WO2014208485A1 - 連続滅菌装置の運転方法、連続滅菌装置、発酵システムおよび連続発酵システム - Google Patents
連続滅菌装置の運転方法、連続滅菌装置、発酵システムおよび連続発酵システム Download PDFInfo
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- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
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- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
- A23L3/18—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus
- A23L3/22—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials while they are progressively transported through the apparatus with transport through tubes
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- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
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- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M33/00—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
- C12M33/14—Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus with filters, sieves or membranes
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- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M45/00—Means for pre-treatment of biological substances
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- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Definitions
- the present invention relates to a method for operating a continuous sterilization apparatus, a continuous sterilization apparatus, a fermentation system, and a continuous fermentation system for sterilizing a liquid medium, food, medicine or the like in a microbially safe state.
- a sterilized medium is continuously supplied to continuously culture microorganisms and cultured cells.
- a continuous sterilization apparatus capable of continuously sterilizing the medium is used in the continuous fermentation method.
- the continuous sterilization apparatus can sterilize the medium by a short heat treatment.
- the fermenter of the fermenter used for the continuous fermentation process has a scale of several hundred tons.
- sterilization is performed with the medium contained in a fermenter of this scale, it takes a long time to heat the medium in the center of the fermenter to a temperature suitable for sterilization. May occur.
- the batch sterilization which sterilizes for every fermenter is not performed substantially as a sterilization process of a culture medium.
- a continuous sterilization apparatus that can sterilize at a high temperature for a short time and can minimize the deterioration of the medium due to heating is suitably used in the sterilization process of the medium.
- the continuous sterilization device has a heating unit for heating the liquid to be sterilized, a holding unit for holding the temperature of the heated liquid to be sterilized for a set time, and cooling that can cool the sterilized liquid to be near room temperature.
- a heating unit for heating the liquid to be sterilized
- a holding unit for holding the temperature of the heated liquid to be sterilized for a set time
- cooling that can cool the sterilized liquid to be near room temperature.
- the continuous sterilization apparatus includes a multi-tube type, a plate type, and a steam injector type as a heating mode of the liquid to be sterilized.
- the steam injector type is a system in which steam is directly introduced into a liquid to be sterilized, the liquid to be sterilized can be instantaneously heated to a high temperature, and sterilization in a continuous sterilization apparatus can be performed simultaneously (for example, patents). Reference 2).
- steam used in an industrial process is mixed with a boiler canning agent (rust prevention), and if a boiler canning agent is mixed in the medium, there is a risk of adversely affecting fermentation performance. For this reason, in a fermentation process such as a continuous fermentation method, a multiple tube type or a plate type is used.
- the multi-tube type and the plate type can be continuously sterilized without using a boiler canning agent, but like the steam injector type, heat treatment is performed so that the liquid to be sterilized is instantaneously heated to a high temperature. It is not possible.
- FIG. 10 is a schematic diagram showing an example of a schematic configuration of a conventional multi-tube continuous sterilization apparatus.
- a continuous sterilization apparatus 100 shown in FIG. 10 includes a culture medium, a food, a pharmaceutical (hereinafter referred to as a sterilization target liquid) to be pumped, a pumping pump 101 that pumps a sterilizing liquid, and a sterilization target liquid or sterilization sent by the pumping pump 101.
- the heating unit 102 that heats the liquid, the holding unit 103 that holds the liquid to be sterilized or the sterilization liquid heated by the heating unit 102 at a predetermined temperature and for a predetermined time, and the sterilization that is held by the holding unit 103 and has completed the heat sterilization
- a cooling unit 104 that cools the target liquid or sterilizing liquid and a cooling unit 105 that is provided downstream of the cooling unit 104 and cools the sterilizing liquid are connected to each other by a pipe to form a flow path. Yes.
- the operation of the continuous sterilization apparatus 100 is controlled by a control unit (not shown).
- a pressure feed pump 101, a heating unit 102, a holding unit 103, and a cooling unit 104 are sequentially connected by a pipe 106 to form a first flow path that is one flow path.
- a second flow path is formed by connecting the upstream end and the downstream end of the pipe 106 and the both ends of the pipe 107, respectively.
- a cooling unit 105 is provided in the second flow path.
- the pipe 106 includes a valve 111 provided at the front stage of the pressure feed pump 101 and valves 112 and 113 provided at the rear stage of the cooling unit 104.
- the valve 112 is provided upstream (upstream) from the connection portion between the pipe 106 and the pipe 107
- the valve 113 is provided downstream (downstream) from the connection portion between the pipe 106 and the pipe 107.
- the pipe 107 has valves 114 and 115 provided in the vicinity of a connection portion with the pipe 106.
