CN102125162B - Method for processing citric-acid fermented liquor - Google Patents
Method for processing citric-acid fermented liquor Download PDFInfo
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- CN102125162B CN102125162B CN2010106025625A CN201010602562A CN102125162B CN 102125162 B CN102125162 B CN 102125162B CN 2010106025625 A CN2010106025625 A CN 2010106025625A CN 201010602562 A CN201010602562 A CN 201010602562A CN 102125162 B CN102125162 B CN 102125162B
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- fermented liquor
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- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
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Abstract
The invention discloses a method for processing citric-acid fermented liquor, and the method provided by the invention is characterized in that after a citric acid fermentation process is completed, the obtained fermented liquor is not heated, but quickly filtered by directly using a belt filter; then, the filtered clear liquid of the fermented liquor is heated to 70-80 DEG C; and after the clear liquid is subjected to heating and protein flocculation, a filter aid is added into the clear liquid, then the obtained mixture is filtered by using a chamber filter so as to obtain a clear liquid tobe extracted. The acid content of the clear liquid to be extracted prepared by the method disclosed by the invention is more than 12%, and the protein content of the clear liquid is less than 0.25mg/100ml, therefore, the quality of the clear liquid is better than that of the clear liquid prepared under the existing processing level.
Description
Technical field
The invention belongs to the citric acid production field, specifically a kind of citric acid fermentation finishes the treatment process of secondary fermentation mash.
Background technology
At present, in the citric acid fermentation traditional technology, the pre-treatment of the fermentation liquid of fermentation ends all is the methods that adopt heating, its objective is to discharge endobacillary citric acid and flocculation albumen.Find yet in actual production process, detect, after the thalline heating, because its Dissolve things inside discharges, often cause acidity obviously to descend.Moreover, by protein content detect can find heating after, the protein content in the fermentation liquid filtrate almost doubles, and causes the feed liquid thickness, is unfavorable for filtering, the impurity component increases in the feed liquid simultaneously, has increased the burden of rear extraction.And tropina content declines to a great extent, and its feed value also reduces greatly.
Summary of the invention
In order to overcome the existing shortcoming of prior art, spy of the present invention has proposed a kind of citric acid fermentation and has finished the novel method that the secondary fermentation mash is processed.Be intended to improve karusen and cross the cleaner liquid quality, extract burden after reducing, improve simultaneously protein content in the thalli feed, increase its practical value.
Technical solutions according to the invention are as follows:
After citric acid fermentation technique finished, fermentation liquid did not heat, and directly utilizes belt filter rapidly fermentation liquid to be filtered;
Then, the karusen that filters out is crossed cleaner liquid, heat to 70-80 ℃;
Clear liquid after the albumen flocculation, adds flocculating aids through heating, filters with the van-type filter, makes clear liquid to be extracted.Its acidity is not less than 12%.
The processing technological flow of fermentation liquid of the present invention such as Figure of description 1.
Treatment process gained of the present invention clear liquid to be extracted contains the acidity height, and albumen contains and be lower than 0.25mg/100ml, and the clear liquid quality is better than existing processing horizontal.
Description of drawings:
Fig. 1 is the processing technological flow figure of fermentation liquid.
Embodiment:
Now with industrialization trial production example, further specify technical essential and the effect of the treatment process of citric-acid fermented liquor of the present invention.
After citric acid fermentation technique finished, fermentation liquid did not heat, and directly fermentor tank feed liquid-fermentation liquid is pressed in the storage tank in the very first time, immediately gets to belt filter from storage tank, filters, and the thalline filter residue is carried out the washing of three stage countercurrents.
The thalline that leaches through the belt filter, in water: the slag volume ratio is 2:1 ratio (water temperature 30-35 ℃), again sizes mixing, filter with the van-type filter, filter residue moisture basic controlling is in 60%, and residual acid is lower than 0.1%, through drying machine drying to water content below 12% as high protein feed.
After above-mentioned twice filtrate and washings mixed, be heated to 70-80 ℃ through plate-type heat exchanger, then enter stirred pot, keep 20Min after, albumen is finished flocculation, adds flocculating aids (perlite), through the precoating Plate Filtration, obtains qualified clear liquid to be extracted.
