CN112625980A - Process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum - Google Patents

Process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum Download PDF

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CN112625980A
CN112625980A CN202110057679.8A CN202110057679A CN112625980A CN 112625980 A CN112625980 A CN 112625980A CN 202110057679 A CN202110057679 A CN 202110057679A CN 112625980 A CN112625980 A CN 112625980A
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杨永
曹华伟
吕向云
娄百勇
远万里
宋玉忠
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Zhumadian Huazhong Chia Tai Co ltd
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    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P39/00Processes involving microorganisms of different genera in the same process, simultaneously
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    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P7/00Preparation of oxygen-containing organic compounds
    • C12P7/40Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
    • C12P7/52Propionic acid; Butyric acids

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Abstract

The invention discloses a process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum, which comprises the following steps: the fermentation process is three-stage, and comprises first-stage seed culture, second-stage seed culture and fermentation culture, shake flask seed culture of bacillus amyloliquefaciens and clostridium butyricum, inoculation in a first-stage seed culture medium for first-stage seed culture, then inoculation in a second-stage seed culture medium for second-stage seed culture, and finally inoculation in a fermentation tank culture medium for fermentation culture, wherein the fermentation culture is divided into two stages, the first-stage culture temperature is 30-35 ℃, when the fermentation pH is reduced to 4.5-5.0, reducing sugar is controlled for 10-20 hours, the temperature is raised to 35-37 ℃, the second-stage culture is carried out, and the pH is controlled to 6.0. The invention utilizes starch to produce micromolecular sugar to replace glucose in a fermentation culture medium, thereby reducing the cost of the glucose in the raw material, increasing the production efficiency of butyric acid, and mainly solving the problems of reducing the production cost and improving the fermentation efficiency.