- the valve 114 is provided in a connection portion of the pipe 107 with the downstream side of the first flow path (pipe 106).
- the valve 115 is provided in a connection portion between the pipe 107 and the upstream side of the first flow path.
- the heating unit 102 heats the pipe 106 by circulating steam through the pipe 102 a provided along the pipe 106.
- the cooling units 104 and 105 cool the pipes 106 and 107 by circulating cooling water through the pipes 104a and 105a provided along the pipes 106 and 107, respectively.
- the sterilization liquid is circulated inside the pipes 106 and 107 before the actual liquid to be sterilized is circulated to perform the sterilization process in the pipes.
- the valves 112, 114, 115 are opened, the valves 111, 113 are closed, and the inside of the pipes 106, 107 is sterilized by circulating the sterilizing liquid in the pipes 106, 107 by the pressure pump 101.
- the sterilizing liquid is heated to about 135 ° C. by the heating unit 102 and circulates in the pipe, and is cooled to about 50 ° C. by the cooling unit 105.
- the flow rate and the pressure inside the pipe are controlled by adjusting the operation of the pressure pump 101 and the open state of the valve 112 by the control unit.
- the cooling unit 104 is in a state where the cooling operation is stopped.
- the sterilizing liquid flows through the pipe 106 while being heated to about 135 ° C. to sterilize the pipe, and is cooled by the cooling unit 105 and flows again into the heating unit 102.
- the cooling unit 104 After the sterilization treatment with the sterilizing liquid, the cooling unit 104 is operated, and the cooling temperature inside the pipe 106 in the cooling unit 104 is stabilized. Thereafter, the valve 113 is opened and the valves 114 and 115 are closed, and the valve 111 is opened to switch from the sterilizing liquid to the liquid to be sterilized, and the sterilizing liquid is continuously sterilized.
- JP 2000-262594 A Japanese Patent Laid-Open No. 1-148180
- the cooling unit 105 is provided in the second flow path used in the pretreatment in addition to the first flow path that is the original sterilization path. There was a problem that was large.
- the present invention has been made in view of the above, and a method for operating a continuous sterilization apparatus capable of reliably performing sterilization in a flow path and realizing downsizing of the apparatus, a continuous sterilization apparatus, It aims at providing a fermentation system and a continuous fermentation system.
- the present inventors can reliably perform sterilization treatment in the pipe by any of the following configurations, It was possible to reduce the size of the apparatus, and the present invention was completed.
- the operation method of the continuous sterilization apparatus is a continuous process of heat treatment, holding treatment and cooling treatment on the flow path through which the liquid to be sterilized flows.
- a method of operating a continuous sterilization apparatus for sterilizing the liquid to be sterilized by passing a sterilization medium for sterilizing a member constituting the flow path through the flow path to sterilize the member Then, the sterilized liquid subjected to the sterilization process is distributed to the member, and the series of processes are performed on the sterilized liquid, and the flow rate, temperature, and pressure of the sterilized liquid subjected to the series of processes are measured.
- Flow rate, temperature A determination step for determining whether or not the condition has been achieved, and a liquid to be circulated through the member from the sterilizing liquid when the determination step determines that the condition has been achieved in the determination step.
- a switching step for switching to the liquid to be sterilized.
- the operation method of the continuous sterilization apparatus according to the present invention is characterized in that, in the above invention, the sterilization medium is steam.
- the operation method of the continuous sterilization apparatus according to the present invention is characterized in that, in the above invention, the series of processes includes a heat exchange process between the liquids before and after the heat treatment and the holding process.
- the operation method of the continuous sterilization apparatus according to the present invention is characterized in that, in the above invention, the liquid to be sterilized is a medium as a fermentation raw material.
- the operation method of the continuous sterilization apparatus according to the present invention is characterized in that, in the above-mentioned invention, the sterilization liquid and the liquid to be sterilized are supplied to a fermentation apparatus that continuously performs a fermentation process.
- the continuous sterilization apparatus is a continuous sterilization apparatus for sterilizing a liquid to be sterilized, a heating unit for heating the liquid to be sterilized, and the liquid to be sterilized heated by the heating unit at a predetermined temperature.
- a holding unit that holds the liquid for sterilization that has been held for a predetermined period of time, and a cooling unit that cools the liquid to be sterilized that is held by the holding unit and has been sterilized by heating;
- a sterilizing medium for sterilizing the member can be introduced from one end, a second circulation means connected to the first circulation means at the other end, and a sterilized liquid subjected to sterilization treatment from the one end can be introduced.
