CN109011725A - A kind of fermentation defoaming agent and preparation method thereof - Google Patents
A kind of fermentation defoaming agent and preparation method thereof Download PDFInfo
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- CN109011725A CN109011725A CN201811110818.3A CN201811110818A CN109011725A CN 109011725 A CN109011725 A CN 109011725A CN 201811110818 A CN201811110818 A CN 201811110818A CN 109011725 A CN109011725 A CN 109011725A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
- B01D19/0413—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing N-atoms
Abstract
The invention discloses a kind of fermentation defoaming agents and preparation method thereof；Fermentation defoaming agent includes the raw material of following parts by weight: 40-50 parts of castor oil, 26-34 parts of epoxy-terminated silicone oil, 18-22 parts of polyethylene glycol, 8-12 parts of polyetheramine, 12-16 parts of isopropanol, 2-6 parts of hydrophobic silicic aerogels, 4-8 parts of emulsifier；The present invention uses castor oil, epoxy-terminated silicone oil, polyethylene glycol, polyetheramine, isopropanol, hydrophobic silicic aerogels and emulsifier for raw material, it is prepared by above-mentioned preparation method, it is modified by carrying out polyether-modified and castor oil simultaneously to silicone oil, the defoaming agent of preparation has good antifoam performance and suds suppressing properties in fermentation, reduce defoaming agent usage amount, the influence to fermented product quality is reduced while reducing cost, ensure that fermentation production efficiency and product yield；Preparation process of the present invention is simple, it is easy to accomplish industrialized production is worthy to be popularized.
Description
Technical field
The present invention relates to a kind of food additives, specifically a kind of fermentation defoaming agent and preparation method thereof.
Background technique
Food additives are and to be added to improve the qualities such as food color for the needs of anti-corrosion and processing technology
Artificial synthesized or natural materials in food.China's food additives have 23 classifications at present, a kind more than 2000, including acid
Spend regulator, anticaking agent, defoaming agent, antioxidant, bleaching agent, leavening agent etc..A large amount of foams can be generated during the fermentation, this
The foam being stabilized a bit can not only reduce fermentation efficiency and also result in conversion ratio reduction, seriously affect fermentation industry operation, mesh
It is preceding mainly to be defoamed by adding defoaming agent.
Defoaming agent currently used for fermentation mainly has organic silicon defoamer and polyether antifoam agent, and organic silicon defoamer defoaming is fast
But suds suppressing properties are insufficient, polyether antifoam agent suds suppressing properties are preferable, but defoaming capacity is weaker, at present mainly by organosilicon
Carry out it is polyether-modified improve antifoam performance and suds suppressing properties, although performance increases, its adaptability is relatively poor,
It is difficult to guarantee its performance simultaneously in carbon source through fermentation and nitrogen source fermentation, it is therefore desirable to be further improved to adapt to production and need to ask.
Summary of the invention
The purpose of the present invention is to provide a kind of fermentation defoaming agents and preparation method thereof, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of fermentation defoaming agent, the raw material including following parts by weight: 40-50 parts of castor oil, 26-34 parts of epoxy-terminated silicone oil,
18-22 parts of polyethylene glycol, 8-12 parts of polyetheramine, 12-16 parts of isopropanol, 2-6 parts of hydrophobic silicic aerogels, 4-8 parts of emulsifier；
The epoxy-terminated silicone oil viscosity is 1000-2000cSt；
The molecular weight polyethylene glycol is 2500-3500；
The polyetheramine molecular weight is 1500-2500；
The emulsifier is S-60 and forms with glycerin monostearate by the weight ratio of 1:(2-4).
As a further solution of the present invention: the raw material including following parts by weight: 42-48 parts of castor oil, epoxy terminated
28-32 parts of silicone oil, 19-21 parts of polyethylene glycol, 9-11 parts of polyetheramine, 13-15 parts of isopropanol, 3-5 parts of hydrophobic silicic aerogels, emulsifier
5-7 parts.
As a further solution of the present invention: the raw material including following parts by weight: 45 parts of castor oil, epoxy-terminated silicone oil
30 parts, 20 parts of polyethylene glycol, 10 parts of polyetheramine, 14 parts of isopropanol, 4 parts of hydrophobic silicic aerogels, 6 parts of emulsifier.
As a further solution of the present invention: the emulsifier be S-60 with and glycerin monostearate by 1:3 weight
Than composition.
