CN100523001C - Method of preparing degradable material by corn deep processing - Google Patents
Method of preparing degradable material by corn deep processing Download PDFInfo
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- CN100523001C CN100523001C CNB200610045513XA CN200610045513A CN100523001C CN 100523001 C CN100523001 C CN 100523001C CN B200610045513X A CNB200610045513X A CN B200610045513XA CN 200610045513 A CN200610045513 A CN 200610045513A CN 100523001 C CN100523001 C CN 100523001C
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- succinic anhydried
- degradable material
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Abstract
The present invention relates to The present invention relates to a method for preparing degradable material by deep-processing corn. Said method includes the following steps: (1), coarse-pulverizing corn, and making the coarse-pulverized corn be suspended in the water, adding butanedioic anhydride derivative, using metal alkaline solution to regulate pH value to 9-12, heating to 65-80deg.C and making reaction for 6-10hr; (2), adding cross-linking agent into emulsion, reacting for 0.1-5hr, then adding acid to make neutralization and regulate pH value to 5.5-6.5, heating said system to 80-100deg.C, heat-insulating for 25-50min, filtering and water-washing to normal temperature; and (3), adding alpha-amylase, making biological degradation, finally, filtering hydrolysate, drying and pulverizing so as to obtain starch degradable material.
Description
Technical field
The present invention relates to a kind of method of preparing degradable material by corn deep processing, the starch catabolin that this method is produced can be applicable to industry and fields such as papermaking, weaving, food, chemical industry.
Background technology
Starch be a kind of by plant by the synthetic particulate state natural macromolecular material of photosynthesis, its essentially consist is a carbohydrate.The degradation product product of starch mainly is dextrin, Oligomeric maltose, isomaltose, glucose etc., its preparation process is: starch milk is regulated the pH value, high temperature resistant a-the amylase that adds requirement, beat in the about hot water more than 90 ℃ of spray header introducing liquefaction bucket with pump, starch be heated gelatinization, liquefaction, add the saccharifying enzyme saccharification afterwards again, refining product.The production technique major defect of this method shows as two aspects: 1, common α-amylase inactivation at high temperature, thereby need to use specific high temperature resistant a-amylase; 2, starch milk is carried out heat with 95-105 ℃ of high-temperature injection devices, need to consume lot of energy, production cost is increased greatly.Above defective mainly is because the starch material that uses causes as ative starch.Ative starch is a polycrystalline particle attitude product, has polycrystallinity and graininess, a-diastatic action at normal temperatures, and itself does not change starch granules, therefore starch granules gelatinization at high temperature must be destroyed its crystalline texture, could be by enzyme liquefaction.
Summary of the invention
Purpose of the present invention is exactly the defective at prior art, and it is raw material that a kind of direct employing corn is provided, and directly obtains the method for the preparing degradable material by corn deep processing of starch catabolin by deep processing.
Technical scheme of the present invention is:
(1) corn of 100 weight parts is carried out coarse reduction processing after, be suspended in the water of 200-300 weight part, add the Succinic anhydried derivative of 5-8 weight part again, adjust pH value between 9-12 with metal base solution, heat 65-80 ℃, reacted 6-10 hour, form emulsion.
(2) the 1-2.5 parts by weight of cross-linking agent is added in the emulsion, react after 0.1-5 hours, adding the acid pH value that neutralizes is 5.5-6.5, and system is heated to 80-100 ℃, is incubated after 25-50 minute, filters and be washed with water to normal temperature.
(3) α-amylase of adding 0.05-1 weight part through biological degradation in 12-20 hour, makes starch catabolin with hydrolyzed solution filtration, drying, pulverizing at last.
Described linking agent be phosphorus oxychloride, Trisodium trimetaphosphate, epoxy chloropropane wherein one or more; The Succinic anhydried derivative is meant octyl Succinic anhydried, hexadecyl Succinic anhydried, octadecyl Succinic anhydried; Metal base comprises sodium hydroxide or potassium hydroxide; Acid is meant sulfuric acid.
The degraded product that obtains can be made starchy carbohydrate products such as glucose, maltose, fructose, oligose by refinement treatment such as further saccharifying enzyme saccharification, decolorizing with activated carbon, ion-exchange, evaporation concentration.The degraded product that obtains can also be made pulverous dextrin series products directly by processing such as decolorizing with activated carbon, ion-exchange, evaporation concentration and spraying dryings.
