CN101891832A - New method for producing oxidized starch in alkali-free homogeneous phase way - Google Patents
New method for producing oxidized starch in alkali-free homogeneous phase way Download PDFInfo
- Publication number
- CN101891832A CN101891832A CN 201010238449 CN201010238449A CN101891832A CN 101891832 A CN101891832 A CN 101891832A CN 201010238449 CN201010238449 CN 201010238449 CN 201010238449 A CN201010238449 A CN 201010238449A CN 101891832 A CN101891832 A CN 101891832A
- Authority
- CN
- China
- Prior art keywords
- starch
- oxidized starch
- homogeneous phase
- alkali
- new method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention relates to a new method for producing oxidized starch in an alkali-free homogeneous phase way. The method comprises the following steps of: uniformly mixing starch and solution of oxidant and solution of catalyst in a stirring machine; adding the uniformly-mixed raw materials into a hopper of an extrusion bulking machine, adjusting the rotating speed of a screw to be 5 to 800 rpm, uniformly feeding the materials and performing extrusion; and drying the extrudate at the temperature of between 30 and 105 DEG C until the moisture content is 11 to 14 percent (w/w), and crushing to obtain the oxidized starch. The method solves the problem that materials are not uniformly mixed when the oxidized starch is prepared by a dry method and further solves the problems that due to high content of SO42<->, waste water is difficult to treat when the oxidized starch is prepared by a wet method, and materials are not uniformly mixed when the oxidized starch is prepared by a dry method, and the like. The new method for producing the oxidized starch in the alkali-free homogeneous phase way has the advantages of low energy consumption, high efficiency, continuity, homogeneous phase, and environmental protection, simple process and easy popularization and application.
Description
(1) technical field
A kind of low power consuming that The present invention be directed to the inhomogeneous and reaction problem such as insufficient of present dried preparation Sumstar 190 batch mixing and invent, efficient, continuously, homogeneous phase, environmental protection, operation simple oxidation starch producing method.
(2) background technology
Starch is natural polymeric carbohydrate, is a kind of abundant recyclability industrial raw material.Many hydroxyls are arranged on the starch molecule, under the proper temperature condition, can water-swelling and gelatinization, starch has certain viscosity and clinging power, industrial have more widely use.Yet natural ative starch is because of its effect of the defective effect on its structure and the performance.Sumstar 190 is one of modified starch principal item.Compare with native starch, advantage such as Sumstar 190 has good fluidity, viscosity stability height, perviousness is strong, cohesive force is good has purposes widely in weaving, papermaking, foodstuffs industry.
The industrial method for preparing Sumstar 190 mainly contains two kinds of wet method and dry method.The wet processing advantage is chemical reagent and the abundant mixing of starch energy, constant product quality, production control is easy, but also open defect is arranged, and promptly the water of productive use amount is big, this part water finally becomes COD and the high unmanageable sewage of salt content, cause serious environment pollution, and the explained hereafter long flow path, when dry, the energy consumption height, the production cost height.The dry process advantage is: solvent adds less, pollutions is little, flow process is short, energy consumption is low, equipment is simple, but also has shortcoming, promptly starch mix with chemical reagent inhomogeneous, react insufficient, be restricted in the application.
Extruder is extrusion machine, forcing machine again, comprises single screw rod and twin screw.Extruding and puffing technology is collection high temperature, high pressure, high-shear, high efficient mixed, expanded etc. is that the new and high technology of one, its complete processing have low cost, characteristics of high efficiency, in the application of food and relevant industries more and more widely.
(3) summary of the invention
The technical issues that need to address of the present invention are: solve dried preparation Sumstar 190 batch mixing problem of non-uniform; Improve in method and produce Sumstar 190 dissolving index, reduce viscosity and retrogradation value; Make the production process power consumption of Sumstar 190 low, reaction evenly, not waste discharge, efficient, serialization.
The inventive method is as follows:
Earlier according to the water content (w/w) of raw starch itself, calculate the quality of required water when the starch water content is adjusted into 16～40% (w/w), take by weighing water, be used for catalyst-solvent or dilute oxidizing agent solution.
Described oxygenant is 20～40% (w/w) H
2O
2Solution or contain available chlorine 5～30% (w/w) chlorine bleach liquor, addition is 0.2～7% (w/w) of starch dry weight.When using H
2O
2During for oxygenant, catalyzer is one or both mixing in ferrous salt, the mantoquita, and addition is 0.0005%～0.05% (w/w) of starch dry weight.When using clorox, do not use catalyzer as oxygenant.