Description

Process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum
Technical Field
The invention belongs to the technical field of butyric acid fermentation, and particularly relates to a process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum.
Background
Butyric acid is a product of microbial fermentation of carbohydrates in the rumen of ruminants and the colon of omnivores, has a strong bactericidal effect, and is considered as a potential substitute of antibiotics. The combination of butyric acid and antibiotics can improve the curative effect, and a large number of experiments show that the butyric acid has no toxic or side effect and is widely applied to medicines, functional health-care foods and additives of animal feeds. At present, butyric acid fermentation culture still mostly stays at a laboratory stage, the product concentration is basically about 10-30g/L, and the conditions of low fermentation efficiency and high cost exist in industrial production.
At present, the fermentation production of butyric acid is anaerobic culture, and thalli cannot grow or even die in the presence of oxygen in a fermentation environment; in addition, the pH of the cells is critical for optimal growth, and if the pH deviates from the optimal pH, the target product may not be obtained. The fermentation process is three-stage fermentation, and the first-stage seed culture process comprises the following steps: the temperature is 37 ℃, the anaerobic reaction is carried out, the rotating speed is 200rpm/min, the ph is natural, and the culture time is 20-24 h; secondary seed culture: the temperature is 37 ℃, the rotating speed is 200rpm/min, the culture period is 10-24h, the ORP is controlled to be-300 to-500 mv, and the pH is controlled to be 5.90; fermentation culture: the temperature is 37 ℃, the rotation speed is 150-; and (4) detecting the content of butyric acid after fermentation is finished, and adding a proper amount of sodium salt or calcium salt according to the concentration of the butyric acid to obtain the butyrate. The existing butyric acid fermentation technology has more byproducts, lower production efficiency and higher production cost, and is not suitable for modern industrial production.
Disclosure of Invention
The invention aims to provide a process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum, which has the advantages of simple fermentation condition, low cost and stable product quality and is suitable for industrial production.
In order to achieve the purpose, the invention adopts the technical scheme that:
the process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum comprises the following steps: the fermentation process is three-stage, and comprises first-stage seed culture, second-stage seed culture and fermentation culture, wherein the shake flask seed culture of the bacillus amyloliquefaciens and the clostridium butyricum is carried out for 17 hours, the first-stage seed culture is carried out by inoculating the bacillus amyloliquefaciens and the clostridium butyricum with the inoculation amount of 0.25 percent, then the second-stage seed culture is carried out by inoculating the bacillus amyloliquefaciens and the clostridium butyricum with the inoculation amount of 10 percent, the fermentation culture is carried out in a fermentation tank culture medium, the inoculation amount is 20 percent, the fermentation culture is divided into two stages, the culture temperature of the first stage is 30-35 ℃, when the fermentation pH is reduced to 4.5-5.0, the 10-20 hours are controlled, the reducing sugar is heated to 35-37 ℃, the second.
Further, the composition of the primary seed culture medium comprises: 0.5 to 0.6 percent of glucose, 1 to 2 percent of yeast extract powder, 0.5 to 1.0 percent of peptone and 0.05 to 0.2 percent of sodium chloride.
Further, the composition of the secondary seed culture medium comprises: 1 to 2 percent of yeast extract powder, 0.5 to 1 percent of peptone, 0.1 to 0.2 percent of soluble starch, 0.4 to 0.6 percent of glucose, 0.01 to 0.2 percent of manganese chloride, 0.05 to 0.06 percent of sodium chloride and 0.3 to 0.4 percent of sodium acetate.
Further, the composition of the fermenter medium comprises: 20% of starch, 1% of corn starch, 0.1-0.2% of ammonium sulfate, 0.4-0.6% of peptone, 0.1-0.2% of yeast powder, 0.1-0.2% of monopotassium phosphate, 0.2-0.4% of calcium carbonate, 0.07-0.8% of magnesium sulfate, 0.01-0.03% of manganese sulfate and 0.1-0.3% of defoaming agent. Further, the conditions of the primary seed culture are as follows: the culture temperature is 37 ℃, the rotation speed is 200rpm, and the culture time is 24-48 hours.
Further, the conditions of the secondary seed culture are as follows: the culture temperature was 37 ℃, the rotation speed was 200rpm, and the culture time was 24 hours.
Further, the second stage culture conditions of the fermentation culture are as follows: the pressure is 0.01Mpa, the rotating speed is 200rpm, and the culture time is 48 hours.
The invention has the advantages that:
the process for producing butyric acid by co-culture fermentation of the bacillus amyloliquefaciens and the clostridium butyricum provided by the invention comprises the steps of co-culture fermentation of the bacillus amyloliquefaciens and the clostridium butyricum, controlling the temperature to be 30 ℃ at the early stage of fermentation culture, promoting the bacillus amyloliquefaciens to carry out enzymolysis on starch into micromolecule sugar, detecting indexes of total sugar and reducing sugar, and controlling the optimal culture condition of a butyric acid strain at the middle and later stages to carry out butyric acid fermentation.