- the other end is connected to the first circulation means, the third circulation means, the measurement means for measuring the flow rate, temperature and pressure of the liquid flowing through the first circulation means, and the sterilization target liquid Sterilization treatment
- a storage unit that stores the amount, temperature, and pressure as condition information; and a control unit that controls the operation of the entire continuous sterilization apparatus, wherein the control unit controls the second and third distribution means.
- the sterilizing medium is circulated through the first distribution means to sterilize the first distribution means, and then the sterilizing liquid is circulated through the first distribution means, and the heating unit
- the flow rate and temperature measured by the measurement means are measured by the measurement means, and the flow rate, temperature, and pressure of the sterilizing liquid subjected to the series of treatments are measured.
- the sterilization medium is steam, connected to the first circulation means, and fourth circulation means for discharging a drain generated by the steam. It is provided with.
- the continuous sterilization apparatus further includes a heat exchanging unit that performs heat exchange between liquids flowing through the upstream side of the heating unit and the downstream side of the holding unit in the above-described invention. It is characterized by.
- the continuous sterilization apparatus is characterized in that, in the above invention, any one or more of the heating unit, the cooling unit, and the heat exchange unit is a plate heat exchanger.
- the fermentation system includes a raw material holding unit for holding raw materials such as a culture medium, food, and pharmaceuticals, and a continuous sterilization apparatus according to the invention, wherein the raw material supplied from the raw material holding unit is A continuous sterilization apparatus that sterilizes continuously as a liquid to be sterilized, and a fermenter that performs a fermentation process using the raw material sterilized by the continuous sterilization apparatus.
- the flow rate is determined in accordance with a measurement result by the measurement unit, a change in weight of the raw material holding unit, and / or a change in weight of the fermenter. It is characterized by.
- the fermentation system according to the present invention is characterized in that, in the above invention, the sterilizing liquid is introduced into the flow path via a pipe branched from a pipe for introducing the sterilizing liquid into the fermenter.
- a continuous fermentation system according to the present invention is characterized by comprising the fermentation system according to the above-described invention and a filtering means for filtering the fermentation broth produced in the fermenter.
- the continuous fermentation system according to the present invention is characterized in that, in the above invention, a plurality of the raw material holding units are provided.
- the sterilization process in the flow path can be reliably performed, and the apparatus can be downsized.
- FIG. 1 is a schematic diagram illustrating a schematic configuration of a fermentation system according to a first embodiment of the present invention.
- FIG. 2 is a flowchart showing pre-processing in the fermentation system according to the first embodiment of the present invention.
- FIG. 3 is a diagram for explaining pre-processing in the fermentation system according to the first embodiment of the present invention.
- FIG. 4 is a diagram for explaining pre-processing in the fermentation system according to the first embodiment of the present invention.
- FIG. 5 is a diagram for explaining pre-processing in the fermentation system according to the first embodiment of the present invention.
- FIG. 6 is a schematic diagram illustrating a schematic configuration of the fermentation system according to the second embodiment of the present invention.
- FIG. 7 is a schematic diagram which shows schematic structure of the continuous sterilization apparatus in the fermentation system concerning Embodiment 2 of this invention.
- FIG. 8 is a schematic diagram illustrating a schematic configuration of a continuous fermentation system according to the third embodiment of the present invention.
- FIG. 9 is a schematic diagram illustrating a schematic configuration of a continuous fermentation system according to a modification of the third embodiment of the present invention.
- FIG. 10 is a schematic diagram showing an example of a schematic configuration of a conventional multi-tube continuous sterilization apparatus.
- FIG. 1 is a schematic diagram illustrating a schematic configuration of a fermentation system according to a first embodiment of the present invention.
- the fermentation system 1 contains microorganisms and cultured cells for culturing, and supplies a continuously sterilized medium in a fermenter that produces a fermentation broth by fermentation.
- a fermentation system 1 shown in FIG. 1 includes a raw material holding unit 10 that holds raw materials such as culture media, foods, and pharmaceuticals, a continuous sterilization device 20 that continuously sterilizes raw materials supplied from the raw material holding unit 10, and a continuous sterilization device.
- a fermentation apparatus 30 that performs fermentation using the raw material sterilized by 20, a control unit 40 that controls the operation of the entire fermentation system 1, and the fermentation system 1.
- a storage unit 50 for storing various programs for operating and information including various parameters necessary for the operation of the fermentation system 1.
- the continuous sterilization apparatus 20 includes a medium, food, medicine (hereinafter referred to as a liquid to be sterilized) to be pumped, a pumping pump 21 for pumping a sterilized liquid, and a liquid to be sterilized sent by the pumping pump 21.
