CN114891129A - Production process and method of cationic starch - Google Patents
Production process and method of cationic starch Download PDFInfo
- Publication number
- CN114891129A CN114891129A CN202210678171.4A CN202210678171A CN114891129A CN 114891129 A CN114891129 A CN 114891129A CN 202210678171 A CN202210678171 A CN 202210678171A CN 114891129 A CN114891129 A CN 114891129A
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- CN
- China
- Prior art keywords
- starch slurry
- mixed
- cationic
- slurry
- mixed starch
- 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.)
- Pending
Links
- 229920002472 Starch Polymers 0.000 title claims abstract description 93
- 235000019698 starch Nutrition 0.000 title claims abstract description 93
- 239000008107 starch Substances 0.000 title claims abstract description 93
- 125000002091 cationic group Chemical group 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000002002 slurry Substances 0.000 claims abstract description 80
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 230000005855 radiation Effects 0.000 claims abstract description 14
- 239000004014 plasticizer Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 240000003183 Manihot esculenta Species 0.000 claims abstract description 10
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 229920001592 potato starch Polymers 0.000 claims abstract description 9
- 238000001291 vacuum drying Methods 0.000 claims abstract description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical group CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 6
- 239000007870 radical polymerization initiator Substances 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 3
- 239000012362 glacial acetic acid Substances 0.000 claims description 3
- 239000003002 pH adjusting agent Substances 0.000 claims 1
- 239000000654 additive Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Classifications
-
- 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
- C08B31/08—Ethers
- C08B31/12—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch
- C08B31/125—Ethers having alkyl or cycloalkyl radicals substituted by heteroatoms, e.g. hydroxyalkyl or carboxyalkyl starch having a substituent containing at least one nitrogen atom, e.g. cationic starch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- 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 is suitable for the technical field of cationic starch production, and particularly relates to a production process and a method of cationic starch, which comprises the following steps: a. selecting cassava starch slurry and potato starch slurry, and mixing the cassava starch slurry and the potato starch slurry together in a ratio of 1: 1; b. putting the mixed starch slurry into a stirring tank, and adding a pH blender into the stirring tank to neutralize the pH value of the mixed starch slurry to 5-6; c. and stirring the mixed starch slurry in the stirring tank, adding a cationic etherifying agent into the mixed starch slurry, and adding a plasticizer into the mixed starch slurry, wherein the mass ratio of the cationic etherifying agent to the mixed starch slurry is 15-20. The mixed starch slurry irradiated by radiation is subjected to vacuum drying at the drying temperature of minus 50 to minus 60 ℃ and the drying pressure of 70 to 90Pa, so that the practical degree of the production process can be improved.
Description
Technical Field
The invention relates to the technical field of cationic starch production, in particular to a production process and a method of cationic starch.
Background
Starch is a natural high-molecular carbohydrate composed of glucose, has two structures of branched chain and straight chain, is widely present in seeds, tubers and fruits of plants, and is a renewable, non-toxic, biodegradable and resource-rich green product. The cationic starch is one of the main varieties of modified starch, has the advantages of good fluidity, high viscosity stability, strong permeability, good binding power and the like compared with natural native starch, and is widely applied in the papermaking industry.
In the existing production process of cationic starch, after various additives are added into starch slurry, the step of vacuum drying of the starch slurry is not carried out, so that the cationic content of the starch slurry is improved.
Disclosure of Invention
The embodiment of the invention aims to provide a production process and a method of cationic starch, aiming at solving the following problems: in the existing production process of cationic starch, after various additives are added into starch slurry, the step of vacuum drying of the starch slurry is not carried out, so that the cationic content of the starch slurry is improved.
In order to achieve the purpose, the invention provides the following technical scheme:
the production process and method of cationic starch are characterized by comprising the following steps:
a. selecting cassava starch slurry and potato starch slurry, and mixing the cassava starch slurry and the potato starch slurry together in a ratio of 1: 1;
b. putting the mixed starch slurry into a stirring tank, and adding a pH blender into the stirring tank to neutralize the pH value of the mixed starch slurry to 5-6;
c. stirring the mixed starch slurry in the stirring tank, adding a cationic etherifying agent into the mixed starch slurry, and adding a plasticizer into the mixed starch slurry, wherein the mass ratio of the cationic etherifying agent to the mixed starch slurry is 15-20;
d. fully stirring the mixed starch slurry, the plasticizer and the cationic etherifying agent in the stirring tank;
e. pouring out the mixed starch slurry in the stirring tank, and injecting the mixed starch slurry into a radiation field of an irradiation chamber for radiation irradiation, wherein the radiation irradiation time is 2-4 hours;
f. vacuum drying is performed on the mixed starch slurry irradiated by radiation.
Further, the pH blender in the step b is glacial acetic acid.
Further, the pH of the mixed starch slurry was adjusted to pH 5.5.
In step c, a radical polymerization initiator is further added after the plasticizer is added to the mixed starch slurry.
Further, the mass ratio of the free radical polymerization initiator to the plasticizer is 0.5-2.
Further, the drying temperature in the step f is-50 to-60 ℃.
Further, the drying pressure in the step f is 70-90 Pa.