The invention utilizes starch to produce micromolecular sugar to replace glucose in a fermentation culture medium, thereby reducing the cost of the glucose in the raw material, increasing the production efficiency of butyric acid, and mainly solving the problems of reducing the production cost and improving the fermentation efficiency. The normal process comprises the steps of putting the tank into a fermentation tank with the butyric acid content of 45-50g/L, the acetic acid content of 5g/L and the lactic acid content of 2-3g/L, detecting the butyric acid content of 53-55g/L, the acetic acid content of 7g/L and the lactic acid content of 1-2g/L by HPLC (high performance liquid chromatography), and the experimental result shows that the content of the butyric acid in the tank after the improvement of the process is improved by about 10 percent compared with that in the initial process. The invention has simple fermentation condition, low cost and stable product quality, and is suitable for industrial production.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples, and the specific examples described herein are only for explaining the present invention and are not intended to limit the present invention.
Example 1
The invention discloses a process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum, which comprises the following steps: the fermentation process is three-stage, including first-stage seed culture, second-stage seed culture and fermentation culture. The shake flask seeds of the bacillus amyloliquefaciens and the clostridium butyricum are cultured for 17 hours and are inoculated in a first-level seed culture medium for first-level seed culture, the inoculation amount is 0.25 percent, and the first-level seed culture medium comprises the following components: 0.5% of glucose, 1% of yeast extract powder, 0.5% of peptone and 0.05% of sodium chloride, wherein the conditions of primary seed culture are as follows: the culture temperature was 37 ℃, the rotation speed was 200rpm, and the culture time was 24 hours.
Then inoculating the strain in a secondary seed culture medium for secondary seed culture, wherein the inoculation amount is 10 percent, and the secondary seed culture medium comprises the following components: 1% of yeast extract powder, 0.5% of peptone, 0.1% of soluble starch, 0.4% of glucose, 0.01% of manganese chloride, 0.05% of sodium chloride and 0.3% of sodium acetate. The conditions for secondary seed culture are as follows: the culture temperature was 37 ℃, the rotation speed was 200rpm, and the culture time was 24 hours.
Finally inoculating the strain into a fermentation tank culture medium for fermentation culture, wherein the inoculation amount is 20%, and the fermentation tank culture medium comprises the following components: 20% of starch, 1% of corn starch, 0.1% of ammonium sulfate, 0.4% of peptone, 0.1% of yeast powder, 0.1% of monopotassium phosphate, 0.2% of calcium carbonate, 0.07% of magnesium sulfate, 0.01% of manganese sulfate and 0.1% of defoaming agent. The fermentation culture is divided into two stages, the first stage culture temperature is 30 ℃, when the fermentation pH is reduced to 4.5, reducing sugar is controlled for 10 hours, the temperature is raised to 35 ℃, the second stage culture is carried out, the pH is controlled to 6.0, the pressure is 0.01Mpa, the rotating speed is 200rpm, and the culture time is 48 hours.
Example 2
The invention discloses a process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum, which comprises the following steps: the fermentation process is three-stage, including first-stage seed culture, second-stage seed culture and fermentation culture. The shake flask seeds of the bacillus amyloliquefaciens and the clostridium butyricum are cultured for 17 hours and are inoculated in a first-level seed culture medium for first-level seed culture, the inoculation amount is 0.25 percent, and the first-level seed culture medium comprises the following components: 0.6 percent of glucose, 2 percent of yeast extract powder, 1.0 percent of peptone and 0.2 percent of sodium chloride. The conditions for primary seed culture are as follows: the culture temperature was 37 ℃, the rotation speed was 200rpm, and the culture time was 48 hours.
Then inoculating the strain in a secondary seed culture medium for secondary seed culture, wherein the inoculation amount is 10 percent, and the secondary seed culture medium comprises the following components: 2% of yeast extract powder, 1% of peptone, 0.2% of soluble starch, 0.6% of glucose, 0.2% of manganese chloride, 0.06% of sodium chloride and 0.4% of sodium acetate. The conditions for secondary seed culture are as follows: the culture temperature was 37 ℃, the rotation speed was 200rpm, and the culture time was 24 hours.
Finally inoculating the strain into a fermentation tank culture medium for fermentation culture, wherein the inoculation amount is 20%, and the fermentation tank culture medium comprises the following components: 20% of starch, 1% of corn starch, 0.2% of ammonium sulfate, 0.6% of peptone, 0.2% of yeast powder, 0.2% of monopotassium phosphate, 0.4% of calcium carbonate, 0.8% of magnesium sulfate, 0.03% of manganese sulfate and 0.3% of defoaming agent. The fermentation culture is divided into two stages, the first stage culture temperature is 35 ℃, when the fermentation pH is reduced to 5.0, reducing sugar is controlled for 20 hours, the temperature is raised to 37 ℃, the second stage culture is carried out, the pH is controlled to 6.0, the pressure is 0.01Mpa, the rotating speed is 200rpm, and the culture time is 48 hours.

