CN101423620B - Method for preparing porous starch - Google Patents
Method for preparing porous starch Download PDFInfo
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- CN101423620B CN101423620B CN200810051601XA CN200810051601A CN101423620B CN 101423620 B CN101423620 B CN 101423620B CN 200810051601X A CN200810051601X A CN 200810051601XA CN 200810051601 A CN200810051601 A CN 200810051601A CN 101423620 B CN101423620 B CN 101423620B
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Abstract
The invention provides a method for preparing porous starch. The method prepares a porous starch material by adoption of starch as a raw material and combination of the hydro-thermal treatment method and the solvent exchange method. The method utilizes combination of high temperature and high pressure and solvent exchange to fix natural pore canals of vegetable starch, form a mesoporous structure, and make the finished products capable of being completely degraded and have superior performances such as high specific surface area and high pore volume. The method has simple technology and can massively produce the porous starch. Because all the materials are starch materials and the cost of the materials is low, the porous starch can be obtained, wherein the average pore diameter of the porous starch is between 2 and 10 nanometers, the specific surface area of the porous starch is between 50 and 80 <2> square meters per gram or between 0.11 and 0.15 <3> cubic centimeters per gram, the density of the porous starch is between 1.25 and 1.35 gram per cubic centimeter, and the oil absorption multiple of the porous starch is between 2.00 and 2.60 gram per gram.
Description
Technical field
The present invention relates to a kind of preparation method of porous-starch.
Background technology
Starch is as a kind of degradable cheap natural material, and the modification by physics or chemistry has been widely used in food or non-food product field.Porous-starch is meant that starch forms a kind of hollow modified starch after physics, chemistry and biological method are handled, owing to have high specific surface area, pore volume, low density and degradability, caused the great interest of people.It can be widely used in industries such as medicine, agricultural chemicals, printing, daily-use chemical industry, makeup and food as a kind of novel organic adsorbent and Bao Li material.
Chinese patent CN 1546529 discloses a kind of method of utilizing prozyme Processing of Preparation porous-starch.Utilize the porous-starch aperture of this method preparation bigger, mostly be the micron order aperture, so the porous material specific surface of gained is not high relatively, and this method is comparatively strict to the requirement of enzyme.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of porous-starch, step and condition are as follows: be 0.02%-0.2% according to mass concentration at first, starch is scattered in the water, gelatinization under 70～100 ℃ of conditions, add in the reactor that seals then in 130～160 ℃ of following thermal treatments 3～12 hours, with the organic solvent deposit of 3～5 times of starch solution volumes, filter the final vacuum drying, obtain porous-starch; Described starch is W-Gum, yam starch, tapioca (flour) or pea starch, and the organic solvent that uses is methyl alcohol, acetone or alcohol.
Beneficial effect: method of the present invention utilizes High Temperature High Pressure to combine with exchange of solvent, and fixedly the natural duct of plant amylum forms central hole structure, makes final product can high-fallly separate and possess excellent properties such as high-specific surface area, high pore volume.Starch of the present invention is industrial raw material, and cost is lower, and need not carry out purification processes before the reaction, so technology is simple, but mass production.Utilize method of the present invention can obtain mean pore size and be 50-80m for 2-10nm, specific surface area
2/ g, pore volume are 0.11-0.15cm
3/ g, density are 1.25-1.35g/cm
3, the oil suction multiple is the porous-starch sill of 2.00-2.60g/g.
Embodiment
Embodiment 1
At first 5 gram starch are scattered in the 50 gram water, gelatinization under 80 ℃ of conditions adds in the reactor that seals then in 160 ℃ of following thermal treatments 3～12 hours; With 150 gram ethanol sedimentations, filter final vacuum and be drying to obtain starch-based material then.The mean pore size of this porous-starch is 8nm, and specific surface area is 65m
2/ g, pore volume are 0.11cm
3/ g, density is 1.32g/cm
3, the oil suction multiple is 2.43g/g.
Embodiment 2
At first 5 gram starch are scattered in the 20 gram water, gelatinization under 100 ℃ of conditions adds in the reactor that seals then in 130 ℃ of following thermal treatments 3 hours; With 100 gram ethanol sedimentations, filter final vacuum and be drying to obtain starch-based material then.This porous-starch mean pore size be 6nm, specific surface area is 68m
2/ g, pore volume are 0.13cm
3/ g, density is 1.34g/cm
3, the oil suction multiple is 2.03g/g.
Embodiment 3
At first 5 gram starch are scattered in the 100 gram water, gelatinization under 70 ℃ of conditions adds in the reactor that seals then in 140 ℃ of following thermal treatments 8 hours; With 400 gram ethanol sedimentations, filter final vacuum and be drying to obtain starch-based material then.This porous-starch mean pore size be 7nm, specific surface area is 74m
2/ g, pore volume are 0.15cm
3/ g, density is 1.29g/cm
3, the oil suction multiple is 2.57g/g.
