WO1997019978A1 - Support granulaire pour l'immobilisation de cellules microbiennes et appareil de production de ce support granulaire - Google Patents
Support granulaire pour l'immobilisation de cellules microbiennes et appareil de production de ce support granulaire Download PDFInfo
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- WO1997019978A1 WO1997019978A1 PCT/JP1996/003439 JP9603439W WO9719978A1 WO 1997019978 A1 WO1997019978 A1 WO 1997019978A1 JP 9603439 W JP9603439 W JP 9603439W WO 9719978 A1 WO9719978 A1 WO 9719978A1
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- granular
- granular carrier
- metal ions
- gelling
- carrier
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Classifications
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/04—Enzymes or microbial cells immobilised on or in an organic carrier entrapped within the carrier, e.g. gel or hollow fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/062—Polyethers
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N11/00—Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
- C12N11/02—Enzymes or microbial cells immobilised on or in an organic carrier
- C12N11/10—Enzymes or microbial cells immobilised on or in an organic carrier the carrier being a carbohydrate
Definitions
- Granular carrier for immobilizing microbial cells and apparatus for producing granular carrier
- the present invention relates to a granular carrier for immobilizing microbial cells and an apparatus for producing the granular carrier, and more particularly, to a carrier by adding a microbial cell immobilizing carrier to a microbial suspension and activating the same.
- the present invention relates to a granular carrier for immobilizing microbial cells capable of easily attaching and immobilizing microorganisms on a surface, and an apparatus for producing the granular carrier.
- Immobilized microorganisms have attracted attention in recent years because they enable efficient continuous fermentation when used in bioreactors.
- the immobilization method using the entrapment method encloses a previously cultured microbial suspension in a polymer gel. Since complicated operations are required, there is a problem that the price is extremely high.
- the physical adsorption method has an advantage that the carrier can be immobilized simply by throwing the carrier into the suspension of microorganisms, and does not require the operation of entrapping microorganisms unlike the entrapment method.
- carriers used for the physical adsorption method carriers such as activated carbon, porous glass, celite, chitin, and cellulose are known.
- the present invention relates to a microbial cell having a surface structure suitable for adhesion of microorganisms and having a specific gravity in the range of 1.0 to 1.20 and which does not impair the fluidity in a fermenter or bioreactor. It is a first object of the present invention to provide a granular carrier for immobilizing the particles.
- the dropped granular gel is taken up in a petri dish such that the particles are arranged in a line, and is irradiated with ultraviolet light from a high-pressure mercury lamp while vibrating.
- This device can irradiate with a constant light intensity, but has the problem that production efficiency is extremely low instead of continuous production.
- the present inventor has previously proposed an apparatus in which a dropped gel is moved by a transparent spiral tube, and at that time, an actinic ray is irradiated to produce a granular material (Japanese Patent Application Laid-Open No. 60-10 / 1988). No. 6 836).
- This device includes a tank 18 containing a liquid composition containing a photocurable resin, a polymerization initiator, and a water-soluble polysaccharide capable of gelling, a drip device 20 for dropping the liquid composition from a nozzle, and A gel container 22 containing an aqueous medium containing polyvalent metal ions is provided.
- the liquid composition is supplied from the tank 18 to the dropping device 20 via the transport tube 24.
- the dropping device 20 stores a predetermined amount of the liquid composition, is provided with a nozzle 30 at a lower position, and drops the liquid composition from the tip of the nozzle. Drops of the liquid composition fall into the aqueous medium containing polyvalent metal ions contained in the gelling container 22 and gelate, and then pass through the tube 31 connected to the bottom surface of the gelling container 22. Provide to light irradiator 1 2 Be paid.
- the active light is irradiated from the light source 32 disposed close to the liquid gel, and the photocurable resin in the particulate matter undergoes a photoreaction.
- the particulate matter that has increased in strength due to the photoreaction moves to the particle collection section 14 and is stored in the collection container.
- the aqueous medium is returned to the gelling container 22 by the pump 48 and is used repeatedly.
- This granular material manufacturing apparatus has excellent advantages such as continuous production and light irradiation for a relatively long time.
- At least one light source is required for one tube, and the production efficiency is low.