- a medium, food, medicine hereinafter referred to as a liquid to be sterilized
- a pumping pump 21 for pumping a sterilized liquid
- a liquid to be sterilized sent by the pumping pump 21 Alternatively, the heating unit 22 that heats the sterilizing liquid, the holding unit 23 that holds the liquid to be sterilized or the sterilizing liquid heated by the heating unit 22 at a predetermined temperature and for a predetermined time, and the holding unit 23 holds the heat sterilization.
- the cooling unit 24 that cools the sterilized liquid or sterilization liquid, the sterilization filter 25 that performs sterilization, and the steam trap 26 that discharges only the drain in the steam atmosphere.
- the operation of the continuous sterilization apparatus 20 is controlled by the control unit 40.
- the sterilizing liquid for example, sterilized water adjusted to have a viscosity similar to that of the actual liquid to be sterilized is used.
- an aqueous solution that has been sterilized may be used as the sterilization solution as long as the viscosity is adjusted to be similar to the actual liquid to be sterilized.
- the sterilizing solution subjected to the sterilization treatment may be, for example, condensed water of pure steam (steam not containing a canning agent) or water sterilized by a sterilizing filter.
- the sterilizing solution is preferably water sterilized with a sterilizing filter.
- the continuous sterilization apparatus 20 is connected to a pumping pump 21, a heating unit 22, a holding unit 23, and a cooling unit 24 in order by piping, and the first channel 27 (first flow means) which is one channel by these members. ) Is formed. Further, the continuous sterilizer 20 is formed with a second flow path 28 whose both ends are connected to the upstream side and the downstream side of the first flow path 27, respectively. In the first flow path 27, the side connected to the raw material holding unit 10 is the upstream side, and the side connected to the fermentation apparatus 30 is the downstream side.
- the first flow path 27 is connected to the raw material holding unit 10 at one end and is connected to the pressure feed pump 21 at the other end, and the second pipe 272 is connected between the pressure feed pump 21 and the heating unit 22.
- a third pipe 273 that connects between the heating unit 22 and the holding unit 23, a fourth pipe 274 that connects between the holding unit 23 and the cooling unit 24, and one end connected to the cooling unit 24, And a fifth pipe 275 having the other end connected to the fermentation apparatus 30.
- the first pipe 271 has a first valve 201 that regulates the flow of gas or liquid in the pipe by opening and closing.
- the fifth pipe 275 has a second valve 202 that regulates the flow of gas or liquid in the pipe by opening and closing.
- the first valve 201 is automatically opened and closed under the control of the control unit 40. Further, the opening adjustment of the second valve 202 is automatically performed under the control of the control unit 40.
- the continuous sterilization apparatus 20 is provided in the third pipe 273 and is provided in the fifth pipe 275 and the thermometer 211 that measures the temperature of the liquid flowing through the third pipe 273.
- a flow meter 212 that measures the flow rate of the liquid flowing through the pressure pipe 275, and a pressure gauge 213 that is provided in the fifth pipe 275 and measures the pressure in the fifth pipe 275.
- the second channel 28 can introduce steam or liquid from one end, and can introduce steam from one end to the first pipe 281 connected to the upstream side of the second valve 202 of the fifth pipe 275 at the other end.
- the other end of the first pipe 271 is connected between the first valve 201 and the pressure pump 21, and one end is connected to the first pipe 281 and the other end is connected to the second pipe 282.
- a fourth pipe 284 having one end connected between the first valve 201 and the pumping pump 21 of the first pipe 271.
- each piping mentioned above is connected by the connection tool which is not illustrated, respectively. It is preferable to introduce the first pipe 281 from the highest position of the continuous sterilizer 20 to the last.
- the second pipe 282 is provided with a sterilization filter 25 on the upstream side (liquid introduction side) from the connection portion with the third pipe 283. Thereby, the liquid introduced from one end of the second pipe 282 is sterilized by the sterilization filter 25.
- a steam trap 26 is provided in the fourth pipe 284.
- the fourth pipe 284 is preferably provided at the bottom of the continuous sterilization apparatus 20 for drain (condensate) discharge by steam.
- the fourth pipe 284 and the steam trap 26 are provided on each bottom portion.
- the first pipe 281 has a third valve 203 that is provided in the vicinity of the connection portion with the fifth pipe 275 and regulates the flow of gas or liquid in the pipe by opening and closing.
- the third pipe 283 has a fourth valve 204 that regulates the flow of gas or liquid in the pipe by opening and closing.
- the second pipe 282 is provided between a connection part with the first pipe 271 and a connection part with the third pipe 283, and has a fifth valve 205 that regulates the flow of gas or liquid in the pipe by opening and closing.
