CN102653564A - Fine starch processing technique - Google Patents
Fine starch processing technique Download PDFInfo
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- CN102653564A CN102653564A CN201110050432XA CN201110050432A CN102653564A CN 102653564 A CN102653564 A CN 102653564A CN 201110050432X A CN201110050432X A CN 201110050432XA CN 201110050432 A CN201110050432 A CN 201110050432A CN 102653564 A CN102653564 A CN 102653564A
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Abstract
The invention relates to a fine starch processing technique. The technique is characterized by comprising the following flows of: 1. lowering the temperature of starch milk in a reaction tank below 30 DEG C, adding 3-20 parts of sodium hydroxide to 40% starch milk and stirring the materials for 0.5-1 hour below 30 DEG C; 2. then adding 3-20 parts of epoxypropane and stirring the materials for 0.5-1 hour below 30 DEG C; 3. heating the materials to 45-50 DEG C and preserving heat after the step 2 is completed, starting timing and keeping the temperature for 3-24 hours; and 4. adjusting the pH value: adjusting the pH value of residual drugs and ash after washing with a cyclone to 6-7 with 5% hydrochloric acid. The technique has the following beneficial effects that: the use ratio of epoxypropane can be improved, the degree of substitution of the product can be increased and pollution can be reduced; and not only is the production cost reduced, but also the 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 meticulous starch complete processing.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 the interior 10 parts of restir of alkane of epoxy 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. meticulous starch complete processing 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050432XA CN102653564A (en) | 2011-03-03 | 2011-03-03 | Fine starch processing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110050432XA CN102653564A (en) | 2011-03-03 | 2011-03-03 | Fine starch processing technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102653564A true CN102653564A (en) | 2012-09-05 |
Family
ID=46729308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110050432XA Pending CN102653564A (en) | 2011-03-03 | 2011-03-03 | Fine starch processing technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102653564A (en) |
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2011
- 2011-03-03 CN CN201110050432XA patent/CN102653564A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Liu Jianbing Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Jianbing Document name: Notification of Publication of the Application for Invention |
|
| DD01 | Delivery of document by public notice |
Addressee: Liu Jianbing Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Liu Jianbing Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120905 |