Extruder is preheated to specified temperature (80～200 ℃).
In stirrer that starch and oxidizing agent solution and catalyst solution thorough mixing is even, the raw material of mixing is joined in the extruder hopper, the adjustment screw speed is 5～800rpm, evenly feeding carries out extruding puffing.Above-mentioned extrudate is dried to moisture content 11%～14% (w/w), pulverizes under 30～105 ℃ of conditions, promptly get the Sumstar 190 product.Sumstar 190 dissolving index 〉=97% (w/w) of this method preparation, peak viscosity (10%, w/w)≤6cp, viscosity disintegration value (95 ℃, 80min)≤0.05cp, the thermally-stabilised Sumstar 190 that all prepares of retrogradation value (4 ℃, 3 days) above present all methods of reporting.
In common dry technology for production, starch accounts for whole raw-material ratios generally at 60～90% (w/w), oxygenant and catalyzer account for 1%～10% (w/w), and a large amount of exsiccant starch and a spot of oxygenant, catalyzer are difficult to reach the uniform mixing of molecular level.Make material under comparatively high temps, become molten state among the present invention, help the uniform mixing of material molecular level.The simultaneous temperature height has been accelerated speed of response, has shortened the reaction times.
It is low that the present invention has overcome in the wet method Sumstar 190 yield, waste water COD and salt content height, and it is difficult to handle, energy consumption height when dry, shortcomings such as production cost height.Having solved the starch that exists in the common dry process simultaneously mixes inhomogeneous with chemical reagent; React problem such as insufficient.
(4) embodiment
Taking by weighing water content below is 11.00% (w/w) W-Gum raw material 11.236kg (butt is 10.0kg) explanation the present invention that gives an actual example, and is 11.00% (w/w) and following example but the present invention is not limited to the starch material water content.
Embodiment 1
Calculate the quality 3.9kg of required water when the starch water content is adjusted into 34% (w/w); Extruder is preheated to specified temperature (120 ℃); Take by weighing 9.14g FeSO
47H
2O (FeSO
4Addition is 0.05%) and 30% hydrogen peroxide 250g, with FeSO
47H
2Each the water dissolution dilution of O and 30% hydrogen peroxide with 1.95kg.In stirrer with starch and FeSO
47H
2O solution and hydrogen peroxide thorough mixing are even, and the raw material of mixing is joined in the extruder hopper, and the adjustment screw speed is 100rpm, and evenly feeding carries out extruding puffing.The air seasoning under 80 ℃ of conditions of above-mentioned extrudate is promptly got the Sumstar 190 product to moisture content 11%～14% (w/w), pulverizing.Measuring every index is: carboxyl-content 0.781% (w/w); Carbonyl content 0.359% (w/w); Dissolving index 97.31% (w/w); Retrogradation value (4 ℃, 3 days) 6.26, and peak viscosity (10%, w/w) be 5.99cp, viscosity disintegration value (95 ℃, 80min) is 0.02cp.
Embodiment 2
Calculate the quality 2.75kg of required water when the starch water content is adjusted into 28.5% (w/w); Extruder is preheated to specified temperature (140 ℃); Take by weighing 5.49g FeSO
47H
2O (FeSO
4Addition is 0.03%) and 30% hydrogen peroxide 300g, with FeSO
4.7H
2O and 30% hydrogen peroxide each with the dilution of the water dissolution of 1.375kg, in stirrer with starch and FeSO
47H
2O and hydrogen peroxide thorough mixing are even, and the raw material with mixing joins in the extruder hopper then, and the adjustment screw speed is 30rpm, and evenly feeding carries out extruding puffing.With above-mentioned extrudate air seasoning 12h, pulverizing under 60 ℃ of conditions, promptly get the Sumstar 190 product.Measuring every index is: carboxyl-content 0.856% (w/w); Carbonyl content 0.448% (w/w); Dissolving index 97.54% (w/w); Retrogradation value (4 ℃, 3 days) 6.51; Peak viscosity (10%, w/w) be 5.92cp, viscosity disintegration value (95 ℃, 80min) is 0.01cp.