- the fourth pipe 284 has a sixth valve 206 that is provided between the connection portion with the first pipe 271 and the steam trap 26 and regulates the flow of gas or liquid in the pipe by opening and closing.
- the third valve 203 to the sixth valve 206 are automatically opened and closed under the control of the control unit 40.
- the heating unit 22 is connected to the second pipe 272 at one end and the pipe 22a connected to the third pipe 273 at the other end, and a pipe 221 provided near the pipe 22a or in contact with outer surfaces. Have. In the heating unit 22, the pipe 22 a is heated by circulating steam inside the pipe 221.
- the holding unit 23 has a pipe 23a connected to the third pipe 273 at one end and to the fourth pipe 274 at the other end, and holds the pipe 23a at a predetermined temperature.
- the length of the pipe 23a is preferably determined according to the holding time and the flow rate.
- the cooling unit 24 includes a pipe 24a that is connected to the fourth pipe 274 at one end and is connected to the fifth pipe 275 at the other end, and a pipe 241 that is provided close to the pipe 24a or in contact with the outer surfaces. .
- the cooling unit 24 cools the pipe 24 a by circulating cooling water through the pipe 241.
- the plate-type heat exchanger which performs heat exchange via a heat exchange wall is suitably used for the heating unit 22 and the cooling unit 24.
- the heating unit 22 may be provided by providing a heat exchange wall between the pipe 22a and the pipe 221 to promote heat exchange, or one pipe is divided by the heat exchange wall.
- a liquid to be sterilized or the like may be circulated in one area, and a heat medium such as steam or hot water may be circulated in the other area.
- the sterilization filter 25 has a function of removing microorganisms in the liquid.
- the steam trap 26 has a function of automatically discharging the accumulated drain based on information such as the water level accumulated therein and the internal temperature.
- the fermenter 30 is connected to the continuous sterilizer 20 and contains a fermenter 31 for containing and fermenting a medium, food, pharmaceuticals, microorganisms, cultured cells and the like sterilized by the continuous sterilizer 20, and only a drain in a steam atmosphere. And a steam trap 32 for discharging.
- the fermentation apparatus 30 has the 1st piping 301 connected with the fermenter 31 at one end.
- the first pipe 301 is provided with the steam trap 32 described above.
- the first pipe 301 includes a valve 311 that is provided between a connection portion with the fermenter 31 and the steam trap 32 and that opens and closes under the control unit 40 to restrict the flow of liquid in the pipe.
- the fermenter 31 has a stirring unit 31a.
- the stirring unit 31a has a stirring blade at the tip of a rod-shaped member.
- the liquid accommodated is stirred by the stirring blades of the stirring unit 31a rotating.
- the sensor which measures the temperature and pH controlled in normal fermentation can be attached to the fermenter 31.
- the fermenter 31 has a function which should be naturally provided as a fermenter, such as being able to ventilate gas.
- the storage unit 50 stores sterilization condition information 51 related to the sterilization process of the liquid to be sterilized.
- the sterilization condition information 51 includes information such as the heating temperature in the heating unit 22, the holding time in the holding unit 23, the cooling temperature in the cooling unit 24, the flow rate in the first flow path 27, and the pressure in the pipe in the first flow path 27. Is included.
- the storage unit 50 is realized by using a semiconductor memory such as a flash memory or a DRAM (Dynamic Random Access Memory).
- the raw material supplied from the raw material holding unit 10 is sent to the heating unit 22 by the pressure pump 21 via the first pipe 271. Thereafter, the raw material heated (for example, heated to 135 ° C.) by the heating unit 22 is fed into the holding unit 23 and held at a predetermined temperature (for example, 135 ° C.) for a predetermined time (for example, 1 minute). Thereby, a heat sterilization process is performed with respect to a raw material.
- the raw material that has been subjected to heat sterilization is sent to the cooling unit 24 and cooled (for example, cooled to about 32 ° C.).
- the raw material cooled by the cooling unit 24 is sent to the fermenter 31 via the fifth pipe 275.
- a fermentation process is performed based on the raw material sent from the continuous sterilizer 20, microorganisms, and cultured cells.
- the raw material sterilized in the continuous sterilization apparatus 20 is continuously supplied to the fermenter 31 to perform the fermentation process, and the fermentation broth can be collected.
- the control unit 40 controls only the first valve 201 and the second valve 202 to be in an open state and the third valve 203 to the sixth valve 206 and the valve 311 to be in a closed state.
- the sterilization process operation method of the continuous sterilization apparatus 20 by the continuous sterilization apparatus 20 of the fermentation system 1 will be described.
- the continuous sterilization apparatus 20 is sterilized before the actual liquid to be sterilized is sterilized as a pretreatment of the liquid to be sterilized such as a culture medium, food, and medicine.
