CN102372784A - Method for producing high-purity edible starch - Google Patents
Method for producing high-purity edible starch Download PDFInfo
- Publication number
- CN102372784A CN102372784A CN2010102616556A CN201010261655A CN102372784A CN 102372784 A CN102372784 A CN 102372784A CN 2010102616556 A CN2010102616556 A CN 2010102616556A CN 201010261655 A CN201010261655 A CN 201010261655A CN 102372784 A CN102372784 A CN 102372784A
- Authority
- CN
- China
- Prior art keywords
- temperature
- starch
- hour
- value
- milk
- 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.)
- Pending
Links
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention relates to a method for producing high-purity edible starch. The method is characterized by comprising the following steps of: 1, reducing the temperature of starch milk in a reaction tank to be below 30 DEG C, adding 3 to 20 weight parts of sodium hydroxide into 40 percent starch milk, and stirring at the temperature of below 30 DEG C for 0.5 to 1 hour; 2, adding 3 to 20 weight parts of epoxypropane, and stirring at the temperature of below 30 DEG C for 0.5 to 1 hour; 3, heating to the temperature of between 45 and 50 DEG C, preserving heat, starting to time, and keeping the temperature for 3 to 24 hours; and 4, regulating a pH value, namely regulating the pH value of medicines and ash which are remained after the washing of a swirler by using 5 percent hydrochloric acid to be between 6 and 7. The method has the advantages that: the utilization rate of the epoxypropane can be improved, the degree of substitution of products can be increased, and the pollution can be reduced; and the production cost is reduced, and environmental pollution can be greatly reduced.
Description
Technical field
The invention discloses the method that the kind in a kind of field of fine chemical improves the food starch substitution value.
Background technology
The medicine utilization ratio is low in the food starch production process at present, causes substitution value low, produces waste seriously, and pollution on the environment is more serious.
Summary of the invention
The purpose of this invention is to provide high purity food starch working method.Solution of the present invention is to it is characterized in that this method may further comprise the steps: 1, in the retort below the milk of starch greenhouse cooling to 30 ℃, in 40% milk of starch, add sodium hydroxide 3-20 part, stirred 0.5-1 hour 30 ℃ of following temperature; 2, add propylene oxide 3-20 part again, stirred 0.5-1 hour 30 ℃ of following temperature; 3, the 2nd step was accomplished post-heating to 45-50 ℃ of insulation, picked up counting, and kept temperature 3-24 hour; 4, regulate pH value: through the medicine and the ash content of swirler-wash residual, the hydrochloric acid with 5% is regulated pH value between the 6-7.
The invention has the beneficial effects as follows that the present invention can improve the utilization ratio of propylene oxide, increase the product substitution value, reduce and pollute.Both reduced production cost, can reduce pollution greatly again environment.
Embodiment
Embodiment 1, at first in the retort below the milk of starch greenhouse cooling to 30 ℃, adds 10 parts in sodium hydroxide; Stirred 0.5 hour; Added 10 parts of restir of propylene oxide then 0.5 hour,, be warming up to 45 ℃ of insulations 10 hours afterwards; Through the medicine and the ash content of swirler-wash residual, regulate pH value to 6.5 with 5% hydrochloric acid at last.
Embodiment 2, at first in the retort below the milk of starch greenhouse cooling to 30 ℃, add 20 parts in sodium hydroxide; Stirred 1 hour; Added 20 parts of restir of propylene oxide then 1 hour,, be warming up to 50 ℃ of insulations 15 hours afterwards; Through the medicine and the ash content of swirler-wash residual, regulate pH value to 6.8 with 5% hydrochloric acid at last.
Embodiment recited above describes preferred implementation of the present invention; Be not that design of the present invention and scope are limited; Under the prerequisite that does not break away from design concept of the present invention, the various improvement that those skilled in the art make technical scheme of the present invention all should fall into protection scope of the present invention; The technology contents that the present invention asks for protection all is documented in claims.
Claims (1)
1. high purity food starch working method is characterized in that this method may further comprise the steps: 1, in the retort below the milk of starch greenhouse cooling to 30 ℃, in 40% milk of starch, add sodium hydroxide 3-20 part, stirred 0.5-1 hour 30 ℃ of following temperature; 2, add propylene oxide 3-20 part again, stirred 0.5-1 hour 30 ℃ of following temperature; 3, the 2nd step was accomplished post-heating to 45-50 ℃ of insulation, picked up counting, and kept temperature 324 hours; 4, regulate pH value: through the medicine and the ash content of swirler-wash residual, the hydrochloric acid with 5% is regulated pH value between the 6-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102616556A CN102372784A (en) | 2010-08-25 | 2010-08-25 | Method for producing high-purity edible starch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102616556A CN102372784A (en) | 2010-08-25 | 2010-08-25 | Method for producing high-purity edible starch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102372784A true CN102372784A (en) | 2012-03-14 |
Family
ID=45792053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102616556A Pending CN102372784A (en) | 2010-08-25 | 2010-08-25 | Method for producing high-purity edible starch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102372784A (en) |
-
2010
- 2010-08-25 CN CN2010102616556A patent/CN102372784A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101717451A (en) | Method for enhancing substitution degree of hydroxypropyl starch | |
| CN103436174B (en) | Preparation method of rosin glycerin ester | |
| CN102249250B (en) | Method for purifying silicon dioxide | |
| CN102372784A (en) | Method for producing high-purity edible starch | |
| CN103664510B (en) | A kind of synthesis technique of para-bromo toluene | |
| CN102653564A (en) | Fine starch processing technique | |
| CN103159675A (en) | Method for preparing 2, 3-pyridine acid | |
| CN106478431B (en) | A kind of method of synthesis of trans hexamethylene dimethylamine | |
| CN102643188B (en) | Method for preparing 5-bromovalerate | |
| CN111925340A (en) | Preparation process of methyl mercapto thiadiazole | |
| CN102504035A (en) | Method for increasing substitution degree of hydroxypropul starch | |
| CN102452932B (en) | Preparation method for L-(+)-tartaric acid | |
| CN101492348A (en) | Method for producing 1-adamantane ethanol | |
| CN105418554A (en) | Furfural preparation method adopting bagasse as major raw material | |
| CN104513197A (en) | 2-aminonicotinic acid synthetic method | |
| CN102382000A (en) | Production method of D- para hydroxybenzene glycine | |
| CN103289825B (en) | Hydrolysis and hydrogenation process of palm oil and hydrolyzed crude acid | |
| CN101153005A (en) | Gluconic acid strontium and method of preparing the same | |
| CN110655494A (en) | Novel synthetic method of metribuzin intermediate | |
| CN101875673A (en) | Method for synthesizing glyphosate at low cost | |
| CN114315709B (en) | Synthesis method of 4-trifluoromethyl nicotinic acid | |
| CN102391098B (en) | Method for synthesizing sodium diacetate crystal in one step | |
| CN101537194A (en) | Method for multiply sterilizing and inhibiting bacteria of yams by ethanol | |
| CN102442958A (en) | Preparation method of isomer-removed tebuconazole | |
| CN105017192A (en) | Synthetic method of cis-4-(tetrahydropyrane-2-oxy)-2-butylene-1-ol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120314 |