According to the production process and method of the cationic starch, the mixed starch slurry irradiated by radiation is subjected to vacuum drying at the drying temperature of minus 50 to minus 60 ℃ and the drying pressure of 70 to 90Pa, so that the practical degree of the production process can be improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
The embodiment of the invention provides a production process and a method of cationic starch, which are characterized by comprising the following steps:
a. selecting cassava starch slurry and potato starch slurry, and mixing the cassava starch slurry and the potato starch slurry together in a ratio of 1: 1;
b. putting the mixed starch slurry into a stirring tank, and adding a pH blender into the stirring tank to neutralize the pH value of the mixed starch slurry to 5-6;
c. stirring the mixed starch slurry in the stirring tank, adding a cationic etherifying agent into the mixed starch slurry, and adding a plasticizer into the mixed starch slurry, wherein the mass ratio of the cationic etherifying agent to the mixed starch slurry is 15-20;
d. fully stirring the mixed starch slurry, the plasticizer and the cationic etherifying agent in the stirring tank;
e. pouring out the mixed starch slurry in the stirring tank, and injecting the mixed starch slurry into a radiation field of an irradiation chamber for radiation irradiation, wherein the radiation irradiation time is 2-4 hours;
f. vacuum drying is performed on the mixed starch slurry irradiated by radiation.
In one embodiment of the present invention, the mixed starch slurry in the present application is a mixture of a tapioca starch slurry and a potato starch slurry, or a mixed starch slurry of a tapioca starch slurry and a corn starch slurry, and the PH of the mixed starch slurry is adjusted before the mixed starch slurry is prepared into cationic starch, in the present application, when the mixed starch slurry is stirred by a stirring tank, a PH blender is added to the mixed starch slurry in the stirring tank, and preferably, the PH can be blended to 5.5.
In an embodiment of the present invention, the PH adjuster in step b is glacial acetic acid, so that the PH of the mixed starch slurry can be adjusted efficiently, and the adjustment method is low in cost.
In this embodiment, after the plasticizer is added to the mixed starch slurry in step c, a radical polymerization initiator is also added.
In the present embodiment, the mass ratio of the radical polymerization initiator to the plasticizer is 0.5 to 2.
In the embodiment, the drying temperature in the step f is-50 to-60 ℃, and the drying pressure in the step f is 70 to 90 Pa.
In one embodiment of the invention, the irradiation time of the mixed starch slurry can be adjusted according to the amount of the mixed starch slurry, and when the mixed starch slurry is irradiated, the mixed starch slurry should be uniformly spread in a glass dish, and the opening surface area of the glass dish is large.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The production process and method of cationic starch are characterized by comprising the following steps:
a. selecting cassava starch slurry and potato starch slurry, and mixing the cassava starch slurry and the potato starch slurry together in a ratio of 1: 1;
b. putting the mixed starch slurry into a stirring tank, and adding a pH blender into the stirring tank to neutralize the pH value of the mixed starch slurry to 5-6;
c. stirring the mixed starch slurry in the stirring tank, adding a cationic etherifying agent into the mixed starch slurry, and adding a plasticizer into the mixed starch slurry, wherein the mass ratio of the cationic etherifying agent to the mixed starch slurry is 15-20;
d. fully stirring the mixed starch slurry, the plasticizer and the cationic etherifying agent in the stirring tank;
e. pouring out the mixed starch slurry in the stirring tank, and injecting the mixed starch slurry into a radiation field of an irradiation chamber for radiation irradiation, wherein the radiation irradiation time is 2-4 hours;
f. vacuum drying is performed on the mixed starch slurry irradiated by radiation.
2. The process and method for producing cationic starch of claim 1, wherein the pH modifier in step b is glacial acetic acid.
3. The process and method for producing cationic starch according to claim 2, wherein the pH of the mixed starch slurry is adjusted to pH 5.5.
4. The process and method for producing cationic starch according to claim 1, wherein a radical polymerization initiator is further added after the plasticizer is added to the mixed starch slurry in step c.
5. The production process and method of cationic starch according to claim 4, wherein the mass ratio of the free radical polymerization initiator to the plasticizer is 0.5-2.
6. The production process and method of cationic starch according to claim 1, wherein the drying temperature in step f is-50 to-60 ℃.
7. The process and method for producing cationic starch according to claim 6, wherein the drying pressure in step f is 70-90 Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210678171.4A CN114891129A (en) | 2022-06-16 | 2022-06-16 | Production process and method of cationic starch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210678171.4A CN114891129A (en) | 2022-06-16 | 2022-06-16 | Production process and method of cationic starch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114891129A true CN114891129A (en) | 2022-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210678171.4A Pending CN114891129A (en) | 2022-06-16 | 2022-06-16 | Production process and method of cationic starch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114891129A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110194806A (en) * | 2019-05-21 | 2019-09-03 | 广西高源淀粉有限公司 | A kind of preparation method of cationic starch |
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2022
- 2022-06-16 CN CN202210678171.4A patent/CN114891129A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110194806A (en) * | 2019-05-21 | 2019-09-03 | 广西高源淀粉有限公司 | A kind of preparation method of cationic starch |
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Application publication date: 20220812 |