A kind of preparation method of fermentation defoaming agent, comprising the following steps:
(1) castor oil is weighed by weight and polyethylene glycol is added in reaction vessel and stirs, and castor oil parts by weight 0.1% are added
Antimony oxide, vacuumize, be warming up to 200-220 DEG C of reaction, control reaction temperature is 240-260 DEG C, reaction time 4-6h；
(2) polyetheramine and isopropanol are added into epoxy-terminated silicone oil, in 88-92 DEG C of back flow reaction 4-6h, removed under reduced pressure is different
Propyl alcohol；
(3) step (1) and step (2) gains are put into stirred autoclave, and hydrophobic silicic aerogels is added, in 200-
Insulated and stirred 4-6h under the conditions of 300rpm, 140-160 DEG C；
(4) step (3) gains are cooled to 75-85 DEG C, the deionized water of emulsifier and gains equivalent is added, continues to keep the temperature
Stirring 20-40min obtains defoaming agent.
As a further solution of the present invention: weighing castor oil in the step (1) by weight and polyethylene glycol is added
It is stirred in reaction vessel, and the antimony oxide of castor oil parts by weight 0.1% is added, vacuumized, be warming up to 210 DEG C of reactions, control reaction
Temperature is 250 DEG C, reaction time 5h.
As a further solution of the present invention: polyetheramine and isopropanol being added to epoxy terminated silicon in the step (2)
In oil, in 90 DEG C of back flow reaction 5h, removed under reduced pressure isopropanol.
As a further solution of the present invention: by step (1) and the investment stirring of step (2) gains in the step (3)
In reaction kettle, and hydrophobic silicic aerogels are added, the insulated and stirred 5h under the conditions of 250rpm, 150 DEG C.
As a further solution of the present invention: step (3) gains being cooled to 80 DEG C in the step (4), cream is added
The deionized water of agent and gains equivalent continues insulated and stirred 30min and obtains defoaming agent.
Compared with prior art, the beneficial effects of the present invention are: using castor oil, epoxy-terminated silicone oil, polyethylene glycol, gathering
Ether amines, isopropanol, hydrophobic silicic aerogels and emulsifier be raw material, be prepared by above-mentioned preparation method, by silicone oil simultaneously
It carries out polyether-modified and castor oil to be modified, the defoaming agent of preparation has good antifoam performance and antifoaming ability in fermentation
Can, defoaming agent usage amount is reduced, the influence to fermented product quality is reduced while reducing cost, ensure that fermenting and producing
Efficiency and product yield；Preparation process of the present invention is simple, it is easy to accomplish industrialized production is worthy to be popularized.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of fermentation defoaming agent, the raw material including following parts by weight: 40 parts of castor oil, 26 parts of epoxy-terminated silicone oil, poly- second two
18 parts of alcohol, 8 parts of polyetheramine, 12 parts of isopropanol, 2 parts of hydrophobic silicic aerogels, 4 parts of emulsifier；
The epoxy-terminated silicone oil viscosity is 1000cSt；
The molecular weight polyethylene glycol is 2500；
The polyetheramine molecular weight is 1500；
The emulsifier is S-60 and forms with glycerin monostearate by the weight ratio of 1:2.
A kind of preparation method of fermentation defoaming agent, comprising the following steps:
(1) castor oil is weighed by weight and polyethylene glycol is added in reaction vessel and stirs, and castor oil parts by weight 0.1% are added
Antimony oxide, vacuumize, be warming up to 200 DEG C of reactions, control reaction temperature is 240 DEG C, reaction time 4h；
(2) polyetheramine and isopropanol are added into epoxy-terminated silicone oil, in 88 DEG C of back flow reaction 4h, removed under reduced pressure isopropanol；
(3) by step (1) and step (2) gains investment stirred autoclave, and hydrophobic silicic aerogels are added, in 200rpm, 140
Insulated and stirred 4h under the conditions of DEG C；
(4) step (3) gains are cooled to 75 DEG C, the deionized water of emulsifier and gains equivalent is added, continued heat preservation and stir
It mixes 20min and obtains defoaming agent.
Embodiment 2
A kind of fermentation defoaming agent, the raw material including following parts by weight: 42 parts of castor oil, 28 parts of epoxy-terminated silicone oil, poly- second two
19 parts of alcohol, 9 parts of polyetheramine, 13 parts of isopropanol, 3 parts of hydrophobic silicic aerogels, 5 parts of emulsifier；
The epoxy-terminated silicone oil viscosity is 1200cSt；
The molecular weight polyethylene glycol is 2700；
The polyetheramine molecular weight is 1700；
The emulsifier is S-60 and forms with glycerin monostearate by the weight ratio of 1:2.5.