The present invention compared with prior art has following advantage: directly adopting corn is raw material, carries out enzymolysis at normal temperatures, and plant and instrument is simple, mild condition is operated easily and is controlled, and saves energy, reduce cost, can be widely used in industry and fields such as papermaking, weaving, food, chemical pharmaceutical.
Embodiment:
Embodiment 1: after the corn of 100 weight parts is carried out coarse reduction processing, be suspended in the water of 200 weight parts, add the octyl Succinic anhydried of 5 weight parts again, adjusting pH value with the potassium hydroxide alkaline solution is 9, heats 65 ℃, reacts the formation emulsion 8 hours.
Then 1.5 parts by weight of cross-linking agent are added in the emulsion, react after 1 hour, adding the sulfuric acid pH value that neutralizes is 5.5, and system is heated to 88 ℃, is incubated after 25 minutes, filters and be washed with water to normal temperature.
α-the amylase that adds 0.1 weight part at last through biological degradation in 12 hours, makes starch catabolin with hydrolyzed solution filtration, drying, pulverizing.
Embodiment 2: after the corn of 100 weight parts is carried out coarse reduction processing, be suspended in the water of 300 weight parts, add the octadecyl Succinic anhydried of 8 weight parts again, adjusting pH value with the sodium hydroxide alkaline solution is 10, heats 80 ℃, reacts the formation emulsion 9 hours.
Then 2.5 parts by weight of cross-linking agent are added in the emulsion, react after 2 hours, adding the sulfuric acid pH value that neutralizes is 6.5, and system is heated to 90 ℃, is incubated after 50 minutes, filters and be washed with water to normal temperature.
(3) α-amylase of adding 1 weight part through biological degradation in 12 hours, makes starch catabolin with hydrolyzed solution filtration, drying, pulverizing at last.
Claims (2)
1, a kind of method of preparing degradable material by corn deep processing is characterized in that:
(1) corn of 100 weight parts is carried out coarse reduction processing after, be suspended in the water of 200-300 weight part, add the Succinic anhydried derivative of 5-8 weight part again, adjust the pH value between 9-12 with metal base solution, heat 65-80 ℃, reacted 6-10 hour, form emulsion;
(2) the 1-2.5 parts by weight of cross-linking agent is added in the emulsion, react after 0.1-5 hours, adding the acid pH value that neutralizes is 5.5-6.5, and system is heated to 80-100 ℃, is incubated after 25-50 minute, filters and be washed with water to normal temperature;
(3) α-amylase of adding 0.05-1 weight part through biological degradation in 12-20 hour, makes starch catabolin with hydrolyzed solution filtration, drying, pulverizing at last.
2, the method for preparing degradable material by corn deep processing according to claim 1 is characterized in that: described linking agent be phosphorus oxychloride, Trisodium trimetaphosphate, epoxy chloropropane wherein one or more; The Succinic anhydried derivative is meant octyl Succinic anhydried, hexadecyl Succinic anhydried, octadecyl Succinic anhydried; Metal base comprises sodium hydroxide or potassium hydroxide; Acid is meant sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610045513XA CN100523001C (en) | 2006-07-19 | 2006-07-19 | Method of preparing degradable material by corn deep processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610045513XA CN100523001C (en) | 2006-07-19 | 2006-07-19 | Method of preparing degradable material by corn deep processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1903882A CN1903882A (en) | 2007-01-31 |
| CN100523001C true CN100523001C (en) | 2009-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610045513XA Expired - Fee Related CN100523001C (en) | 2006-07-19 | 2006-07-19 | Method of preparing degradable material by corn deep processing |
Country Status (1)
| Country | Link |
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| CN (1) | CN100523001C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085843B (en) * | 2007-07-07 | 2012-04-18 | 贾军毅 | Functional additive of starch-based biodegradable packaging material and production method thereof |
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2006
- 2006-07-19 CN CNB200610045513XA patent/CN100523001C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 丁二酸淀粉酯制备工艺的研究. 陈均志，银鹏.西北轻工业学院学报，第20卷第4期. 2002 |
| 丁二酸淀粉酯制备工艺的研究. 陈均志，银鹏.西北轻工业学院学报，第20卷第4期. 2002 * |
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| Publication number | Publication date |
|---|---|
| CN1903882A (en) | 2007-01-31 |
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