Embodiment 4
At first 5 gram starch are scattered in the 200 gram water, gelatinization under 100 ℃ of conditions adds in the reactor that seals then in 150 ℃ of following thermal treatments 8 hours; With 600 gram ethanol sedimentations, filter final vacuum and be drying to obtain starch-based material then.This porous-starch mean pore size be 7nm, specific surface area is 78m
2/ g, pore volume are 0.11cm
3/ g, density is 1.37g/cm
3, the oil suction multiple is 2.22g/g.
Claims (1)
1. the preparation method of a porous-starch, it is characterized in that step and condition are as follows: be 0.02%-0.2% at first according to mass concentration, starch is scattered in the water, gelatinization under 70～100 ℃ of conditions, add in the reactor that seals then in 130～160 ℃ of following thermal treatments 3～12 hours, with the organic solvent deposit of 3～5 times of starch solution volumes, filter the final vacuum drying, obtain porous-starch; Described starch is W-Gum, yam starch, tapioca (flour) or pea starch, and the organic solvent that uses is methyl alcohol, acetone or alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051601XA CN101423620B (en) | 2008-12-16 | 2008-12-16 | Method for preparing porous starch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810051601XA CN101423620B (en) | 2008-12-16 | 2008-12-16 | Method for preparing porous starch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101423620A CN101423620A (en) | 2009-05-06 |
| CN101423620B true CN101423620B (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810051601XA Active CN101423620B (en) | 2008-12-16 | 2008-12-16 | Method for preparing porous starch |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102058062A (en) * | 2010-11-18 | 2011-05-18 | 河南工业大学 | Method for improving quality of quick-frozen dumplings by using porous starch |
| CN102276851B (en) * | 2011-08-22 | 2012-10-10 | 苏州高峰淀粉科技有限公司 | Method for preparing porous starch with emulsibility |
| CN102516612B (en) * | 2011-12-20 | 2013-07-24 | 海南大学 | Preparation method for porous starch/natural rubber compound |
| CN103012607A (en) * | 2012-12-07 | 2013-04-03 | 天津大学 | Preparation method of porous dialdehyde starch with high urea adsorption |
| CN103467770A (en) * | 2013-09-23 | 2013-12-25 | 天津科技大学 | Preparation method of novel porous starch |
| CN112773928B (en) * | 2021-01-05 | 2021-09-21 | 珠海原妙医学科技股份有限公司 | Starch-based fluffy particles and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857995A1 (en) * | 1998-12-16 | 2000-06-21 | Buna Sow Leuna Olefinverb Gmbh | Process for the preparation of precipitated starch esters |
| JP2000355683A (en) * | 1999-06-15 | 2000-12-26 | Oji Paper Co Ltd | Porous starch for corrugated fiberboard adhesive, and corrugated fiberboard adhesive |
| CN1546529A (en) * | 2003-12-01 | 2004-11-17 | 江南大学 | Method for producing porous starch and its application |
-
2008
- 2008-12-16 CN CN200810051601XA patent/CN101423620B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19857995A1 (en) * | 1998-12-16 | 2000-06-21 | Buna Sow Leuna Olefinverb Gmbh | Process for the preparation of precipitated starch esters |
| JP2000355683A (en) * | 1999-06-15 | 2000-12-26 | Oji Paper Co Ltd | Porous starch for corrugated fiberboard adhesive, and corrugated fiberboard adhesive |
| CN1546529A (en) * | 2003-12-01 | 2004-11-17 | 江南大学 | Method for producing porous starch and its application |
Non-Patent Citations (2)
| Title |
|---|
| JP平3-043052A 1991.02.25 |
| 周坚等.微孔淀粉制备的预处理工艺研究.《食品科学》.2005,第26卷(第11期),154-156. * |
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| CN101423620A (en) | 2009-05-06 |
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Owner name: CHANGZHOU INSTITUTE OF ENERGY STORAGE MATERIALS + Free format text: FORMER OWNER: CHANGCHUN INST. OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES Effective date: 20130916 |
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Free format text: CORRECT: ADDRESS; FROM: 130022 CHANGCHUN, JILIN PROVINCE TO: 213000 CHANGZHOU, JIANGSU PROVINCE |
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Effective date of registration: 20130916 Address after: Changzhou City, Jiangsu province Hehai road 213000 No. 9 Patentee after: Changzhou Institute of Energy Storage Materials & Devices Address before: 130022 Changchun people's street, Jilin, No. 5625 Patentee before: Changchun Institue of Applied Chemistry, Chinese Academy of Sciences |