A kind of preparation method of fermentation defoaming agent, comprising the following steps:
(1) castor oil is weighed by weight and polyethylene glycol is added in reaction vessel and stirs, and castor oil parts by weight 0.1% are added
Antimony oxide, vacuumize, be warming up to 205 DEG C of reactions, control reaction temperature is 245 DEG C, reaction time 4.5h；
(2) polyetheramine and isopropanol are added into epoxy-terminated silicone oil, in 89 DEG C of back flow reaction 4.5h, removed under reduced pressure isopropyl
Alcohol；
(3) by step (1) and step (2) gains investment stirred autoclave, and hydrophobic silicic aerogels are added, in 225rpm, 145
Insulated and stirred 4.5h under the conditions of DEG C；
(4) step (3) gains are cooled to 77 DEG C, the deionized water of emulsifier and gains equivalent is added, continued heat preservation and stir
It mixes 22min and obtains defoaming agent.
Embodiment 3
A kind of fermentation defoaming agent, the raw material including following parts by weight: 45 parts of castor oil, 30 parts of epoxy-terminated silicone oil, poly- second two
20 parts of alcohol, 10 parts of polyetheramine, 14 parts of isopropanol, 4 parts of hydrophobic silicic aerogels, 6 parts of emulsifier；
The epoxy-terminated silicone oil viscosity is 1500cSt；
The molecular weight polyethylene glycol is 3000；
The polyetheramine molecular weight is 2000；
The emulsifier is S-60 and forms with glycerin monostearate by the weight ratio of 1:3.
A kind of preparation method of fermentation defoaming agent, comprising the following steps:
(1) castor oil is weighed by weight and polyethylene glycol is added in reaction vessel and stirs, and castor oil parts by weight 0.1% are added
Antimony oxide, vacuumize, be warming up to 210 DEG C of reactions, control reaction temperature is 250 DEG C, reaction time 5h；
(2) polyetheramine and isopropanol are added into epoxy-terminated silicone oil, in 90 DEG C of back flow reaction 5h, removed under reduced pressure isopropanol；
(3) by step (1) and step (2) gains investment stirred autoclave, and hydrophobic silicic aerogels are added, in 250rpm, 150
Insulated and stirred 5h under the conditions of DEG C；
(4) step (3) gains are cooled to 80 DEG C, the deionized water of emulsifier and gains equivalent is added, continued heat preservation and stir
It mixes 30min and obtains defoaming agent.
Embodiment 4
A kind of fermentation defoaming agent, the raw material including following parts by weight: 48 parts of castor oil, 32 parts of epoxy-terminated silicone oil, poly- second two
21 parts of alcohol, 11 parts of polyetheramine, 15 parts of isopropanol, 5 parts of hydrophobic silicic aerogels, 7 parts of emulsifier；
The epoxy-terminated silicone oil viscosity is 1700cSt；
The molecular weight polyethylene glycol is 3200；
The polyetheramine molecular weight is 2200；
The emulsifier is S-60 and forms with glycerin monostearate by the weight ratio of 1:3.5.
A kind of preparation method of fermentation defoaming agent, comprising the following steps:
(1) castor oil is weighed by weight and polyethylene glycol is added in reaction vessel and stirs, and castor oil parts by weight 0.1% are added
Antimony oxide, vacuumize, be warming up to 215 DEG C of reactions, control reaction temperature is 255 DEG C, reaction time 5.5h；
(2) polyetheramine and isopropanol are added into epoxy-terminated silicone oil, in 91 DEG C of back flow reaction 5.5h, removed under reduced pressure isopropyl
Alcohol；
(3) by step (1) and step (2) gains investment stirred autoclave, and hydrophobic silicic aerogels are added, in 275rpm, 155
Insulated and stirred 5.5h under the conditions of DEG C；
(4) step (3) gains are cooled to 82 DEG C, the deionized water of emulsifier and gains equivalent is added, continued heat preservation and stir
It mixes 35min and obtains defoaming agent.
Embodiment 5
A kind of fermentation defoaming agent, the raw material including following parts by weight: 50 parts of castor oil, 34 parts of epoxy-terminated silicone oil, poly- second two
22 parts of alcohol, 12 parts of polyetheramine, 16 parts of isopropanol, 6 parts of hydrophobic silicic aerogels, 8 parts of emulsifier；
The epoxy-terminated silicone oil viscosity is 2000cSt；
The molecular weight polyethylene glycol is 3500；
The polyetheramine molecular weight is 2500；
The emulsifier is S-60 and forms with glycerin monostearate by the weight ratio of 1:4.
