CN1163272A - Predextrinizing finishing starch and its preparing method - Google Patents
Predextrinizing finishing starch and its preparing method Download PDFInfo
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- CN1163272A CN1163272A CN 97103905 CN97103905A CN1163272A CN 1163272 A CN1163272 A CN 1163272A CN 97103905 CN97103905 CN 97103905 CN 97103905 A CN97103905 A CN 97103905A CN 1163272 A CN1163272 A CN 1163272A
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Abstract
Material liquid compounded with finishing agent, starch and water and with pH value of 7.0-11.0 is fed to drum dryer for predextrinizing and drying, and after crushing, predextrinized finishing starch product with certain fineness is obtained. The said product has excellent viscoelaticity and its 5% water solution has a Brabender viscosity of 500-650 BU, rotational viscometer measured viscosity of 1500-4000 cP and legging length of 100-150 cm. The product may be widely used in feed, building material, oil drilling, chemical industry and other fields.
Description
The present invention relates to a kind of Predextrinizing finishing starch and preparation method thereof, specifically a kind of starch carries out Predextrinizing finishing starch of chemically modified production and preparation method thereof simultaneously through pre-gelatinization.
Starch be a kind of can regenerated, can the cheap essential industry raw material resources that obtain, the kind of starch deep processed product has reached hundreds of.Pre-gelatinized starch is a kind of of modified starch, has been widely used in fields such as feed, material of construction, petroleum drilling and chemical industry.The raw material of producing pre-gelatinized starch is mainly yam starch and tapioca (flour), and basic technology is that starch and water are made into feed liquid, feed liquid is delivered to roller dryer carries out pre-gelatinization and dry, and flaked product obtains the pre-gelatinized starch of certain fineness through pulverizing.With the pre-gelatinized starch that yam starch is produced, its visco-elasticity is better than the tapioca (flour), but its price is more expensive than tapioca (flour).After pre-gelatinized starch 5% aqueous solution of yam starch production is heated to 80 ℃, be cooled to 20 ℃, the brabender viscosity number is 400BU, is that 12rpm measures with DNJ-1 type viscometer, No. 2 rotors, rotating speeds, and viscosity number is 800cP, and length of string is 90cm.And the measured value of pre-gelatinized starch 5% aqueous solution of tapioca (flour) production is respectively 200BU, 680cP and 70cm.Therefore, adopt tapioca (flour) to produce pre-gelatinized starch and generally add the part yam starch, make the pre-gelatinized starch product have visco-elasticity preferably.
The object of the present invention is to provide a kind of starch to carry out Predextrinizing finishing starch of chemically modified production and preparation method thereof simultaneously through pre-gelatinization, the pre-gelatinized starch product that this preparation method produces has good visco-elasticity.
The objective of the invention is to realize by following scheme.
A kind of Predextrinizing finishing starch and preparation method thereof: by containing boron substance as 0.001～0.6 part of modifier, be preferably 0.0025～0.08 part, 25～40 parts of starch and water and be made into feed liquid for 60～75 parts, material liquid pH value is 7.0～11.0, and be incubated in 10～55 ℃, feed liquid is delivered to roller dryer carries out pre-gelatinization and dry, flaked product obtains the Predextrinizing finishing starch of certain fineness through pulverizing.Wherein starch can be tapioca (flour), yam starch or their mixture; The available hydrochloric acid of pH value, acetic acid or the sodium hydroxide of feed liquid are regulated; Containing the boron substance modifier is borax, boric acid or its mixture.
Predextrinizing finishing starch product provided by the invention has good viscoelastic characteristics, after Predextrinizing finishing starch product 5% aqueous solution provided by the invention is heated to 80 ℃, be cooled to 20 ℃, the brabender viscosity number is 500～650BU, with DNJ-1 type viscometer, No. 2 rotors, rotating speeds is that 6rpm or 12rpm measure, viscosity number is 1500～4000cP, and length of string is 100～150cm.Produce Predextrinizing finishing cassava or yam starch with preparation method provided by the invention, the visco-elasticity of its product is better than common pre-pasting potato starch.
The present invention is described in detail below in conjunction with embodiment.
Embodiment 1:
By containing 0.001～0.6 part of boron substance modifier borax, be preferably 0.0025～0.08 part, 25～40 parts of tapioca (flour)s and water and be made into feed liquid for 60～75 parts, material liquid pH value is 7.0～11.0, and be incubated in 10～55 ℃, feed liquid is delivered to roller dryer carries out pre-gelatinization and dry, flaked product obtains the Predextrinizing finishing starch of certain fineness through pulverizing.The available hydrochloric acid of pH value, acetic acid or the sodium hydroxide of feed liquid are regulated.After product 5% aqueous solution is heated to 80 ℃, be cooled to 20 ℃, the brabender viscosity number is 550～650BU, is that 6rpm or 12rpm measure with DNJ-1 type viscometer, No. 2 rotors, rotating speeds, and viscosity number is 2500～4000cP, and length of string is 120～150cm.
Embodiment 2:
The be modifiers different with embodiment 1 are boric acid.After product 5% aqueous solution is heated to 80 ℃, be cooled to 20 ℃, the brabender viscosity number is 500～650BU, is that 6rpm or 12rpm measure with DNJ-1 type viscometer, No. 2 rotors, rotating speeds, and viscosity number is 2000～4000cP, and length of string is 100～150cm.
Embodiment 3:
The be modifiers different with embodiment 1 are the mixture of borax and boric acid.After product 5% aqueous solution is heated to 80 ℃, be cooled to 20 ℃, the brabender viscosity number is 500～650BU, is that 6rpm or 12rpm measure with DNJ-1 type viscometer, No. 2 rotors, rotating speeds, and viscosity number is 1500～4000cP, and length of string is 100～150cm.
