CN106967178A - Preparation method of composite modified starch - Google Patents
Preparation method of composite modified starch Download PDFInfo
- Publication number
- CN106967178A CN106967178A CN201710383850.8A CN201710383850A CN106967178A CN 106967178 A CN106967178 A CN 106967178A CN 201710383850 A CN201710383850 A CN 201710383850A CN 106967178 A CN106967178 A CN 106967178A
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- CN
- China
- Prior art keywords
- starch
- preparation
- composite modified
- value
- modified starch
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- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229920000881 Modified starch Polymers 0.000 title claims abstract description 16
- 239000004368 Modified starch Substances 0.000 title claims abstract description 16
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 235000019426 modified starch Nutrition 0.000 title claims abstract description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 42
- 229920002472 Starch Polymers 0.000 claims abstract description 37
- 239000008107 starch Substances 0.000 claims abstract description 37
- 235000019698 starch Nutrition 0.000 claims abstract description 37
- 239000000243 solution Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 9
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract description 7
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 7
- 239000007800 oxidant agent Substances 0.000 claims abstract description 7
- 230000001590 oxidative effect Effects 0.000 claims abstract description 7
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract description 7
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000012670 alkaline solution Substances 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000000839 emulsion Substances 0.000 claims description 8
- 229940079827 sodium hydrogen sulfite Drugs 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 5
- 229920002261 Corn starch Polymers 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000008120 corn starch Substances 0.000 claims description 4
- 239000012153 distilled water Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 2
- YWNYZQTZOONLGU-UHFFFAOYSA-N C(CC)Cl.[O] Chemical compound C(CC)Cl.[O] YWNYZQTZOONLGU-UHFFFAOYSA-N 0.000 claims 1
- 230000008961 swelling Effects 0.000 abstract 1
- 238000005303 weighing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000010339 dilation Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009941 weaving Methods 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
- C08B31/18—Oxidised starch
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 discloses a preparation method of composite modified starch, which comprises the following steps: accurately weighing 20 g of cross-linked starch, preparing a starch alkaline solution by adopting a sodium hydroxide solution, carrying out constant-temperature water bath for 20-30 minutes, and stirring at a low speed; slowly adding sodium hypochlorite, and keeping the pH value constant in the process; after reacting for 20-30 minutes, adjusting the pH value to 6.5, and then dropwise adding sodium bisulfite to reduce the residual oxidant; and (4) finally, centrifuging and washing, repeating the steps for 3 times, putting the obtained product into a drying box at the temperature of 55-60 ℃, and drying for 4 hours to obtain the composite modified starch. The starch has good swelling degree, solubility, transparency and paste stability, and simultaneously has good film forming property, adsorptivity and freeze-thaw stability.
Description
Technical field
The invention belongs to food processing technology field, and in particular to a kind of preparation method of composite modified starch.
Background technology
Starch is widely used in every profession and trade as a kind of abundance, cheap, degradable reproducible resource,
Starch oneself turn into the important raw material of every profession and trade such as food, papermaking, medicine, weaving, building and fine chemistry industry.But, because of its structure
With the defect on engineering property, cold water is not dissolved in such as, and paste liquid performance under the effects such as acid, heat and mechanical agitation is unstable, it is easy to
Aging, industrial special requirement etc. is can not meet, and strongly limit application of the starch in each field.
The content of the invention
The present invention proposes a kind of preparation method of composite modified starch, the dilation of the starch, solubility, transparency and
Liquid stability is pasted preferable, while having preferable film forming, adsorptivity and freeze-thaw stability.
