CN1074423C - Predextrinizing finishing starch and its preparing method - Google Patents
Predextrinizing finishing starch and its preparing methodInfo
- Publication number
- CN1074423C CN1074423C CN97103905A CN97103905A CN1074423C CN 1074423 C CN1074423 C CN 1074423C CN 97103905 A CN97103905 A CN 97103905A CN 97103905 A CN97103905 A CN 97103905A CN 1074423 C CN1074423 C CN 1074423C
- Authority
- CN
- China
- Prior art keywords
- starch
- predextrinizing
- finishing
- product
- feed liquid
- 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.)
- Expired - Fee Related
Links
Abstract
The present invention provides pre-pasting finishing starch and a preparing method thereof. A finishing agent, starch and water are prepared into feed liquid whose pH value is from 7.0 to 11.0, and the temperature of the feed liquid is kept; the feed liquid is conveyed into a roller drier to be prepasted and dried, and the dried feed liquid is crushed to obtain a pre-pasting finishing starch product with certain fineness. The product has high viscoelasticity. The Brabander viscosity number of 5% water solution of the product is from 500 to 650BU, the measuring value of a rotational viscometer is from 1500 to 4000 cP, and the wire drawing length is from 100 to 150 cm. The product can be widely used for the feed field, the building material field, the petroleum drilling field, chemical industry, etc.
Description
The present invention relates to a kind of Predextrinizing finishing starch, specifically a kind of starch through pre-gelatinization carry out simultaneously Predextrinizing finishing starch preparation method that chemically modified produces and by its make product.
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 the Predextrinizing finishing starch preparation method that chemically modified is produced 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 preparation method reaches by its product that makes: by containing boron substance as 0.001～0.6 part of modifier, be preferably 0.0025～0.08 part, starch 25-40 part 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 12cm 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 (6)
1. Predextrinizing finishing starch preparation method, it is characterized in that in the feed liquid that 25～40 weight part starch and 60～75 weight parts waters are made into, add and contain boron substance modifier 0.001～0.6 weight part, flavouring liquid pH value is 7.0～11.0, feed liquid is incubated in 10～55 ℃, be delivered to roller dryer and carry 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, it is characterized in that containing the boron substance modifier is 0.0025～0.08 weight 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 available hydrochloric acid, acetic acid or sodium hydroxide flavouring liquid pH value are 7.0～11.0.
5. as claim 1 or 4 described Predextrinizing finishing starch preparation methods, it is characterized in that starch can adopt tapioca (flour), yam starch or their mixture.
6. Predextrinizing finishing starch that can make by each method in the claim 1～5, after wherein Predextrinizing finishing starch product 5% (weight) aqueous solution is heated to 80 ℃, be cooled to 20 ℃, brabender viscosity number 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.
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 CN1163272A (en) | 1997-10-29 |
| CN1074423C true CN1074423C (en) | 2001-11-07 |
Family
ID=5166974
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1074423C (en) |
Families Citing this family (5)
| 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 |
| 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 |
| 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 |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0162682A2 (en) * | 1984-05-21 | 1985-11-27 | H.B. FULLER LICENSING & FINANCING, INC. | Fast setting starch-based corrugating adhesive and use thereof in manufacture of corrugated board |
| JPS6343902A (en) * | 1986-08-11 | 1988-02-25 | Sanwa Shoji Kk | Production of modified starch |
| 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
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0162682A2 (en) * | 1984-05-21 | 1985-11-27 | H.B. FULLER LICENSING & FINANCING, INC. | Fast setting starch-based corrugating adhesive and use thereof in manufacture of corrugated board |
| JPS6343902A (en) * | 1986-08-11 | 1988-02-25 | Sanwa Shoji Kk | Production of modified starch |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1163272A (en) | 1997-10-29 |
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