- the present invention has been made in view of these problems, and has been developed as a particulate carrier for immobilization. It is a second object of the present invention to provide an apparatus for efficiently producing a large amount of granular material containing a curable resin.
- the present inventors have conducted intensive studies in order to achieve the above-mentioned object, and as a result, the adhesion of microorganisms has been found to involve, for example, hydrogen bonding between the carrier and the microorganism and hydrophobic bonding between the hydrophobic portion of the carrier and the hydrophobic portion of the cell wall of the microorganism. It is known that when the surface of the carrier is strongly hydrophilic, the strength of the hydrophobic bond between the hydrophobic part of the carrier and the hydrophobic part of the cell wall of the microorganism is weak, and the surface of the carrier is strong.
- Hydrophobic weakens the hydrogen bonding force between the carrier and the microorganisms, and found that a surface with an appropriate hydrophilic-hydrophobic balance is required for microorganisms to adhere to the surface of the carrier. It has been found that the specific gravity can be reduced to almost the same as water by using synthetic resin as a carrier, and that the specific gravity can be easily increased by adding a silica powder having a high specific gravity. And it has completed the device for producing the same and the particulate carrier for microbial cell immobilization of the present invention Zui.
- a liquid composition containing a water-soluble high-molecular-weight polysaccharide capable of gelling by contact is dropped into an aqueous medium containing metal ions or polyvalent metal ions, and the composition is formed into a gel. It has a specific gravity of 1.00 to 1.20 and a surface of n-paraffin and a contact angle of 2 ° to 30 °.
- a particulate carrier for immobilizing microbial cells having a surface suitable for the attachment of microorganisms, as well as,
- a liquid composition comprising a water-soluble high molecular weight polysaccharide capable of gelling by contact is dropped into an aqueous medium containing metal ions or polyvalent metal ions to gel the composition.
- the light irradiation device comprises: a light source; and a plurality of transparent tubes which are disposed substantially vertically close to the light source and in which the granular gel can be moved.
- a photocurable resin having at least two ethylenically unsaturated bonds in one molecule is used as one of the carriers for immobilizing microorganism cells.
- the photocurable resin can generally have a number average molecular weight in the range of 300 to 30,000, preferably 500 to 20,000, and has sufficient ionizing or nonionic properties to be uniformly dispersed in the aqueous medium.
- an actinic ray containing a hydrophilic group for example, a hydroxyl group, an amino group, a carboxyl group, a phosphoric acid group, a sulfonic acid group, an ether bond, etc., and having a wavelength within a range of about 250 to about 600 nm.
- a photocurable resin is combined with an immobilization carrier for inclusive immobilization.
- those already known for example, Japanese Patent Publication No. 55-40, Japanese Patent Publication No. 55-20676, Japanese Patent Publication No. 62-19883 Refer to the gazette). Representative examples include those described below.
- Polyethylene glycol di (meth) acrylates obtained by esterifying 1 mol of both terminal hydroxyl groups of 2 mol of (meth) acrylic acid with 1 mol of polyethylene glycol having a molecular weight of 400 to 600.
- diisocynate compound such as tolylene diisocyanate, xylylene diisocyanate, isophorone diisocyanate, etc.
- An unsaturated polyethylene glycol perethane compound added with 2 mol of an unsaturated monohydroxyethyl compound such as 2- (meth) acrylic acid 2-hydroxyshetyl.
- Unsaturated polyester salts having an acid value of 40 to 200 obtained by esterification of a polycarboxylic acid component containing an unsaturated polycarboxylic acid and a polyhydric alcohol;
- Unsaturated epoxy resins having an acid value of 40 to 200 obtained by adding an acid anhydride to hydroxy groups remaining in an addition reaction product of an epoxy resin and an unsaturated carboxyl compound such as (meth) acrylic acid.
- the lipoxyl group, phosphoric acid group and / or sulfonic acid group obtained by copolymerizing at least two kinds of (meth) acrylic monomers selected from (meth) acrylic acid and (meth) acrylic acid ester Resins in which photopolymerizable ethylenically unsaturated groups have been introduced into the contained copolymer.
