative starch slurry add hydrochloric acid and regulate slurry pH value 4.0 ~ 5.0, add ative starch weight 2% tripoly phosphate sodium STPP, 2% Sodium hexametaphosphate 99 stir 20 minutes, and temperature is adjusted to 35 ~ 40 DEG C, esterification 1.5 hours;
3) to step 2) reacted ative starch slurry adds 3wt% acid sodium aqueous solution adjust ph 8.0 ~ 10.0, temperature is reduced to 25 ~ 30 DEG C, add ative starch weight 4% diacetyl oxide, 0.5% hexanodioic acid reacts 60 minutes, with hydrochloric acid, pH value is adjusted to 5.5 ~ 6.0, obtains work in-process esterification and become starch;
4) by step 3) ative starch plasm scouring after neutralization, centrifugal, dry, moisture controlled is got product esterification modified starch below 15%.
Embodiment 2
The production method of another kind of esterification modified starch provided by the invention, comprises following method successively:
1) making concentration of slurry with native cornstarch and water is that the ative starch of 35 ~ 40wt% is starched;
2) to step 1) ative starch slurry add hydrochloric acid and regulate slurry pH value 4.0 ~ 5.0, add ative starch weight 1% trisodium phosphate, 3% tertiary sodium phosphate stir 10 minutes, and temperature is adjusted to 35 ~ 40 DEG C, esterification 1 hour;
3) to step 2) reacted ative starch slurry adds 5wt% acid sodium aqueous solution adjust ph 8.0 ~ 10.0, temperature is reduced to 25 ~ 30 DEG C, add ative starch weight 2% diacetyl oxide, 0.2% hexanodioic acid reacts 40 minutes, with sulfuric acid, pH value is adjusted to 5.5 ~ 6.0, obtains work in-process esterification and become starch;
4) by step 3) ative starch plasm scouring after neutralization, centrifugal, dry, moisture controlled is got product esterification modified starch below 15%.
Embodiment 3
The production method of another kind of esterification modified starch provided by the invention, comprises following method successively:
1) making concentration of slurry with cassava or native cornstarch and water is that the ative starch of 35 ~ 40wt% is starched;
2) to step 1) ative starch slurry add hydrochloric acid regulate slurry pH value 4.0 ~ 5.0, add ative starch weight 1% trisodium phosphate, 1% tertiary sodium phosphate, 1% Sodium phosphate dibasic, 1% SODIUM PHOSPHATE, MONOBASIC stirs 10-20 minute, and temperature is adjusted to 35 ~ 40 DEG C, esterification 1.2 hours;
3) to step 2) reacted ative starch slurry adds 3wt% acid sodium aqueous solution adjust ph 8.0 ~ 10.0, temperature is reduced to 25 ~ 30 DEG C, add ative starch weight 3% diacetyl oxide, 0.3% hexanodioic acid reaction response 30 ~ 60 minutes, with hydrochloric acid, pH value is adjusted to 5.5 ~ 6.0, obtains work in-process esterification and become starch;
4) by step 3) ative starch plasm scouring after neutralization, centrifugal, dry, moisture controlled is got product esterification modified starch below 15%.
In order to advantage of the present invention is better described, the corresponding physico-chemical property of starch that providing the application below provides detects data
| Project | Index |
| Moisture (%) | 13.1 |
| Whiteness (%) | 92.6 |
| Acetyl content (g/100g) | 0.56 |
| Peak viscosity (BU, 6%) | 1665 |
Claims (6)
1. a production method for esterification modified starch, is characterized in that, comprises following method successively:
1) making concentration of slurry with cassava or native cornstarch and water is that the ative starch of 35 ~ 40wt% is starched;
2) to step 1) ative starch slurry add acidity regulator and regulate slurry pH value 4.0 ~ 5.0, add ative starch weight 2 ~ 5% composite phosphate and stir 10-20 minute, and temperature is adjusted to 35 ~ 40 DEG C, esterification 1 ~ 1.5 hour;
3) to step 2) reaction after ative starch slurry add basic catalyst adjust ph 8.0 ~ 10.0, temperature is reduced to 25 ~ 30 DEG C, add mixed ester agent reaction 30 ~ 60 minutes, with neutralizing agent, pH value is adjusted to 5.5 ~ 6.0, obtain work in-process esterification and become starch;
4) by step 3) ative starch plasm scouring after neutralization, centrifugal, dry, moisture controlled is got product esterification modified starch below 15%.