The invention discloses a kind of preparation method of composite modified starch, comprise the following steps：
Step（1）:20 g crosslinked starch accurately are weighed, are configured to using sodium hydroxide solution after starch alkaline solution, thermostatted water
Bath 20-30 minutes, stirring at low speed；
Step（2）:Sodium hypochlorite is slowly added to, the invariable of pH value is kept in the process；
Step（3）:After reaction 20-30 minutes, regulation pH value is 6.5, then sodium hydrogensulfite is added dropwise, and makes remaining oxidant also
It is former；
Step（4）:Eventually pass after centrifugation, washing, repeatedly so 3 times as 55-60 DEG C in drying box, dry 4h produces compound
Converted starch.
Preferably, the crosslinked starch preparation method is：Waxy corn starch accurately is weighed, hydrogen is then added into
In sodium hydroxide solution, obtain after starch alkaline emulsion, be placed on heating in 50-60 DEG C of water bath with thermostatic control, and stirred with magnetic force
Mix device to be stirred continuously, after 30-35min, epoxychloropropane is drawn in starch alkaline emulsion, after completion of the reaction, during regulation pH value is
After repeatedly being washed, centrifuging with distilled water after property, static 30min, it is placed in drying box in 50 DEG C of dry 3h, produces crosslinked starch.
Any of the above-described scheme is preferably, it is characterised in that the step（2）In be slowly added to sodium hypochlorite, reaction
During, watery hydrochloric acid is intermittently added dropwise to keep pH value in reaction to be maintained at 7.5.
Any of the above-described scheme is preferably, it is characterised in that the step（1）In sodium hydroxide solution mass fraction be
3%-5%, the stirring at low speed time is 30min.
Any of the above-described scheme is preferably, it is characterised in that the step（3）Neutralized with 3% watery hydrochloric acid to pH value and be
6.5, then 10% sodium hydrogensulfite is added dropwise, make remaining oxidant reduction.
Beneficial effects of the present invention are as follows：
The present invention dilation, solubility, transparency and paste liquid stability it is preferable, while having preferable film forming, absorption
Property and freeze-thaw stability.
Embodiment
Following embodiments are further illustrating using as the explaination to the technology of the present invention content for present invention, but
The present invention substantive content be not limited in described in following embodiments, one of ordinary skill in the art can with and should know appoint
What simple change or replacement based on true spirit all should belong to protection domain of the presently claimed invention.
Embodiment one：
A kind of preparation method of composite modified starch, prepares crosslinked starch first, and the crosslinked starch preparation method is：It is accurate to claim
Waxy corn starch is taken, is then added into sodium hydroxide solution, obtains after starch alkaline emulsion, is placed on 50 DEG C
Water bath with thermostatic control in heat, and be stirred continuously with magnetic stirring apparatus, after 30min, draw epoxychloropropane in starch alkaline emulsion,
After completion of the reaction, regulation pH value is neutrality, after repeatedly being washed after static 30min, centrifuging with distilled water, is placed in drying box 50
DEG C dry 3h, produce crosslinked starch.
The preparation method of composite modified starch comprises the following steps：
Step（1）：20 g crosslinked starch accurately are weighed, are configured to using sodium hydroxide solution after starch alkaline solution, thermostatted water
Bath 20 minutes, stirring at low speed, sodium hydroxide solution mass fraction is 3%, and the stirring at low speed time is 30min；
Step（2）：Sodium hypochlorite is slowly added to, watery hydrochloric acid is intermittently added dropwise to keep pH value in reaction to be maintained at 7.5；
Step（3）：After reaction 20 minutes, it is 6.5 to be neutralized with 3% watery hydrochloric acid to pH value, then 10% sodium hydrogensulfite is added dropwise, and is made
Remaining oxidant reduction；
Step（4）：Eventually pass after centrifugation, washing, repeatedly so 3 times as 55 DEG C in drying box, dry 4h and produce compound change
Property starch.