- An adduct of a diisocyanate such as tolylene diisocyanate or xylylene diisocyanate with an unsaturated hydroxy compound such as 2-hydroxyhexyl acrylate is subjected to an addition reaction to a water-soluble polyimide such as gelatin.
- a water-soluble polyimide such as gelatin.
- saturated polyamides Such as saturated polyamides.
- the photocurable resins as exemplified above can be used alone or in combination of two or more.
- those which can be particularly advantageously used in the present invention are compounds having photopolymerizable ethylenically unsaturated groups at both terminals of the polyalkylene glycol of the above (1).
- ENT_1000, ENT—2000, EN from Kansai Paint Co., Ltd. T-4000, ENTG-2000, ENTG-3800, etc. can be listed.
- the liquid composition according to the present invention contains a photopolymerization initiator.
- Photopolymerization initiators that can be used are those that are decomposed by light irradiation to generate radicals, which act as polymerization initiation species to cause a crosslinking reaction between resins having a polymerizable unsaturated group.
- ⁇ -carbonyls such as benzoin; carboxylic ethers such as benzoin ethyl ether; polycyclic aromatic compounds such as naphthol; substituted anloins such as methylbenzoin; 2-cyano-2-butylylazo; It can include azoamide compounds such as formamide.
- the water-soluble polymer polysaccharide used in the present invention is a water-soluble polymer polysaccharide capable of changing to a gel that is insoluble or hardly soluble in water when contacted with a polyvalent metal ion in an aqueous medium.
- a water-soluble polymer polysaccharide capable of changing to a gel that is insoluble or hardly soluble in water when contacted with a polyvalent metal ion in an aqueous medium.
- those having a molecular weight of about 3000 to about 2000000 and exhibiting a solubility of usually at least about 10 £ (25 ° C) in a water-soluble state before contacting with a polyvalent metal ion are preferable. used.
- water-soluble polymer polysaccharide having such properties include alkali metal salts of alginic acid, carrageenan, and the like.
- alkali metal ions such as sodium or sodium ion
- alkali metal salts of alginic acid If magnesi At least one of alkaline earth metal ions such as palladium ion, calcium ion, strontium ion and barium ion; or other polyvalent metal ions such as aluminum ion, cerium ion and nickel ion;
- the concentration of alkali metal ions or polyvalent metal ions at which gelation occurs varies depending on the type of water-soluble high molecular weight polysaccharide, etc., but generally ranges from 0.0 l to 5 m o 1 Z.
- the components (a), (b) and (c) can be made into a liquid composition by thoroughly mixing each other in an aqueous medium.
- an aqueous medium that can be used, water or a buffered aqueous solution is suitable, but water-soluble alcohols, water-soluble ketones, and the like can also be used.
- the proportion of each of the components (a), (b) and (c) to be used is not strictly limited, but usually 100 parts by weight of the photocurable resin and the photopolymerization initiator. Is preferably 0.1 to 5 parts by weight, and the water-soluble high molecular weight polysaccharide is preferably 0.1 to 15 parts by weight.
- the liquid composition obtained by the above method is formed into a granular material by a granular carrier manufacturing apparatus described later.
- the thus obtained granular carrier for immobilizing microbial cells requires that the surface of the carrier has an appropriate hydrophilic-hydrophobic balance in order for the microorganisms to easily adhere to the carrier.
- the contact angle between the carrier surface and n-paraffin can be easily measured using a contact angle measuring device by dropping one drop of n-paraffin on the carrier surface.
- granular carrier Has a specific gravity in the range of 1.00 to 1.20, and can flow smoothly in the fermenter or bioreactor.
- the particulate carrier for immobilizing microorganisms has a surface that is suitable for the attachment of microorganisms and is difficult to peel off because the contact angle between the carrier surface and n-paraffin is in the range of 2 ° to 30 °. It shows.
- Immobilization of the microbial cells on the carrier can be easily performed, for example, only by charging the carrier into a fermenter or a bioreactor in which the microorganisms are suspended and attaching the carrier.
- the method can be carried out by injecting a carrier into a medium in advance, inoculating a microorganism and then culturing the microorganism.
- the carrier can be put into a culture tank, and after the microorganisms have been attached, the carrier can be put into a bioreactor.
