CN103045671A - Recycling method of condensed water in monosodium glutamate fermentation - Google Patents
Recycling method of condensed water in monosodium glutamate fermentation Download PDFInfo
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- CN103045671A CN103045671A CN2012105620444A CN201210562044A CN103045671A CN 103045671 A CN103045671 A CN 103045671A CN 2012105620444 A CN2012105620444 A CN 2012105620444A CN 201210562044 A CN201210562044 A CN 201210562044A CN 103045671 A CN103045671 A CN 103045671A
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Abstract
The invention discloses a recycling method of condensed water in monosodium glutamate fermentation, which is used for collecting condensed water in the fermentation process of an original fermentation medium, and the condensed water replaces primary water to be used for the fermentation medium after adjustment so as to achieve fermentation production of glutamic acid. Compared with the prior art, the recycling method has the characteristics of saving water, energy and raw materials and protecting the environment, is widely applied to fermentation, chemical engineering and food and has excellent popularization and application values.
Description
Technical field
The invention belongs to the glutamate production field, specifically relate to the method that water of condensation is recycled in a kind of monosodium glutamate industry.
Background technology
Water resources is not the resource of " inexhaustible; nexhaustible ", China is exactly one of relative country that lacks of water resources, the 6th in the Freshwater resources total amount row world, but only account for per capita the world per capita 1/3 because space-time and areal distribution is different, add the waste of use, particularly along with the aggravation of polluting, water resources problems is more and more outstanding.Vigorously advocate water saving, the effectively anti-pollution of harnessing the river realizes waste water reclaiming, becomes Sustainable development problem in the urgent need to address.
L-glutamic acid mainly is take liquid glucose, inorganic salt, corn steep liquor and molasses as raw material at present, utilizes the secondary fermentation of water batching to form.Fermenting process uses a large amount of water to prepare burden, and water consumption is huge.And the concentrated water of condensation that produces of fermented liquid is because ammonia-nitrogen content is high, directly discharging can cause environmental pollution, so must administer with methods such as biologies before discharging, enterprise drops into high cost for administering sewage again, makes the production cost of L-glutamic acid be difficult to reduce.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical assignment of the present invention provides the method that water of condensation is recycled in the low monosodium glutamate industry of a kind of environmental protection, running cost.
Technical scheme of the present invention is as follows:
The method that the gourmet powder fermenting water of condensation is recycled is the water of condensation of collecting in the former fermention medium fermenting process, replaces a water to be back to and adjusts the post-fermentation and culture base, is used for fermentative production L-glutamic acid.
Foregoing method, preferred scheme is that the component of former fermention medium and mass content are: molasses 1.8-2.7 ‰; Corn steep liquor 0.6-5.0 ‰; Na
2HPO
41.2-3.6 ‰; MgSO
40.2-0.8 ‰; KCL 1.2-3.0 ‰.
Foregoing method, preferred scheme is that the zymotechnique step of former fermention medium is:
(1) water and each component of fermention medium are squeezed into material-compound tank, mix;
(2) squeezed into fermentor tank in 30 minutes 118～125 ℃ of lower continuous sterilization sterilizations;
(3) culture transferring accesses fermentor tank by seeding tank with seed;
(4) 33 ℃～37 ℃ bottom fermentations 32 hours;
(5) after the fermentation ends, at 70～72 ℃, utilize evaporation concentration to extract L-glutamic acid under 0.08～0.09Mpa vacuum tightness.
Foregoing method, preferred scheme is to collect the water of condensation in the fermenting process.
Foregoing method, preferred scheme is that component and the mass content of adjusting the post-fermentation and culture base are: molasses 1.5-2.5 ‰; Corn steep liquor 0.5-4.5 ‰; Na
2HPO
41.2-3.6 ‰; MgSO
40.1-0.8 ‰; KCL 1.0-3.0 ‰.
Foregoing method, preferred scheme is that the zymotechnique step of adjusting the post-fermentation and culture base is:
(1) water of condensation and each component of fermention medium are squeezed into material-compound tank, mix;
(2) squeezed into fermentor tank in 30 minutes 118 ℃～125 ℃ lower continuous sterilization sterilizations;
(3) culture transferring accesses fermentor tank by seeding tank with seed;
(4) 33 ℃～37 ℃ bottom fermentations 32 hours;
(5) after the fermentation ends, at 70～72 ℃, evaporation concentration is extracted L-glutamic acid under 0.08～0.09Mpa vacuum tightness.