- the sterilization temperature, pressure, flow rate, and the like of the continuous sterilization apparatus 20 are stabilized by flowing sterilized water through the first flow path 27.
- FIG. 2 is a flowchart showing pre-processing in the fermentation system according to the first embodiment.
- 3 to 5 are diagrams for explaining pre-processing in the fermentation system according to the first embodiment.
- steam is used as the sterilization medium.
- an acidic or alkaline aqueous solution may be used as the sterilization medium.
- the steam may contain a canning agent.
- step S101 the inside of the pipe (member) is sterilized with steam.
- steam sterilization medium
- step S101 steam (sterilization medium) is introduced from the first pipe 281 to sterilize the pipe in the continuous sterilization apparatus 20.
- the first valve 201 and the second valve 202 are closed by the control unit 40, and the third valve 203, the fourth valve 204, the fifth valve 205, and the sixth valve 206 are opened. It is controlled. That is, the first channel 27 and the second channel 28 form a substantially annular channel.
- the steam introduced into the first pipe 281 is filled into the first flow path 27 from the fifth pipe 275, branched from the first pipe 281 to the third pipe 283, and sent to the second pipe 282.
- the second flow path 28 is filled.
- the first pipe 281, the second pipe 282, the third pipe 283, the third valve 203, the fourth valve 204, and the fifth valve 205 through which the introduced steam flows form the second flow means.
- the drain generated by the circulation of the steam is discharged from the fourth pipe 284 to the outside through the steam trap 26 (see FIG. 3).
- the steam trap 26, the fourth pipe 284, and the sixth valve 206 form a fourth flow means.
- the second valve 202 and the valve 311 are opened, and the drain generated by the steam flowing into the fermenter 31 is discharged via the steam trap 32. Also good.
- the fermenter may be sterilized by introducing steam from a dedicated steam supply line (not shown).
- Step S102 After the apparatus is sufficiently sterilized, the introduction of steam is stopped and the sterilization air is introduced from the first pipe 281 to maintain the pressure in the pipes of the first flow path 27 and the second flow path 28 at a positive pressure.
- the introduction of sterilizing air prevents negative pressure inside the pipe when the inside of the pipe is cooled by stopping the introduction of steam. This is technically common when performing device sterilization.
- the second valve 202 is changed from the closed state to the open state under the control of the control unit 40, and the third valve 203, the fourth valve 204, and the sixth valve 206 are changed from the open state to the closed state.
- the sterilizing liquid used here is sterilized water adjusted so that the viscosity and the like are similar to those of the actual liquid to be sterilized.
- the sterilization liquid is sterilized by passing through the sterilization filter 25.
- the second pipe 282 and the fifth valve 205 through which the introduced sterilizing liquid flows form the third flow means.
- the sterilizing liquid flows into the first pipe 271 and flows through the first flow path 27 toward the downstream side, and then flows into the fermenter 31.
- the heating unit 22, the holding unit 23, and the cooling unit 24 operate under the control of the control unit 40.
- the sterilizing liquid flows through the first flow path 27 so as to be heated to a predetermined temperature by the heating unit 22, held at the holding unit 23 at a predetermined temperature for a predetermined time, and then cooled by the cooling unit 24.
- the Specifically, for example, the sterilizing solution is heated to about 135 ° C. by the heating unit 22, held at 135 ° C. for 1 minute by the holding unit 23, and cooled to 32 ° C. by the cooling unit 24. Further, the sterilizing solution sent to the fifth pipe 275 then flows into the fermenter 31.
- the control unit 40 circulates the first flow path 27 as measurement information from the thermometer 211, the flow meter 212, and the pressure gauge 213. Acquire the temperature, flow rate and pressure in the pipe according to the liquid. Based on the acquired measurement information, the control unit 40 refers to the sterilization condition information 51 stored in the storage unit 50, and the temperature, flow rate, and pressure in the piping of the sterilizing liquid flowing through the piping are set. It is determined whether or not certain sterilization conditions are achieved (step S104).
- control unit 40 determines whether or not the temperature of the liquid passing through the third pipe 273 is a predetermined temperature based on the temperature information from the thermometer 211.
- the control unit 40 controls the temperature and flow rate of the steam flowing through the pipe 221 according to the determination result.
- control unit 40 determines whether or not the flow rate of the liquid flowing through the fifth pipe 275 is a predetermined flow rate based on the information relating to the flow rate from the flow meter 212.
- the control unit 40 controls the operation of the pumping pump 21 according to the determination result.
- control unit 40 determines whether or not the pressure in the pipe of the fifth pipe 275 is a predetermined pressure based on the pressure information from the pressure gauge 213.