- the amount of the carrier to be added to a culture tank, a fermenter, a bioreactor, or the like is not particularly limited, but is usually preferably in the range of 1% to 60% by volume of the medium.
- the microbial cells When the microbial cells are immobilized by an inclusive method, the microbial cells can be easily immobilized by including the microbial cells in the liquid composition comprising (a), (b) and (c) described above. A granular carrier can be obtained.
- the carrier is most suitable for use in a fluidized-bed type bioreactor or a stirred fermenter, but can also be applied to a fixed-bed type bioreactor, fermenter, or the like.
- the carrier for immobilizing microbial cells of the present invention has a surface structure suitable for the attachment of microorganisms, and can adhere a large amount of microorganisms.
- the microorganism that can be attached to the carrier is not particularly limited, and can be used for both anaerobic microorganisms and aerobic microorganisms.
- microorganisms include Aspergillus, Penicillium, Fusarium, etc., Saccharomyces, Yeasts such as the genus Fifa and Candida; the genus Zymomonas, the genus Nitrosomonas, the genus Nitrobacter, and the like.
- Examples include bacteria such as Lacoccus, Vibrio, Mesinosarcina, and Bacillus.
- the granular carrier manufacturing apparatus uses a plurality of substantially vertically arranged transparent tubes, the production efficiency is high, the particle distribution state in the tube is better than the spiral tube, and the irradiation efficiency is high. .
- the granular material manufacturing apparatus also has a simple flow path in a straight line, so that it is possible to use a highly durable glass such as quartz glass or Pyrex glass as a transparent tube material. Response is possible.
- FIG. 1 is a simplified front view of an example of a conventional granular material manufacturing apparatus.
- FIG. 2 is a simplified front view of the granular material manufacturing apparatus of the present invention.
- FIG. 3 is a plan view (A) and a partially cutaway front view (B) of one embodiment of a light irradiation device used in the granular material manufacturing apparatus of the present invention.
- FIG. 4 is a plan view of another embodiment of the light irradiation device used in the granular material manufacturing apparatus of the present invention.
- FIG. 5 is a plan view of another embodiment of the light irradiation device used in the granular material manufacturing apparatus of the present invention.
- FIG. 6 is a plan view (A) and a front view (B) of another embodiment of the light irradiation device used in the granular material manufacturing apparatus of the present invention.
- FIG. 7 is a front view of another embodiment of the light irradiation device used in the granular material manufacturing apparatus of the present invention.
- FIG. 8 is a front view of one embodiment of a solid-liquid separator used in the granular material manufacturing apparatus of the present invention.
- FIG. 9 is a front view of another embodiment of the solid-liquid separator used in the granular material manufacturing apparatus of the present invention.
- FIG. 10 is a front view of another embodiment of the solid-liquid separator used in the granular material manufacturing apparatus of the present invention.
- This granular carrier production apparatus includes a tank 118 containing a liquid composition, a gelling apparatus 123 provided with a dripping apparatus 120 and a gelling vessel 122, and irradiates the granular gel with ultraviolet light. Then, a light irradiation device 112 for curing this to form a granular material, a collecting tank 138 for collecting the formed granular material, and a granular material and an aqueous medium from the collecting tank 138.
- Circulation pump 148 to be sent out, Solid-liquid separator 150 to receive particulate matter and aqueous medium from circulation pump 148, and separate them, and to receive granular material from solid-liquid separator 150: Vessel 15 2.
- the liquid composition may contain an enzyme or a microbial cell if necessary.
- the tank 118 is provided with a stirring blade (not shown) so as to keep the liquid composition in a uniform state.
- the liquid composition is supplied from a tank 118 to a dripping device 120 via a transport tube 124 and a pump 126.
- the dropping device 120 holds a predetermined amount of the liquid composition, and the excess liquid composition is returned to the tank 118 via the discharge tube 128.
- the dripping device 120 is provided with a plurality of, for example, five thin nozzles 130 at a lower position, and the liquid composition is dripped from the tips of these nozzles 130. It is like that.
- the dropping device is not limited to this type of device, but is a device that uses a centrifugal force to scatter the liquid composition from the tip of the nozzle, and a device that atomizes the liquid composition from the tip of the spray nozzle and drops it in granular form. Can also be used.