Embodiment 4:
The be starch different with embodiment 1 are yam starch.After product 5% aqueous solution is heated to 80 ℃, be cooled to 20 ℃, the brabender viscosity number is 500～650BU, is that 6rpm or 12rpm measure with DNJ-1 type viscometer, No. 2 rotors, rotating speeds, and viscosity number is 2000～4000cP, and length of string is 100～150cm.
Claims (9)
1, a kind of Predextrinizing finishing starch preparation method, it is characterized in that being made into feed liquid for 60～75 parts as 0.001～0.6 part of modifier, 25～40 parts of starch and water by containing boron substance, material liquid pH value is 7.0～11.0, feed liquid is delivered to roller dryer carries out pre-gelatinization and dry, flaked product obtains the Predextrinizing finishing starch of certain fineness through pulverizing.
2, Predextrinizing finishing starch preparation method as claimed in claim 1 is characterized in that containing the boron substance modifier and is preferably 0.0025～0.08 part.
3, Predextrinizing finishing starch preparation method as claimed in claim 1 or 2, it is characterized in that containing the boron substance modifier is borax, boric acid or its mixture.
4, Predextrinizing finishing starch preparation method as claimed in claim 3 is characterized in that starch can adopt tapioca (flour), yam starch or their mixture.
5,, it is characterized in that available hydrochloric acid, acetic acid or sodium hydroxide flavouring liquid pH value are 7.0～11.0 as claim 1 or 4 described Predextrinizing finishing starch preparation methods.
6, Predextrinizing finishing starch preparation method as claimed in claim 5 is characterized in that feed liquid is incubated in 10～55 ℃,
7, a kind of Predextrinizing finishing starch, it is characterized in that being made into feed liquid for 60～75 parts as 0.001～0.6 part of modifier, 25～40 parts of starch and water by containing boron substance, material liquid pH value is 7.0～11.0, feed liquid is delivered to roller dryer carries out pre-gelatinization and dry, flaked product is modified starch through the Predextrinizing finishing that pulverizing obtains certain fineness.
8, Predextrinizing finishing starch as claimed in claim 7, it is characterized in that containing the boron substance modifier is borax, boric acid or its mixture.
9,, it is characterized in that starch can adopt tapioca (flour), yam starch or their mixture as claim 7 or 8 described Predextrinizing finishing starch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103905A CN1074423C (en) | 1997-04-11 | 1997-04-11 | Predextrinizing finishing starch and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103905A CN1074423C (en) | 1997-04-11 | 1997-04-11 | Predextrinizing finishing starch and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1163272A true CN1163272A (en) | 1997-10-29 |
| CN1074423C CN1074423C (en) | 2001-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97103905A Expired - Fee Related CN1074423C (en) | 1997-04-11 | 1997-04-11 | Predextrinizing finishing starch and its preparing method |
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| CN (1) | CN1074423C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824094A (en) * | 2010-04-14 | 2010-09-08 | 江南大学 | Preparation and application of fatty acid starch ester by drum process |
| CN101235093B (en) * | 2007-02-03 | 2010-12-22 | 烟台金华粉丝有限公司 | Special-purpose modified starch for bean vermicelli and producing technique thereof |
| CN104782989A (en) * | 2015-04-28 | 2015-07-22 | 防城港市雅美好饲料有限公司 | Method for preparing aquatic product feed by using pre-gelatinized starch |
| CN104799093A (en) * | 2015-04-28 | 2015-07-29 | 防城港市雅美好饲料有限公司 | Preparation method of pregelatinized starch for aquatic feed |
| CN104814271A (en) * | 2015-04-28 | 2015-08-05 | 防城港市雅美好饲料有限公司 | Preparation method for manufacturing feed with pre-gelatinized starch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU563019B2 (en) * | 1984-05-21 | 1987-06-25 | H.B. Fuller Licensing And Financing Inc. | Starch-based corrugating adhesive containing soluble polyvinyl alcohol |
| JPH0725801B2 (en) * | 1986-08-11 | 1995-03-22 | 三和商事株式会社 | Processed starch manufacturing method |
| US5131953A (en) * | 1988-09-12 | 1992-07-21 | National Starch And Chemical Investment Holding Corporation | Continuous coupled jet-cooking/spray-drying process and novel pregelatinized high amylose starches prepared thereby |
-
1997
- 1997-04-11 CN CN97103905A patent/CN1074423C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101235093B (en) * | 2007-02-03 | 2010-12-22 | 烟台金华粉丝有限公司 | Special-purpose modified starch for bean vermicelli and producing technique thereof |
| CN101824094A (en) * | 2010-04-14 | 2010-09-08 | 江南大学 | Preparation and application of fatty acid starch ester by drum process |
| CN101824094B (en) * | 2010-04-14 | 2012-11-07 | 江南大学 | Preparation and application of fatty acid starch ester by drum process |
| CN104782989A (en) * | 2015-04-28 | 2015-07-22 | 防城港市雅美好饲料有限公司 | Method for preparing aquatic product feed by using pre-gelatinized starch |
| CN104799093A (en) * | 2015-04-28 | 2015-07-29 | 防城港市雅美好饲料有限公司 | Preparation method of pregelatinized starch for aquatic feed |
| CN104814271A (en) * | 2015-04-28 | 2015-08-05 | 防城港市雅美好饲料有限公司 | Preparation method for manufacturing feed with pre-gelatinized starch |
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| Publication number | Publication date |
|---|---|
| CN1074423C (en) | 2001-11-07 |
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