A kind of preparation method of fermentation defoaming agent, comprising the following steps:
(1) castor oil is weighed by weight and polyethylene glycol is added in reaction vessel and stirs, and castor oil parts by weight 0.1% are added
Antimony oxide, vacuumize, be warming up to 220 DEG C of reactions, control reaction temperature is 260 DEG C, reaction time 6h；
(2) polyetheramine and isopropanol are added into epoxy-terminated silicone oil, in 92 DEG C of back flow reaction 6h, removed under reduced pressure isopropanol；
(3) by step (1) and step (2) gains investment stirred autoclave, and hydrophobic silicic aerogels are added, in 300rpm, 160
Insulated and stirred 6h under the conditions of DEG C；
(4) step (3) gains are cooled to 85 DEG C, the deionized water of emulsifier and gains equivalent is added, continued heat preservation and stir
It mixes 40min and obtains defoaming agent.
Comparative example 1
Using the fermentation of commercially available model X-1030FT with defoaming agent as comparative example 5.
Comparative example 2
Fermentation industry antifoam performance and suds suppressing properties test are carried out to embodiment 1-5 and comparative example 1 defoaming agent prepared,
In 500ml graduated cylinder, it is added 100ml foam liquid (using produced on-site carbon source through fermentation liquid as foam liquid), is then passed through with 50L/h speed
It is covered with the air-blowing head of micropore from the air-blowing of graduated cylinder bottom, closes air-blowing device at 500ml when foam reaches, 0.01g is added thereto
Defoaming agent, it is foam time, (time, shorter antifoam performance was better) that record foam, which disappeared to the liquid level time,；After foam completely disappears
Continue ventilation after ten minutes, measures the amount (the fewer suds suppressing properties of foam are better) of foam, test result, which is shown in Table, the results are shown in Table 1.
1 carbon source through fermentation test result of table
| Project | Foam time (s) | Foam volume (ml) |
| Embodiment 1 | 16 | 315 |
| Embodiment 2 | 14 | 312 |
| Embodiment 3 | 13 | 308 |
| Embodiment 4 | 15 | 310 |
| Embodiment 5 | 16 | 314 |
| Comparative example 1 | 28 | 412 |
From table 1 it follows that embodiment 1-5 is modified silicone oil by castor oil and polyethers, the defoaming agent of preparation is in carbon
Antifoam performance and suds suppressing properties are preferable in the fermentation of source, hence it is evident that are better than the performance of Commercial antifoam agent product comparative example 1.
Comparative example 3
Fermentation industry antifoam performance and suds suppressing properties test are carried out to embodiment 1-5 and comparative example 1 defoaming agent prepared,
In 500ml graduated cylinder, it is added 100ml foam liquid (using produced on-site nitrogen source fermentation liquid as foam liquid), is then passed through with 50L/h speed
It is covered with the air-blowing head of micropore from the air-blowing of graduated cylinder bottom, closes air-blowing device at 500ml when foam reaches, 0.01g is added thereto
Defoaming agent, it is foam time, (time, shorter antifoam performance was better) that record foam, which disappeared to the liquid level time,；After foam completely disappears
Continue ventilation after ten minutes, measures the amount (the fewer suds suppressing properties of foam are better) of foam, test result, which is shown in Table, the results are shown in Table 2.
2 nitrogen source fermentation test result of table
| Project | Foam time (s) | Foam volume (ml) |
| Embodiment 1 | 19 | 332 |
| Embodiment 2 | 18 | 328 |
| Embodiment 3 | 16 | 318 |
| Embodiment 4 | 17 | 324 |
| Embodiment 5 | 18 | 329 |
| Comparative example 1 | 38 | 448 |
From Table 2, it can be seen that embodiment 1-5 is modified silicone oil by castor oil and polyethers, the defoaming agent of preparation is in nitrogen
Antifoam performance and suds suppressing properties are preferable in the fermentation of source, hence it is evident that are better than the performance of Commercial antifoam agent product comparative example 1.
The preferred embodiment of the patent is described in detail above, but be not restricted to that above embodiment, at this
Field technical staff within the scope of knowledge, can also make a variety of changes under the premise of not departing from this patent objective.
Claims (9)
1. a kind of fermentation defoaming agent, which is characterized in that the raw material including following parts by weight: 40-50 parts of castor oil, epoxy terminated
26-34 parts of silicone oil, 18-22 parts of polyethylene glycol, 8-12 parts of polyetheramine, 12-16 parts of isopropanol, 2-6 parts of hydrophobic silicic aerogels, emulsifier
4-8 parts；
The epoxy-terminated silicone oil viscosity is 1000-2000cSt；
The molecular weight polyethylene glycol is 2500-3500；
The polyetheramine molecular weight is 1500-2500；
The emulsifier is S-60 and forms with glycerin monostearate by the weight ratio of 1:(2-4).