- the gelation container 122 is disposed below the dropping device 120 as shown in the drawing, and is an aqueous solution containing the above-mentioned metal ions or polyvalent metal ions for gelling the liquid composition. Contains media. That is, droplets of the liquid composition containing enzymes or microbial cells formed by the dropping device 120 fall into the aqueous medium containing polyvalent metal ions contained in the gelling container 122.
- the bottom surface of the gelling container 122 has a number of recesses corresponding to the number of transparent tubes provided in the light irradiation device 112, and the formed gelling particles are suctioned by gravity and a circulation pump 148. Forces gather at the center of these recesses. Tubes 131 are connected below the respective central portions of the concave portions of the gelling container 122, and the gelled particles formed as described above are sent to the light irradiation device 112.
- the light irradiation device 112 includes a light source and a transparent tube arranged substantially vertically. Details of the light irradiation device 112 will be described later. While passing through multiple transparent tubes, the granular gel is irradiated with ultraviolet light from a light source located nearby, and the photocurable resin in the granular gel undergoes a photopolymerization reaction, producing high-strength granular materials. Is done.
- the particulate matter that has passed through the transparent tube is collected in a collection tank 138, passes through a circulation pump 148, and is sent to a solid-liquid separator 150 together with an aqueous medium.
- This circulating pump 1 48 has an internal pump that does not destroy particulate matter.
- a snake pump, a hose pump, etc. are desirable.
- the flow rate of the circulation pump 148 it is possible to control the time required for the granular gel to pass through the transparent tube.
- the particulate matter and the aqueous medium are separated by the solid-liquid separator 150, and the particulate matter is continuously collected in the collection vessel 152, which is out of the circulation path, and the aqueous medium is returned to the gelation vessel 122 Is done.
- the granular material can be automatically and continuously taken out of the system, so that the operation of discharging the particulate material is extremely easy. Further, most of the aqueous medium is separated from the particulate gel and returned to the gelling container, so it is sufficient to make up for the small amount that adheres to the surface of the particulate matter and is taken out of the system. is there.
- FIG. 3 shows a light irradiation device 112a according to the first embodiment.
- FIG. 3A is a plan view of the light irradiation device
- FIG. 3B is a front view of the reflector 166 cut away at the center.
- the light irradiating device 1 1 2a is located outside the transparent tube 16 4 and the transparent tube 16 4 which is arranged equidistantly around the light source 16 2 and the light source 16 2
- a cylindrical reflector 16 is provided.
- the light energy from the reflector 166 and the light source 162 can be used effectively.
- the upper ends of the transparent tubes 164 are connected to the tubes 131 shown in FIG. 2, respectively.
- the arrangement of the light source 162 and the transparent tube 1664 of the light irradiation device 112a can apply the energy from the light source 162 to the granular gel passing through the transparent tube very efficiently.
- the thickness of the transparent tube 1 6 4 is granular It is sufficient that the gel has a sufficient size to pass through.
- the relative size of the transparent tube 1664 with respect to the light source 162 and the reflector 1666 can be increased to reduce the gap and to effectively use light.
- FIG. 4 shows a plan view of a light irradiation device 112 b according to the second embodiment.
- This light irradiation device 1 1 2 b is located behind the light source 17 2, 5 transparent tubes 1 7 4 arranged in a line at equal intervals in front of the light source 17 2, and the light source 17 2 It has a semicircular cylindrical reflector 176 and a flat reflector 178 located behind the transparent tube 174.
- the reflector 1776 behind the light source 172 adjusts the light intensity distribution so that the light energy from the light source 172 to each of the transparent tubes 1774 is almost equal.
- the reflector 178 behind the transparent tube 174 is for reflecting the transmitted light to achieve effective activation of light energy.
- This light irradiating device 1 1 2 b adjusts the distance between the light source 17 2 and the transparent tube 17 4 when the light intensity of the light source 17 2 changes with time, etc. Can be maintained.
- FIG. 5 shows, in a plan view, a light irradiation device 112c according to a third embodiment.
- the light irradiating device 1 1 2c does not separate the transparent ducts arranged in a row, but arranges the transparent ducts with walls, instead of arranging the pipes independently.