- the control unit 40 controls the internal pressure by adjusting the opening of the second valve 202 so that the liquid in the pipe of the first flow path 27 does not boil according to the determination result.
- step S104 When the control unit 40 compares the measurement information acquired from the thermometer 211, the flow meter 212, and the pressure gauge 213 with the sterilization condition information 51 and determines that the sterilization condition is not achieved (step S104: No). In addition to controlling the above-described temperature, flow rate and / or pressure, the comparison process in step S104 is repeated.
- control unit 40 compares the measurement information acquired from the thermometer 211, the flow meter 212, and the pressure gauge 213 with the sterilization condition information 51, and determines that the sterilization condition is achieved (step S104: Yes), the process proceeds to step S105.
- the notification means can be realized by any one of sound such as buzzer, LED, monitor display, light, image display, or a combination thereof.
- the control unit 40 controls the fifth valve 205 from the open state to the closed state, and controls the first valve 201 from the closed state to the open state, and supplies the first flow path to the first flow path.
- the liquid to be sterilized is switched from the sterilizing liquid to the liquid to be sterilized (step S105).
- a liquid to be sterilized such as a culture medium, food, or pharmaceutical is supplied from the raw material holding unit 10 to the continuous sterilization apparatus 20 (see FIG. 5).
- the sterilization target liquid is sterilized before the liquid to be sterilized is circulated in the pipe of the first flow path 27, and the continuous sterilization apparatus 20 has a heating temperature, a holding temperature, a cooling temperature, a flow rate, a pressure. Then, by switching from the sterilization liquid to the sterilization target liquid, sterilization of the sterilization target liquid can be continuously performed in a state satisfying predetermined distribution conditions in a sterilization environment. .
- the sterilization target liquid (such as a medium) sterilized in the continuous sterilization apparatus 20 is sent to the fermenter 31, so that the fermentation process can be performed in the fermentation apparatus 30.
- the fermenter 31 is inoculated with microorganisms and cultured cells adjusted by a pre-culture apparatus (not shown), and a fermentation process is performed by supplying a medium from the continuous sterilization apparatus 20.
- temperature adjustment in the fermenter 31 and supply of gas are performed according to fermentation conditions.
- the control unit 40 appropriately acquires measurement information from the thermometer 211, the flow meter 212, and the pressure gauge 213, and distributes the piping with reference to the sterilization condition information 51 based on the acquired measurement information.
- the temperature, the flow rate and the pressure in the pipe are controlled by judging whether or not the sterilization conditions in which the temperature, the flow rate and the pressure in the pipe are set have been set.
- the flow rate may be obtained by acquiring the measurement value according to the weight change in the raw material holding unit 10 or the weight change of the fermenter 31 in addition to acquiring the measurement value by the flow meter 212 described above, A measurement value may be acquired by a combination of these.
- sterilization with a sterilization medium and sterilization with a sterilizing liquid are performed via the second flow path 28 connected to the upstream side and the downstream side of the first flow path 27 through which the liquid to be sterilized is circulated. Since the conditions are adjusted, the cooling unit that has been conventionally required in the second flow path is unnecessary, and the sterilization process in the flow path can be reliably performed, and the apparatus can be downsized. it can.
- the sterilization of the liquid to be sterilized from the sterilization process of the pipe without losing the sterilization property by sterilization by steam and adjustment of the sterilization conditions using sterilized water. You can move on to processing.
- valves provided in each pipe have been described as opening and closing operations under the control of the control unit 40.
- each valve opening and closing described above is manually performed by the user. There may be.
- FIG. 6 is a schematic diagram illustrating a schematic configuration of the fermentation system according to the second embodiment of the present invention.
- FIG. 7 is a schematic diagram illustrating a schematic configuration of the continuous sterilization apparatus according to the second embodiment.
- symbol is attached
- the fermentation system 1a according to the second embodiment is provided with a continuous sterilization device 20a instead of the continuous sterilization device 20 of the fermentation system 1 described above.
- the continuous sterilization apparatus 20a includes a heat exchange unit that performs heat exchange on the liquid before and after the heat treatment by the heating unit 22 and the holding unit 23. 29.
- a pressure feed pump 21, a heating unit 22, a holding unit 23, a cooling unit 24, and a heat exchanging unit 29 are connected by piping, and a first flow path 27a that is one flow path is formed.
- the continuous sterilization apparatus 20a is formed with a second flow path 28 whose both ends are connected to the upstream and downstream sides of the first flow path 27a.
- the heat exchange unit 29 includes a first heat exchange unit 29a provided upstream (upstream side) of the heating unit 22 in the first flow path 27a, and a rear stage (downstream side) of the holding unit 23 in the first flow path 27a. And a second heat exchange unit 29b provided.