The filtrate that the van-type filter filters regathers for belt filter first step bath water as circulating belt filter bath water, and third stage washing is fermentor tank temperature lowering water (tap water, water temperature 30-35 ℃), collects after the washing to be used further to the secondary washing.
Through the production test statistics, use novel process of the present invention, the citric acid yield can improve 2.33%, and the fermentation clear liquid turbidity reduces by 28%, readily carbonizable substance content 26%, mycelia residue protein content improves 46%.The cleaner liquid quality of fermenting is greatly improved, the clear liquid of gained acidity 12%, and also albumen contains and is lower than 0.25mg/100ml; Greatly reduce rear extraction burden, improved simultaneously protein content in the thalli feed, increased its practical value.
New and old explained hereafter Data Comparison is as follows:
| ? | Existing technique | Novel process of the present invention |
| Fermented liquid falls sour | Acid fall after the heating on average 0.3% | Do not heat not acid |
| Fermentating liquid filtrate albumen | 0.044g/100ml | 0.025g/100ml |
| Thalli feed albumen | 23% | 33.5% |
| The fermentating liquid filtrate turbidity | 8-12 | 6-8 |
| The clear liquid readily carbonizable substance | 320 | 237 |
| Acid sludge press filtration yield | 94.81% | 97.14% |
Claims (1)
1. the treatment process of a citric-acid fermented liquor is characterized in that concrete technology step and parameter are as follows:
After citric acid fermentation technique finished, fermentation liquid did not heat, and directly is that fermentation liquid was pressed in the storage tank in the very first time with the fermentor tank feed liquid, immediately gets to belt filter from storage tank, filters, and the thalline filter residue is carried out the washing of three stage countercurrents;
The thalline that leaches through the belt filter, in water: the slag volume ratio is the 2:1 ratio, water temperature 30-35 ℃, again size mixing, filter with the van-type filter, filter residue moisture basic controlling is in 60%, residual acid is lower than 0.1%, arrives water content below 12%, as high protein feed through drying machine drying;
After above-mentioned twice filtrate and washings mixed, be heated to 70-80 ℃ through plate-type heat exchanger, then enter stirred pot, keep 20Min after, albumen is finished flocculation, adds the flocculating aids perlite, through the precoating Plate Filtration, obtains qualified clear liquid to be extracted;
The filtrate that the van-type filter filters is as circulating belt filter bath water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106025625A CN102125162B (en) | 2010-12-23 | 2010-12-23 | Method for processing citric-acid fermented liquor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106025625A CN102125162B (en) | 2010-12-23 | 2010-12-23 | Method for processing citric-acid fermented liquor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102125162A CN102125162A (en) | 2011-07-20 |
| CN102125162B true CN102125162B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106025625A Expired - Fee Related CN102125162B (en) | 2010-12-23 | 2010-12-23 | Method for processing citric-acid fermented liquor |
Country Status (1)
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| CN (1) | CN102125162B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747110B (en) * | 2012-06-20 | 2014-01-08 | 日照鲁信金禾生化有限公司 | Treatment process for waste sodium citrate mother solution |
| CN102747111A (en) * | 2012-08-06 | 2012-10-24 | 江南大学 | Process for producing citric acid with aerobic effluent serving as ingredient water |
| CN105399617A (en) * | 2015-12-21 | 2016-03-16 | 日照金禾博源生化有限公司 | Method for filtering and clarifying citric acid fermentation broth |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182079A (en) * | 2007-11-26 | 2008-05-21 | 日照金禾生化集团有限公司 | Citric acid mother liquor treatment process |
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2010
- 2010-12-23 CN CN2010106025625A patent/CN102125162B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182079A (en) * | 2007-11-26 | 2008-05-21 | 日照金禾生化集团有限公司 | Citric acid mother liquor treatment process |
Non-Patent Citations (1)
| Title |
|---|
| 天津大学科技处.发酵废醪液综合利用技术.《技术与市场》.2006,(第11期),19. * |
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| CN102125162A (en) | 2011-07-20 |
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Granted publication date: 20130102 Termination date: 20161223 |