- the transparent tube 1 84 is formed by the above.
- Other structures of the light irradiation device 112 are the same as those of the light irradiation device 112 b shown in FIG.
- transparent tubes 1 to 4 are lined up independently, a space is required between transparent tubes 1 to 4 because transparent tube 1 to 4 requires a space.
- the light irradiation device 1 1 2 c shown in FIG. 5 has no such waste.
- FIG. 6 shows a light irradiation device 112 d according to a fourth embodiment.
- a in Fig. 6 FIG. 2 is a plan view of the light irradiation device of FIG.
- the light irradiator 1 1 2 d shown in Fig. 6 passes through a gap between the transparent tubes 1 94 arranged in one row, and further adds another row of transparent tubes 1 95 to the position where UV light is directly irradiated from the light source 19 2.
- the transparent tube 195 in the row farther from the light source 192 is lighter than the transparent tube 194 in the row closer to the light source 192. Since the strength is slightly weak, a difference may occur in the photocuring reaction.
- a plurality of light sources 202.203 are arranged in the vertical direction, and the position of each light source is set with respect to the transparent tubes 204 and 205. By alternating, the light irradiation energy can be made uniform.
- the particulate matter passing through the right transparent tube 204 is closer to the light source upstream but farther from the light source downstream.
- FIG. 8 shows a solid-liquid separation device 150a according to the first embodiment.
- the solid-liquid separation device 150a includes an end belt 216 supported by two wheels 211, 214.
- the endless belt is formed of a net, supports the supplied particulate matter, and allows an aqueous medium, which is a liquid component, to pass through.
- the endless belt 2 16 is low on the gelation container 1 22 side and is high on the transfer container 15 2 side, and the upper surface of the endless belt 2 16 is gelled. It is driven to move in the direction from the chemical container 1 2 2 to the collection container 1 52.
- the particulate matter and the aqueous medium are supplied onto the endless belt 2 16 of the solid-liquid separation device 150a, the particulate matter is placed in the collection vessel 15 2 at the end of the device. After dropping, the aqueous medium passes through the endless belt 216, is returned to the gelling container 122, and is used repeatedly.
- FIG. 9 shows a solid-liquid separation device 150b according to the second embodiment.
- the solid-liquid separation device 150b is formed of a rectangular parallelepiped box 218 arranged obliquely, the upper surface thereof is open, and the lower surface 220 is formed of a net.
- An outlet opening 222 is provided on one side located below, and the other three sides are formed of flat plates.
- the particulate matter and the aqueous medium are supplied from the opening on the upper surface onto the lower surface 220 formed by the net.
- the aqueous medium falls from the opening 222 into the collection container 152, is collected, and is returned to the gelation container 122 through the net.
- FIG. 10 shows a solid-liquid separator 150c of the third embodiment.
- the solid-liquid separator 150 c is composed of a cylindrical net 222 provided in a part of the transport route of the mixture of the granular material and the aqueous medium, and a box 2 covering the net and having an opening at the bottom. It is formed from 26.
- the aqueous medium passes through the net and is returned to the gelling container from the opening at the bottom of the box 222, and the granular The objects are pushed upward and fall from the outlet opening 2 28 to the collection container 15 2 to be collected.
- Examples of the method for immobilizing microorganisms or enzymes on the granules produced by the present invention include a method in which the produced granules are mixed with a liquid containing microorganisms or enzymes and adhered to the surface of the granules, or a method in a liquid composition. After the microorganisms or enzymes are mixed with the mixture, a method of producing granules and entrapping them in the inside can be adopted.
- Example 1 Photocurable resin E NT-2000 (manufactured by Kansai Paint Co., Ltd.) After 150 g of water and 100 g of water were mixed well, 10 g of benzoylethyl ether as a polymerization initiator and 2% sodium alginate solution 50 were added. g was added and stirred well to prepare a liquid composition. Next, using the production apparatus of the present invention, a granular microbial cell-immobilizing carrier having a contact angle of 24 ° with the specific gravity 1.01 and n-paraffin was prepared.
- a 3% calcium chloride solution was used as an aqueous medium containing metal ions.