Embodiment 3
Calculate the quality 1.7kg of required water when the starch water content is adjusted into 22.7% (w/w); Extruder is preheated to specified temperature (160 ℃).(available chlorine is 10%, w/w) 600g, and with the dilution of the water of 0.85kg to take by weighing clorox.In stirrer starch and clorox diluent are mixed, the raw material of mixing is joined in the extruder hopper, the adjustment screw speed is 200rpm, even feeding, carry out extruding puffing,, promptly get the Sumstar 190 product above-mentioned extrudate air seasoning 24h, pulverizing under 40 ℃ of conditions.Measuring every index is: carboxyl-content 0.563% (w/w); Carbonyl content 0.478% (w/w); Dissolving index 97.71% (w/w); Retrogradation value (4 ℃, 3 days) 7.55; Peak viscosity (10%, w/w) be 5.01cp, viscosity disintegration value (95 ℃, 80min) is 0.0014cp.
Embodiment 4
Calculate the quality 1.084kg of required water when the starch water content is adjusted into 18.8% (w/w); Extruder is preheated to specified temperature (180 ℃).Take by weighing 1.83g FeSO
47H
2O (FeSO
4Addition is 0.01%) and 30% hydrogen peroxide 500g, with FeSO
47H
2Each the water dissolution dilution of O and hydrogen peroxide with 0.542kg.In stirrer with starch and FeSO
47H
2O solution and 30% hydrogen peroxide thorough mixing mixing join the raw material of mixing in the extruder hopper, and the adjustment screw speed is 60rpm, and evenly feeding carries out extruding puffing.With above-mentioned extrudate air seasoning 1h, pulverizing under 100 ℃ of conditions, promptly get the Sumstar 190 product then.Measuring every index is: carboxyl-content 0.925% (w/w); Carbonyl content 0.471% (w/w); Dissolving index 99.73% (w/w); Retrogradation value (4 ℃, 3 days) 7.13; Peak viscosity (10%, w/w) be 3.89cp, viscosity disintegration value (95 ℃, 80min) is 0.0028cp.
Claims (4)
1. new method for producing oxidized starch in alkali-free homogeneous phase way, it is characterized in that in stirrer starch and oxidizing agent solution and catalyst solution thorough mixing even, the raw material of mixing is joined in the extruder hopper, the adjustment screw speed is 5～800rpm, evenly feeding carries out extruding puffing; Above-mentioned extrudate is dried to moisture content 11%～14% (w/w), pulverizes and promptly to get Sumstar 190 under 30～105 ℃ of conditions.
2. a kind of new method for producing oxidized starch in alkali-free homogeneous phase way according to claim 1 is characterized in that described oxygenant is 20～40% (w/w) H
2O
2Solution or contain available chlorine 5～30% (w/w) chlorine bleach liquor, addition is 0.2～7% (w/w) of starch dry weight; When using H
2O
2During for oxygenant, catalyzer is one or both mixing in ferrous salt or the mantoquita, and addition is 0.0005%～0.05% (w/w) of starch dry weight; When using clorox, do not use catalyzer as oxygenant.
3. a kind of new method for producing oxidized starch in alkali-free homogeneous phase way according to claim 1 and 2, needing it is characterized in that prior water content (w/w) according to raw starch itself, calculate the quality of required water when the starch water content is adjusted into 16～40% (w/w), take by weighing water, be used for catalyst-solvent or the dilution oxidizing agent solution.
4. a kind of new method for producing oxidized starch in alkali-free homogeneous phase way according to claim 1 is characterized in that earlier extruder being preheated to 80～200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102384493A CN101891832B (en) | 2010-07-22 | 2010-07-22 | New method for producing oxidized starch in alkali-free homogeneous phase way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102384493A CN101891832B (en) | 2010-07-22 | 2010-07-22 | New method for producing oxidized starch in alkali-free homogeneous phase way |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101891832A true CN101891832A (en) | 2010-11-24 |
| CN101891832B CN101891832B (en) | 2012-01-04 |
Family
ID=43101202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102384493A Expired - Fee Related CN101891832B (en) | 2010-07-22 | 2010-07-22 | New method for producing oxidized starch in alkali-free homogeneous phase way |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101891832B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435710A (en) * | 2013-07-26 | 2013-12-11 | 广西大学 | Preparation method of oxidized pregelatinized composite modified starch |
| CN103724440A (en) * | 2013-12-18 | 2014-04-16 | 广西农垦明阳生化集团股份有限公司 | Extrusion modified starch filtrate reducer and preparation method thereof |
| CN105860148A (en) * | 2016-06-21 | 2016-08-17 | 上海东升新材料有限公司 | Starch modifying method |