Foregoing method, preferably scheme is, collects the water of condensation of each fermenting process, replaces a water to be used for fermentative production L-glutamic acid.
The method that water of condensation is recycled in a kind of monosodium glutamate industry provided by the invention, that fermented liquid is collected the water of condensation that produces by evaporation concentration, the production technique prescription suitably is directly used in the fermentation batching after the adjustment, and step is as follows: the fermented liquid of 1, collecting in producing is for subsequent use; 2, the fermented waste fluid of collecting is carried out evaporation concentration, collect the water of condensation that produces; 3, to after the suitably adjustment of filling a prescription, the water of condensation of collecting is directly used in batching; By method provided by the invention and device, with saving water resource, reduce environmental pollutant.
Compared with prior art, technical superiority of the present invention also is:
(1) energy-conservation: because condensate temperature is higher, so can reduce the steam consumption in the fermenting process;
(2) water saving: water of condensation is recycled, and replaces one time water, reduces the consumption of a water resources;
(3) behind the water circulation use, when having protected environment, for enterprise has saved the waste water control expense;
(4) technique simple, be easy to realize.
Embodiment
Describe details and the working condition of the technical scheme of the present invention's proposition below in conjunction with embodiment in detail, but be not limited to this.
EmbodimentThe method that the gourmet powder fermenting water of condensation is recycled is collected the water of condensation in the former fermention medium fermenting process, replaces a water to be back to and adjusts the post-fermentation and culture base, is used for fermentative production L-glutamic acid.
(1) former fermention medium fermentation:
Fermentation culture based raw material: molasses 1.8-2.7 ‰; Corn steep liquor 0.6-5.0 ‰; Na
2HPO
41.2-3.6 ‰; MgSO
40.2-0.8 ‰; KCL 1.2-3.0 ‰.
The zymotechnique step:
1, fermentation batching: use a water to squeeze in the material-compound tank, squeeze into corn steep liquor, molasses, inorganic salt input material-compound tank according to the above-mentioned raw materials prescription, mix;
2, squeezed into fermentor tank in 30 minutes 118 ℃～125 ℃ lower continuous sterilization sterilizations;
3, culture transferring accesses fermentor tank by seeding tank with seed;
4,33 ℃～37 ℃ bottom fermentations 32 hours;
5, after the fermentation ends, at 70 ℃～72 ℃, utilize the evaporation concentration device fermented liquid to concentrate under 0.08MP～0.09MP vacuum tightness, get concentrated solution 60000L, the gained concentrated solution is used for extracting L-glutamic acid 7500kg.
(2) collect the water of condensation that former fermention medium fermentation produces.
(3) replace a water to be used for fermentation with water of condensation.
Fermentation culture based raw material: molasses 1.5-2.5 ‰; Corn steep liquor 0.5-4.5 ‰; Na
2HPO
41.2-3.6 ‰; MgSO
40.1-0.8 ‰; KCL 1.0-3.0 ‰.
The zymotechnique step:
1, collect fermented liquid to holding tank, for subsequent use;
2, fermentation batching: the water of condensation that the fermented liquid evaporation concentration produces is squeezed in the material-compound tank, squeezed into corn steep liquor, molasses, inorganic salt input material-compound tank according to the above-mentioned raw materials prescription, mix;
3, squeezed into fermentor tank in 30 minutes 120 ℃～130 ℃ lower continuous sterilization sterilizations;
4, culture transferring accesses fermentor tank by seeding tank with seed;
5,33 ℃～37 ℃ bottom fermentations 32 hours;
6, after the fermentation ends, at 70 ℃～72 ℃, utilize evaporation concentration device that fermented liquid is concentrated under 0.08MP～0.09MP vacuum tightness, get concentrated solution 60000L, the gained concentrated solution is used for extracting L-glutamic acid 7960kg.
After one circulation is finished, repeat above-mentioned 2-6 operation and get final product.
Utilize the result of implementation of the method for gourmet powder fermenting water of condensation recycling of the present invention, see Table 1.
Table 1 evaluation
As can be seen from Table 1, use water of condensation in the situation that reduce the raw material usage quantity, glutamic acid yield is than using a water to increase by 6.1%.
Claims (7)
1. the method for gourmet powder fermenting water of condensation recycling is characterized in that, collects the water of condensation in the former fermention medium fermenting process, replaces a water to be back to and adjusts post-fermentation and culture base, fermentative production L-glutamic acid.