- GY-10 medium consisting of 1 g of Yeast extract / 100 g of H glucose
- the granular carrier 1 for immobilizing the microbial cells obtained above was added thereto.
- Zymomonas mobilis IFO 13756 was added at a concentration of 2%, and static activation culture was performed at 30 for 24 hours.
- Example 1 After the activation, the surface of each carrier was washed with distilled water, and the activated fermentation broth was replaced with a new medium, followed by stationary culture for 24 hours, and the subsequent ethanol concentrations were compared as shown below. As a result, the granular support produced in Example 1 showed the highest ethanol concentration.
- Example 2 Photo-curable resin E NTG-3800 (manufactured by Kansai Paint Co., Ltd.) After 150 g of water and 60 g of water were mixed well, 6 g of polymerization initiator Glocur 1173 (manufactured by Ciba Geigy) and 2% sodium alginate solution 50 g was added and stirred well to prepare a liquid composition. Next, a carrier for immobilizing microorganisms having a specific gravity of 1.01 and a contact angle of 10 ° with n-paraffin was obtained using the production apparatus of the present invention.
- a 3% calcium chloride solution was used as an aqueous medium containing metal ions.
- a microbial cell-incorporated immobilized granule having a specific gravity of 1.01 was prepared in the same manner as in Example 1, except that 15 parts by weight of Zymomonas mobilis I FO 13756 was added to the liquid composition prepared in Example 1 as a liquid composition. A carrier was obtained.
- the carrier for immobilizing microorganisms provided by the present invention has a specific gravity as small as 1.0 to 1.20 and a contact angle between the carrier surface and n-paraffin. In the range from 2 ° to 30 °, the microorganisms easily adhere and are hard to peel off. Thus, a stable microbial reaction can be performed. Further, since the carrier of the present invention has a low specific gravity, it can be easily applied to a fluidized bed reactor.
- the granular gel moving continuously in the liquid can be efficiently irradiated with ultraviolet rays, so that it can be widely used as an industrial method for mass production of particulate matter. Can be.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69637592T DE69637592D1 (de) | 1995-11-28 | 1996-11-22 | System zur Herstellung eines granularen Trägers |
EP96938532A EP0864600B1 (en) | 1995-11-28 | 1996-11-22 | Granular carrier manufacturing system |
JP52035397A JP3242927B2 (ja) | 1995-11-28 | 1996-11-22 | 微生物菌体固定化用粒状担体及び粒状担体の製造装置 |
US09/077,330 US5990191A (en) | 1995-11-28 | 1996-11-22 | Granular carrier for immobilizing microbial cells and apparatus for producing the granular carrier |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP7/331223 | 1995-11-28 | ||
JP33122395 | 1995-11-28 | ||
JP8/216920 | 1996-07-31 | ||
JP21692096 | 1996-07-31 |
Publications (1)
Publication Number | Publication Date |
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WO1997019978A1 true WO1997019978A1 (fr) | 1997-06-05 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP1996/003439 WO1997019978A1 (fr) | 1995-11-28 | 1996-11-22 | Support granulaire pour l'immobilisation de cellules microbiennes et appareil de production de ce support granulaire |
Country Status (6)
Country | Link |
---|---|
US (1) | US5990191A (ja) |
EP (1) | EP0864600B1 (ja) |
JP (1) | JP3242927B2 (ja) |
CN (1) | CN1070882C (ja) |