2. fermentation defoaming agent according to claim 1, which is characterized in that the raw material including following parts by weight: castor oil
42-48 parts, it is 28-32 parts of epoxy-terminated silicone oil, 19-21 parts of polyethylene glycol, 9-11 parts of polyetheramine, 13-15 parts of isopropanol, hydrophobic white
3-5 parts of carbon black, 5-7 parts of emulsifier.
3. fermentation defoaming agent according to claim 1, which is characterized in that the raw material including following parts by weight: castor oil
45 parts, 30 parts of epoxy-terminated silicone oil, 20 parts of polyethylene glycol, 10 parts of polyetheramine, 14 parts of isopropanol, 4 parts of hydrophobic silicic aerogels, emulsifier
6 parts.
4. fermentation defoaming agent according to claim 1, which is characterized in that the emulsifier be S-60 with and monostearate it is sweet
Grease is formed by the weight ratio of 1:3.
5. a kind of preparation method of the fermentation defoaming agent as described in claim 1-4 is any, which is characterized in that including following step
It is rapid:
(1) castor oil is weighed by weight and polyethylene glycol is added in reaction vessel and stirs, and castor oil parts by weight 0.1% are added
Antimony oxide, vacuumize, be warming up to 200-220 DEG C of reaction, control reaction temperature is 240-260 DEG C, reaction time 4-6h；
(2) polyetheramine and isopropanol are added into epoxy-terminated silicone oil, in 88-92 DEG C of back flow reaction 4-6h, removed under reduced pressure is different
Propyl alcohol；
(3) step (1) and step (2) gains are put into stirred autoclave, and hydrophobic silicic aerogels is added, in 200-
Insulated and stirred 4-6h under the conditions of 300rpm, 140-160 DEG C；
(4) step (3) gains are cooled to 75-85 DEG C, the deionized water of emulsifier and gains equivalent is added, continues to keep the temperature
Stirring 20-40min obtains defoaming agent.
6. the preparation method of fermentation defoaming agent as claimed in claim 5, which is characterized in that in the step (1) by weight
It weighs castor oil and polyethylene glycol is added in reaction vessel and stirs, and the antimony oxide of castor oil parts by weight 0.1% is added, vacuumize,
210 DEG C of reactions are warming up to, control reaction temperature is 250 DEG C, reaction time 5h.
7. the preparation method of fermentation defoaming agent as claimed in claim 5, which is characterized in that by polyetheramine in the step (2)
It is added with isopropanol into epoxy-terminated silicone oil, in 90 DEG C of back flow reaction 5h, removed under reduced pressure isopropanol.
8. the preparation method of fermentation defoaming agent as claimed in claim 5, which is characterized in that by step (1) in the step (3)
In step (2) gains investment stirred autoclave, and hydrophobic silicic aerogels are added, the insulated and stirred under the conditions of 250rpm, 150 DEG C
5h。
9. the preparation method of fermentation defoaming agent as claimed in claim 5, which is characterized in that by step (3) in the step (4)
Gains are cooled to 80 DEG C, and the deionized water of emulsifier and gains equivalent is added, and continue insulated and stirred 30min and obtain defoaming agent.
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| CN201811110818.3A CN109011725A (en) | 2018-09-22 | 2018-09-22 | A kind of fermentation defoaming agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110818.3A CN109011725A (en) | 2018-09-22 | 2018-09-22 | A kind of fermentation defoaming agent and preparation method thereof |
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ID=64618017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647009A (en) * | 2019-01-10 | 2019-04-19 | 济南航晨生物科技有限公司 | A kind of dedicated defoaming agent of bacillus subtilis liquid fermentation and preparation method |
| CN112295270A (en) * | 2020-10-11 | 2021-02-02 | 金华市铨沥科技有限公司 | Preparation method of defoaming agent for fermentation production of epothilone |
-
2018
- 2018-09-22 CN CN201811110818.3A patent/CN109011725A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647009A (en) * | 2019-01-10 | 2019-04-19 | 济南航晨生物科技有限公司 | A kind of dedicated defoaming agent of bacillus subtilis liquid fermentation and preparation method |
| CN112295270A (en) * | 2020-10-11 | 2021-02-02 | 金华市铨沥科技有限公司 | Preparation method of defoaming agent for fermentation production of epothilone |
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Application publication date: 20181218 |