2. method according to claim 1 is characterized in that, the component of former fermention medium and mass content are: molasses 1.8-2.7 ‰; Corn steep liquor 0.6-5.0 ‰; Na
2HPO
41.2-3.6 ‰; MgSO
40.2-0.8 ‰; KCL 1.2-3.0 ‰.
3. method according to claim 2 is characterized in that, the zymotechnique step of former fermention medium is:
(1) water and each component of fermention medium are squeezed into material-compound tank, mix;
(2) squeezed into fermentor tank in 30 minutes 118～125 ℃ of lower continuous sterilization sterilizations;
(3) culture transferring accesses fermentor tank by seeding tank with seed;
(4) 33 ℃～37 ℃ bottom fermentations 32 hours;
(5) after the fermentation ends, at 70～72 ℃, utilize evaporation concentration to extract L-glutamic acid under 0.08～0.09Mpa vacuum tightness.
4. method according to claim 3 is characterized in that, collects the water of condensation in the fermenting process.
5. method according to claim 1 is characterized in that, component and the mass content of adjusting the post-fermentation and culture base are: molasses 1.5-2.5 ‰; Corn steep liquor 0.5-4.5 ‰; Na
2HPO
41.2-3.6 ‰; MgSO
40.1-0.8 ‰; KCL 1.0-3.0 ‰.
6. method according to claim 5 is characterized in that, the zymotechnique step of adjusting the post-fermentation and culture base is:
(1) water of condensation and each component of fermention medium are squeezed into material-compound tank, mix;
(2) squeezed into fermentor tank in 30 minutes 118 ℃～125 ℃ lower continuous sterilization sterilizations;
(3) culture transferring accesses fermentor tank by seeding tank with seed;
(4) 33 ℃～37 ℃ bottom fermentations 32 hours;
(5) after the fermentation ends, at 70～72 ℃, evaporation concentration is extracted L-glutamic acid under 0.08～0.09Mpa vacuum tightness.
7. arbitrary described method is characterized in that according to claim 1-6, collects the water of condensation of each fermenting process, replaces a water to be used for fermentative production L-glutamic acid.
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| CN2012105620444A CN103045671A (en) | 2012-12-23 | 2012-12-23 | Recycling method of condensed water in monosodium glutamate fermentation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086091A (en) * | 2016-06-17 | 2016-11-09 | 青岛琅琊台集团股份有限公司 | A kind of itaconic acid concentrates the condensed water method for itaconic acid fermentation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029319A (en) * | 2007-03-30 | 2007-09-05 | 菱花集团有限公司 | Environmental-protecting process for fermenting glutamic acid |
| CN101032320A (en) * | 2007-03-30 | 2007-09-12 | 菱花集团有限公司 | Crystallization and concentration of monosodium glutamate and recycling method of second-time refrigerating excess heat of steam |
| CN101156675A (en) * | 2007-11-08 | 2008-04-09 | 江南大学 | Glutamic acid abstraction technics combining rotation crystal |
| CN101993280A (en) * | 2009-08-10 | 2011-03-30 | 江南大学 | Method for producing compound fertilizer by using fermentation glutamate extraction waste liquor |
| CN102452702A (en) * | 2010-10-15 | 2012-05-16 | 中粮生物化学（安徽）股份有限公司 | Recycling method of condensed water |
-
2012
- 2012-12-23 CN CN2012105620444A patent/CN103045671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029319A (en) * | 2007-03-30 | 2007-09-05 | 菱花集团有限公司 | Environmental-protecting process for fermenting glutamic acid |
| CN101032320A (en) * | 2007-03-30 | 2007-09-12 | 菱花集团有限公司 | Crystallization and concentration of monosodium glutamate and recycling method of second-time refrigerating excess heat of steam |
| CN101156675A (en) * | 2007-11-08 | 2008-04-09 | 江南大学 | Glutamic acid abstraction technics combining rotation crystal |
| CN101993280A (en) * | 2009-08-10 | 2011-03-30 | 江南大学 | Method for producing compound fertilizer by using fermentation glutamate extraction waste liquor |
| CN102452702A (en) * | 2010-10-15 | 2012-05-16 | 中粮生物化学（安徽）股份有限公司 | Recycling method of condensed water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086091A (en) * | 2016-06-17 | 2016-11-09 | 青岛琅琊台集团股份有限公司 | A kind of itaconic acid concentrates the condensed water method for itaconic acid fermentation |
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Application publication date: 20130417 |