| CN110128557A (en) * | 2019-05-15 | 2019-08-16 | 河南汇泉生物科技有限公司 | A kind of oxidized starch and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033634A (en) * | 1988-12-27 | 1989-07-05 | 曹堃 | Preparing method for modified corn starch |
| CN1044662A (en) * | 1989-02-02 | 1990-08-15 | 李艺 | A kind of technology of producing oxidized starch glue |
| CN1097766A (en) * | 1993-07-17 | 1995-01-25 | 襄樊职业大学 | The method of preparation of starch oxide by electrochemical |
| WO2008145586A1 (en) * | 2007-05-29 | 2008-12-04 | Vifor (International) Ag | Water-soluble iron-carbohydrate derivative complexes, preparation thereof and medicaments comprising them |
-
2010
- 2010-07-22 CN CN2010102384493A patent/CN101891832B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033634A (en) * | 1988-12-27 | 1989-07-05 | 曹堃 | Preparing method for modified corn starch |
| CN1044662A (en) * | 1989-02-02 | 1990-08-15 | 李艺 | A kind of technology of producing oxidized starch glue |
| CN1097766A (en) * | 1993-07-17 | 1995-01-25 | 襄樊职业大学 | The method of preparation of starch oxide by electrochemical |
| WO2008145586A1 (en) * | 2007-05-29 | 2008-12-04 | Vifor (International) Ag | Water-soluble iron-carbohydrate derivative complexes, preparation thereof and medicaments comprising them |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435710A (en) * | 2013-07-26 | 2013-12-11 | 广西大学 | Preparation method of oxidized pregelatinized composite modified starch |
| CN103435710B (en) * | 2013-07-26 | 2016-01-27 | 广西大学 | A kind of preparation method being oxidized pregelatinated composite modified starch |
| CN103724440A (en) * | 2013-12-18 | 2014-04-16 | 广西农垦明阳生化集团股份有限公司 | Extrusion modified starch filtrate reducer and preparation method thereof |
| CN105860148A (en) * | 2016-06-21 | 2016-08-17 | 上海东升新材料有限公司 | Starch modifying method |
| CN110128557A (en) * | 2019-05-15 | 2019-08-16 | 河南汇泉生物科技有限公司 | A kind of oxidized starch and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101891832B (en) | 2012-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101891832B (en) | New method for producing oxidized starch in alkali-free homogeneous phase way | |
| CN105531419A (en) | A method of producing oxidized or microfibrillated cellulose | |
| CN101456916B (en) | Method for preparing fatty acid starch ester and application | |
| CN107141603A (en) | A kind of degradable environment-friendly material and preparation method thereof | |
| EP3231899A1 (en) | A method and system for the production of a spinning dope composition | |
| CN101240461A (en) | Method for preparing cellulose spinning fluid | |
| CN103435708B (en) | A kind of preparation method of nano amphoteric starch | |
| CN106280514B (en) | A kind of preparation method of plant fiber-based foaming thermoplastic masterbatch | |
| CN102500339B (en) | Reductive spherical cellulose adsorbent containing sulfinyl and preparation method thereof | |
| CN107446060A (en) | A kind of starch ester and preparation method thereof | |
| CN104499371A (en) | High strength impregnation textured paper production process | |
| CN102827294A (en) | Method for producing cationic starch by using homogeneous phase drying method | |
| CN101864184B (en) | Thermoplastic vegetable fiber/starch blending material and preparation method thereof | |
| CN105837696A (en) | Method for preparing succinic acid modified cassava starch by dry method | |
| CN107141820A (en) | The method that cellulose nano-fibrous modified glue powder prepares and should use it to modified pitch | |
| CN104530244B (en) | A kind of graininess cold water solubles modified starch and preparation method thereof | |
| CN106084078A (en) | A kind of method using dry process of preparation of cationic starch | |
| CN109704613B (en) | Preparation method and application of straw-starch-based composite sulfonated water reducing agent | |
| CN102617892A (en) | Method for preparing degradable starch-base plastics | |
| CN101585884B (en) | Processing method for oxidized, degraded and denaturalized starch | |
| CN104356425A (en) | Preparation method for environment-friendly recycled paperboard fiber composite degradable film material | |
| CN111592662B (en) | Preparation method and device of sulfonated-hydroxymethylated modified straw-based water reducing agent | |
| CN114437524A (en) | Preparation method of sugarcane cellulose-based degradable composite material | |
| CN110194806B (en) | Preparation method of cationic starch | |
| CN1075516C (en) | Process for preparing high-viscosity and high-substitution value carboxymethyl amyloether |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140722 |
|
| EXPY | Termination of patent right or utility model |