Claims (7)

1. The process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum comprises the following steps: the fermentation process is three-stage, and comprises first-stage seed culture, second-stage seed culture and fermentation culture, and is characterized in that the shaking flask seed culture of the bacillus amyloliquefaciens and the clostridium butyricum is inoculated in a first-stage seed culture medium for first-stage seed culture, then is inoculated in a second-stage seed culture medium for second-stage seed culture, and finally is inoculated in a fermentation tank culture medium for fermentation culture, the fermentation culture is divided into two stages, the first stage culture temperature is 30-35 ℃, when the fermentation pH is reduced to 4.5-5.0, the reducing sugar is controlled for 10-20 hours, the temperature is raised to 35-37 ℃, the second stage culture is carried out, and the pH is controlled to 6.0.
2. The process for producing butyric acid by co-culturing and fermenting bacillus amyloliquefaciens and clostridium butyricum according to claim 1, wherein the composition of the primary seed culture medium comprises: 0.5 to 0.6 percent of glucose, 1 to 2 percent of yeast extract powder, 0.5 to 1.0 percent of peptone and 0.05 to 0.2 percent of sodium chloride.
3. The process for producing butyric acid by co-culturing and fermenting bacillus amyloliquefaciens and clostridium butyricum according to claim 1, wherein the composition of the secondary seed culture medium comprises: 1 to 2 percent of yeast extract powder, 0.5 to 1 percent of peptone, 0.1 to 0.2 percent of soluble starch, 0.4 to 0.6 percent of glucose, 0.01 to 0.2 percent of manganese chloride, 0.05 to 0.06 percent of sodium chloride and 0.3 to 0.4 percent of sodium acetate.
4. The process for producing butyric acid by co-culturing and fermenting bacillus amyloliquefaciens and clostridium butyricum according to claim 1, wherein the composition of the fermentation tank culture medium comprises: 20% of starch, 1% of corn starch, 0.1-0.2% of ammonium sulfate, 0.4-0.6% of peptone, 0.1-0.2% of yeast powder, 0.1-0.2% of monopotassium phosphate, 0.2-0.4% of calcium carbonate, 0.07-0.8% of magnesium sulfate, 0.01-0.03% of manganese sulfate and 0.1-0.3% of defoaming agent.
5. The process for producing butyric acid by co-culturing and fermenting bacillus amyloliquefaciens and clostridium butyricum according to claim 1, wherein the conditions of the primary seed culture are as follows: the culture temperature is 37 ℃, the rotation speed is 200rpm, and the culture time is 24-48 hours.
6. The process for producing butyric acid by co-culturing and fermenting bacillus amyloliquefaciens and clostridium butyricum according to claim 1, wherein the secondary seed culture conditions are as follows: the culture temperature was 37 ℃, the rotation speed was 200rpm, and the culture time was 24 hours.
7. The process for producing butyric acid by co-culture and fermentation of bacillus amyloliquefaciens and clostridium butyricum according to claim 1, wherein the second-stage culture conditions of the fermentation culture are as follows: the pressure is 0.01Mpa, the rotating speed is 200rpm, and the culture time is 48 hours.
CN202110057679.8A 2021-01-15 2021-01-15 Process for producing butyric acid by co-culture fermentation of bacillus amyloliquefaciens and clostridium butyricum Pending CN112625980A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114410539A (en) * 2022-01-29 2022-04-29 山东泰山生力源集团股份有限公司 Preparation method of clostridium butyricum solid fermentation material and fermentation material
CN114698729A (en) * 2022-03-30 2022-07-05 播恩集团股份有限公司 Microecological preparation containing 5-methyltetrahydrofolic acid and preparation method and application thereof

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CN103627656A (en) * 2013-11-06 2014-03-12 天津科技大学 Solid state fermentation method of mixed bacteria of clostridium butyricum and bacillus coagulans
US20160068919A1 (en) * 2014-09-05 2016-03-10 Green Cellulosity Corporation Microorganism co-culture system and uses of the same
CN108504697A (en) * 2018-04-20 2018-09-07 安徽天邦生物技术有限公司 A kind of clostridium butyricum fermentation process significantly improving butyric acid yield
CN109825447A (en) * 2017-11-23 2019-05-31 朝阳华星生物工程有限公司 A kind of fermentation manufacturing technique of high yield clostridium butyricum
CN111500508A (en) * 2020-05-31 2020-08-07 郑州大学 Liquid mixed fermentation method of clostridium butyricum and bacillus coagulans

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Publication number Priority date Publication date Assignee Title
US20090035812A1 (en) * 2007-08-03 2009-02-05 National Chung Hsing University Microbial hydrogen-producing process and system thereof
CN103627656A (en) * 2013-11-06 2014-03-12 天津科技大学 Solid state fermentation method of mixed bacteria of clostridium butyricum and bacillus coagulans
US20160068919A1 (en) * 2014-09-05 2016-03-10 Green Cellulosity Corporation Microorganism co-culture system and uses of the same
CN109825447A (en) * 2017-11-23 2019-05-31 朝阳华星生物工程有限公司 A kind of fermentation manufacturing technique of high yield clostridium butyricum
CN108504697A (en) * 2018-04-20 2018-09-07 安徽天邦生物技术有限公司 A kind of clostridium butyricum fermentation process significantly improving butyric acid yield
CN111500508A (en) * 2020-05-31 2020-08-07 郑州大学 Liquid mixed fermentation method of clostridium butyricum and bacillus coagulans

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114410539A (en) * 2022-01-29 2022-04-29 山东泰山生力源集团股份有限公司 Preparation method of clostridium butyricum solid fermentation material and fermentation material
CN114410539B (en) * 2022-01-29 2024-04-12 山东泰山生力源集团股份有限公司 Preparation method of clostridium butyricum solid fermentation material and fermentation material
CN114698729A (en) * 2022-03-30 2022-07-05 播恩集团股份有限公司 Microecological preparation containing 5-methyltetrahydrofolic acid and preparation method and application thereof
CN114698729B (en) * 2022-03-30 2023-01-10 播恩集团股份有限公司 Microecological preparation containing 5-methyltetrahydrofolic acid and preparation method and application thereof

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