2. the production method of esterification modified starch according to claim 1, is characterized in that: step 2) described in composite phosphate be any two or more combination in tripoly phosphate sodium STPP or Sodium hexametaphosphate 99 or trisodium phosphate or tertiary sodium phosphate or Sodium phosphate dibasic or SODIUM PHOSPHATE, MONOBASIC.
3. the production method of esterification modified starch according to claim 1, is characterized in that: step 2) described in acidity regulator be hydrochloric acid.
4. the production method of esterification modified starch according to claim 1, is characterized in that: step 3) described in basic catalyst be aqueous sodium hydroxide solution or the aqueous sodium carbonate of 3 ~ 5wt%.
5. the production method of esterification modified starch according to claim 1, is characterized in that: step 3) described in mixed ester agent be the mixture of diacetyl oxide and hexanodioic acid, add-on is ative starch weight 3 ~ 6%.
6. the production method of esterification modified starch according to claim 1, is characterized in that: step 3) described in neutralizing agent be hydrochloric acid or sulfuric acid.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107129700A (en) * | 2017-05-13 | 2017-09-05 | 厦门壳氏新材料科技有限公司 | A kind of warpage preventing method of vegetable fibre board |
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| CN101362804A (en) * | 2008-09-28 | 2009-02-11 | 东北林业大学 | Acetyl starch with high degree of substitution and preparation method thereof |
| CN101698710A (en) * | 2009-10-29 | 2010-04-28 | 广西武鸣县安宁淀粉有限责任公司 | Method for producing modified starch |
| CN101967199A (en) * | 2010-02-03 | 2011-02-09 | 内蒙古奈伦农业科技股份有限公司 | Composite modified starch, preparation method and application thereof |
| CN102408489A (en) * | 2011-07-28 | 2012-04-11 | 广西农垦明阳生化集团股份有限公司 | Preparation method of compound modified starch |
| CN103214588A (en) * | 2013-05-03 | 2013-07-24 | 甘肃圣大方舟马铃薯变性淀粉有限公司 | Preparation method of crosslinked-acetylated-succinate ternary composite modified starch |
| CN103819697A (en) * | 2014-02-28 | 2014-05-28 | 廖乐隽 | Preparation method of corn modified starch |
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2015
- 2015-08-26 CN CN201510527116.5A patent/CN105001346A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362804A (en) * | 2008-09-28 | 2009-02-11 | 东北林业大学 | Acetyl starch with high degree of substitution and preparation method thereof |
| CN101698710A (en) * | 2009-10-29 | 2010-04-28 | 广西武鸣县安宁淀粉有限责任公司 | Method for producing modified starch |
| CN101967199A (en) * | 2010-02-03 | 2011-02-09 | 内蒙古奈伦农业科技股份有限公司 | Composite modified starch, preparation method and application thereof |
| CN102408489A (en) * | 2011-07-28 | 2012-04-11 | 广西农垦明阳生化集团股份有限公司 | Preparation method of compound modified starch |
| CN103214588A (en) * | 2013-05-03 | 2013-07-24 | 甘肃圣大方舟马铃薯变性淀粉有限公司 | Preparation method of crosslinked-acetylated-succinate ternary composite modified starch |
| CN103819697A (en) * | 2014-02-28 | 2014-05-28 | 廖乐隽 | Preparation method of corn modified starch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107129700A (en) * | 2017-05-13 | 2017-09-05 | 厦门壳氏新材料科技有限公司 | A kind of warpage preventing method of vegetable fibre board |
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