Embodiment two：
Invention additionally discloses a kind of preparation method of composite modified starch, crosslinked starch is prepared first, prepared by the crosslinked starch
Method is：Waxy corn starch accurately is weighed, is then added into sodium hydroxide solution, sodium hydroxide solution mass fraction
For 3-5%, obtain after starch alkaline emulsion, be placed on heating in 60 DEG C of water bath with thermostatic control, and constantly stirred with magnetic stirring apparatus
Mix, after 30min, draw epoxychloropropane in starch alkaline emulsion, after completion of the reaction, regulation pH value is neutral, after static 30min
After repeatedly being washed, centrifuging with distilled water, it is placed in drying box in 50 DEG C of dry 3h, produces crosslinked starch.
The preparation method of composite modified starch comprises the following steps：
Step（1）：20 g crosslinked starch accurately are weighed, are configured to using sodium hydroxide solution after starch alkaline solution, thermostatted water
Bath 30 minutes, stirring at low speed, sodium hydroxide solution mass fraction is 3%, and the stirring at low speed time is 30min；
Step（2）：Sodium hypochlorite is slowly added to, watery hydrochloric acid is intermittently added dropwise to keep pH value in reaction to be maintained at 7.5；
Step（3）：After reaction 30 minutes, it is 6.5 to be neutralized with 3% watery hydrochloric acid to pH value, then 10% sodium hydrogensulfite is added dropwise, and is made
Remaining oxidant reduction；
Step（4）：Eventually pass after centrifugation, washing, repeatedly so 3 times as 55 DEG C in drying box, dry 4h and produce compound change
Property starch.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (5)
1. a kind of preparation method of composite modified starch, it is characterised in that comprise the following steps：
Step（1）:20g crosslinked starch accurately is weighed, is configured to using sodium hydroxide solution after starch alkaline solution, water bath with thermostatic control
20-30 minutes, stirring at low speed；
Step（2）:Sodium hypochlorite is slowly added to, the invariable of pH value is kept in the process；
Step（3）:After reaction 20-30 minutes, regulation pH value is 6.5, then sodium hydrogensulfite is added dropwise, and makes remaining oxidant also
It is former；
Step（4）:Eventually pass after centrifugation, washing, repeatedly so 3 times as 55-60 DEG C in drying box, dry 4h produces compound
Converted starch.
2. a kind of preparation method of composite modified starch according to claim 1, it is characterised in that the crosslinked starch system
Preparation Method is：Waxy corn starch accurately is weighed, is then added into sodium hydroxide solution, starch alkaline emulsion is obtained
Afterwards, it is placed on heating in 50-60 DEG C of water bath with thermostatic control, and is stirred continuously with magnetic stirring apparatus, after 30-35min, draws ring
Oxygen chloropropane is in starch alkaline emulsion, and after completion of the reaction, regulation pH value is neutral, repeatedly washed with distilled water after static 30min,
After centrifugation, it is placed in drying box in 50 DEG C of dry 3h, produces crosslinked starch.
3. a kind of preparation method of composite modified starch according to claim 1, it is characterised in that the step（2）In
Sodium hypochlorite is slowly added to, during the course of the reaction, watery hydrochloric acid is intermittently added dropwise to keep pH value in reaction to be maintained at 7.5.
4. a kind of preparation method of composite modified starch according to claim 1, it is characterised in that the step（1）In
Sodium hydroxide solution mass fraction be 3%-5%, the stirring at low speed time be 30min.