DE (1) | DE69637592D1 (ja) |
WO (1) | WO1997019978A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008523192A (ja) * | 2004-12-10 | 2008-07-03 | コミツサリア タ レネルジー アトミーク | ポリマーフォームビーズまたはバルーンを製造するための方法および装置 |
CN101389961B (zh) * | 2005-12-26 | 2013-07-10 | 微化学技术有限公司 | 免疫分析微芯片、免疫分析用试剂盒及免疫分析方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2315837A1 (en) * | 1999-08-02 | 2001-02-02 | F. Hoffmann-La Roche Ag | Microbial production of levodione |
EP1074630B1 (en) * | 1999-08-02 | 2012-01-18 | DSM IP Assets B.V. | Microbial production of levodione |
US7252981B1 (en) * | 2000-08-31 | 2007-08-07 | Council Of Scientific And Industrial Research | Method for the preparation of stable and reusable biosensing granules |
JP4430254B2 (ja) * | 2001-01-31 | 2010-03-10 | 関西ペイント株式会社 | 微生物菌体固定化用粒状成形物の製造方法 |
JP4334316B2 (ja) * | 2003-10-16 | 2009-09-30 | 原子燃料工業株式会社 | 重ウラン酸アンモニウム粒子製造装置 |
CN101519632B (zh) * | 2009-04-01 | 2013-07-17 | 天津大学 | 工程化包埋固定微生物球体的装置及工艺 |
KR101507031B1 (ko) * | 2012-05-17 | 2015-03-31 | 씨제이제일제당 (주) | 효소 고정화 비드의 제조 장치 및 이를 이용한 효소 고정화 비드의 제조 방법 |
KR101752466B1 (ko) * | 2016-11-30 | 2017-07-03 | 주식회사 두산에코비즈넷 | 이송스크류를 이용한 미생물 고정화담체 제조장치 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60106836A (ja) * | 1983-11-14 | 1985-06-12 | Kansai Paint Co Ltd | 粒状ゲルに活性光線を照射する装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4195129A (en) * | 1975-11-26 | 1980-03-25 | Kansai Paint Co., Ltd. | Method for immobilizing enzymes and microbial cells |
JPS5540A (en) * | 1978-06-12 | 1980-01-05 | Iseki Agricult Mach | Straw conveying chain |
JPS5520676A (en) * | 1978-08-03 | 1980-02-14 | Iony Kk | Polishing device of polished rice |
JPS5917988A (ja) * | 1982-07-23 | 1984-01-30 | Res Assoc Petroleum Alternat Dev<Rapad> | アルコ−ル発酵力を有する酵母の粒状固定化成形物の製造方法 |
US4605622A (en) * | 1983-11-15 | 1986-08-12 | Kansai Paint Co., Ltd. | Process for producing granular fixed enzymes or microorganisms |
JPS6219837A (ja) * | 1985-07-19 | 1987-01-28 | Mitsubishi Rayon Co Ltd | 透過型スクリ−ン |
JPH075746B2 (ja) * | 1987-10-30 | 1995-01-25 | ヘキスト合成株式会社 | 粒状架橋ゲルの製造方法 |
-
1996
- 1996-11-22 WO PCT/JP1996/003439 patent/WO1997019978A1/ja active IP Right Grant
- 1996-11-22 JP JP52035397A patent/JP3242927B2/ja not_active Expired - Lifetime
- 1996-11-22 DE DE69637592T patent/DE69637592D1/de not_active Expired - Fee Related
- 1996-11-22 EP EP96938532A patent/EP0864600B1/en not_active Expired - Lifetime
- 1996-11-22 CN CN96198593A patent/CN1070882C/zh not_active Expired - Fee Related
- 1996-11-22 US US09/077,330 patent/US5990191A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60106836A (ja) * | 1983-11-14 | 1985-06-12 | Kansai Paint Co Ltd | 粒状ゲルに活性光線を照射する装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0864600A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008523192A (ja) * | 2004-12-10 | 2008-07-03 | コミツサリア タ レネルジー アトミーク | ポリマーフォームビーズまたはバルーンを製造するための方法および装置 |
CN101389961B (zh) * | 2005-12-26 | 2013-07-10 | 微化学技术有限公司 | 免疫分析微芯片、免疫分析用试剂盒及免疫分析方法 |
US8802449B2 (en) | 2005-12-26 | 2014-08-12 | Institute Of Microchemical Technology | Microchips, kits, and methods for immunoassays |
Also Published As
Publication number | Publication date |
---|---|
US5990191A (en) | 1999-11-23 |
CN1070882C (zh) | 2001-09-12 |
EP0864600B1 (en) | 2008-07-09 |
JP3242927B2 (ja) | 2001-12-25 |
DE69637592D1 (de) | 2008-08-21 |
CN1202916A (zh) | 1998-12-23 |
EP0864600A1 (en) | 1998-09-16 |
EP0864600A4 (en) | 2002-07-24 |
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