5. a kind of preparation method of composite modified starch according to claim 1, it is characterised in that the step（3）With
It is 6.5 that 3% watery hydrochloric acid, which is neutralized to pH value, then 10% sodium hydrogensulfite is added dropwise, and makes remaining oxidant reduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383850.8A CN106967178A (en) | 2017-05-26 | 2017-05-26 | Preparation method of composite modified starch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710383850.8A CN106967178A (en) | 2017-05-26 | 2017-05-26 | Preparation method of composite modified starch |
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| Publication Number | Publication Date |
|---|---|
| CN106967178A true CN106967178A (en) | 2017-07-21 |
Family
ID=59327004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710383850.8A Pending CN106967178A (en) | 2017-05-26 | 2017-05-26 | Preparation method of composite modified starch |
Country Status (1)
| Country | Link |
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| CN (1) | CN106967178A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047341A (en) * | 2017-12-19 | 2018-05-18 | 东莞东美食品有限公司 | A kind of preparation method of rubber gloves interleaving agent converted starch |
| CN108219166A (en) * | 2018-02-02 | 2018-06-29 | 河南工业大学 | A kind of preparation method aoxidized with Schiff Modified high amylose cornstarch |
| CN108384211A (en) * | 2018-04-10 | 2018-08-10 | 佛山市熙华科技有限公司 | A kind of preparation method of environmental-protection ventilation laminated film |
| CN109320619A (en) * | 2018-11-24 | 2019-02-12 | 蚌埠学院 | A kind of preparation method of crosslinking-oxidization jointly modified starch |
| CN111393921A (en) * | 2020-04-01 | 2020-07-10 | 郑州熙虎科技有限公司 | Special paint for antique building art antiquing |
| CN111393929A (en) * | 2020-04-01 | 2020-07-10 | 郑州熙虎科技有限公司 | Environment-friendly water-based paint for historic building |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796524A (en) * | 2004-12-30 | 2006-07-05 | 中国科学院成都有机化学有限公司 | Detergency promoter of composite oxidative starch and synthetic method |
| CN101676308A (en) * | 2008-09-18 | 2010-03-24 | 长春大成特用玉米变性淀粉开发有限公司 | Waxy modified starch, preparation method and application thereof |
| CN101704896A (en) * | 2009-12-22 | 2010-05-12 | 中南林业科技大学 | Method for preparing crosslinking-oxidization jointly modified starch |
| CN102190738A (en) * | 2011-05-27 | 2011-09-21 | 黑龙江北大荒斯达奇生物科技有限公司 | Preparation method of cassava modified starch |
-
2017
- 2017-05-26 CN CN201710383850.8A patent/CN106967178A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1796524A (en) * | 2004-12-30 | 2006-07-05 | 中国科学院成都有机化学有限公司 | Detergency promoter of composite oxidative starch and synthetic method |
| CN101676308A (en) * | 2008-09-18 | 2010-03-24 | 长春大成特用玉米变性淀粉开发有限公司 | Waxy modified starch, preparation method and application thereof |
| CN101704896A (en) * | 2009-12-22 | 2010-05-12 | 中南林业科技大学 | Method for preparing crosslinking-oxidization jointly modified starch |
| CN102190738A (en) * | 2011-05-27 | 2011-09-21 | 黑龙江北大荒斯达奇生物科技有限公司 | Preparation method of cassava modified starch |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047341A (en) * | 2017-12-19 | 2018-05-18 | 东莞东美食品有限公司 | A kind of preparation method of rubber gloves interleaving agent converted starch |
| CN108219166A (en) * | 2018-02-02 | 2018-06-29 | 河南工业大学 | A kind of preparation method aoxidized with Schiff Modified high amylose cornstarch |
| CN108219166B (en) * | 2018-02-02 | 2020-09-11 | 河南工业大学 | Preparation method of oxidized and Schiff base modified high-amylose corn starch |
| CN108384211A (en) * | 2018-04-10 | 2018-08-10 | 佛山市熙华科技有限公司 | A kind of preparation method of environmental-protection ventilation laminated film |
| CN109320619A (en) * | 2018-11-24 | 2019-02-12 | 蚌埠学院 | A kind of preparation method of crosslinking-oxidization jointly modified starch |
| CN111393921A (en) * | 2020-04-01 | 2020-07-10 | 郑州熙虎科技有限公司 | Special paint for antique building art antiquing |
| CN111393929A (en) * | 2020-04-01 | 2020-07-10 | 郑州熙虎科技有限公司 | Environment-friendly water-based paint for historic building |
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Application publication date: 20170721 |
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| RJ01 | Rejection of invention patent application after publication |