- the first flow path 27a includes the first pipe 271, the third pipe 273, and the fifth pipe 275, and the sixth pipe 276 that connects the pumping pump 21 and the heat exchange unit 29 (first heat exchange unit 29a).
- the seventh piping 277 connecting the heat exchange unit 29 (first heat exchange unit 29a) and the upstream side of the heating unit 22 is connected to the downstream side of the holding unit 23 and the heat exchange unit 29 (second heat exchange unit 29b). It has the 8th piping 278 and the 9th piping 279 which connects the heat exchange part 29 (2nd heat exchange part 29b) and the cooling unit 24.
- the first heat exchanging portion 29a includes a pipe 291 that is connected to the sixth pipe 276 at one end and connected to the seventh pipe 277 at the other end.
- the second heat exchange unit 29b includes a pipe 292 that is connected to the eighth pipe 278 at one end and connected to the ninth pipe 279 at the other end.
- the heat exchanging unit 29 is disposed so that the pipe 291 and the pipe 292 are close to each other or the outer surfaces of the pipe 291 and the pipe 292 are in contact with each other. Thereby, in the heat exchanging unit 29, the liquid at a substantially normal temperature sent from the raw material holding unit 10 or the second pipe 282 via the sixth pipe 276 and the holding unit 23 pass through a predetermined temperature (for example, 135 ° C.).
- Heat exchange is performed with the liquid maintained at the temperature via the pipes 291 and 292.
- the heat exchange part 29 may be comprised using the plate type heat exchanger by which the 1st heat exchange part 29a and the 2nd heat exchange part 29b are divided
- the sterilization target liquid having a temperature higher than the temperature of the sterilization target liquid supplied from the raw material holding unit 10 is fed into the pipe 22a of the heating unit 22,
- the sterilization target liquid having a temperature lower than the temperature of the sterilization target liquid supplied from the holding unit 23 is fed into the pipe 24 a of the cooling unit 24.
- the sterilization by steam is performed via the second flow paths 28 respectively connected to the upstream side and the downstream side of the first flow path 27a through which the liquid to be sterilized is circulated. Since the sterilization conditions are adjusted with the sterilizing water, the cooling part that has been conventionally required in the second flow path 28 is unnecessary, and the sterilization process in the flow path can be performed reliably. Miniaturization can be realized.
- the continuous sterilization apparatus 100 uses the liquid heated in the heating unit 102 (the same viscosity as the actual liquid to be sterilized).
- the heated liquid sent from the holding unit 103 is cooled by the heat exchange unit.
- a liquid having a temperature lower than the temperature of the liquid heated by the heating unit circulates, and sterilization may be insufficient. there were.
- a section (cooling unit) where the sterilization of the continuous sterilizer 100 is insufficient 104 or later) causes problems such as contamination of germs in the liquid to be sterilized.
- a slight sterilization failure of the continuous sterilization apparatus 100 causes contamination with bacteria and leads to a serious problem that continuous fermentation treatment cannot be performed for a long time. It will be.
- the thermal energy recovery is more efficiently performed.
- the sterilization process is performed by circulating the steam from the downstream side to the upstream side of the first flow path 27a through the second flow path 28, it is possible to perform the reliable sterilization process.
- the sterilization of the liquid to be sterilized from the sterilization process of the pipe without losing the sterilization property by sterilization by steam and adjustment of the sterilization conditions using sterilized water You can move on to processing.
- FIG. 8 is a schematic diagram illustrating a schematic configuration of a continuous fermentation system according to the third embodiment of the present invention.
- the continuous fermentation system 2 according to the third embodiment accommodates microorganisms and cultured cells for culturing and continuously supplies a medium into a fermenter that produces a fermented liquid by fermentation, and from the fermenter to the outside.
- the discharged microorganisms and cultured cells are separated from the fermentation broth by a separation membrane, and the unfiltered liquid (including microorganisms and cultured cells) is circulated back to the fermentor to maintain high productivity continuously for a long time.
- the fermented liquor is collected.
- the continuous fermentation system 2 shown in FIG. 8 includes a raw material holding unit 10, a continuous sterilization apparatus 20 and a storage unit 50, a fermentation apparatus 30 a that performs fermentation using the raw material sterilized by the continuous sterilization apparatus 20, and a CPU. (Central Processing Unit) and the like, and includes a control unit 40a that controls the operation of the entire continuous fermentation system 2.
- the storage unit 50 stores various programs for operating the continuous fermentation system 2, and information including various parameters necessary for the operation of the continuous fermentation system 2.
- the fermenter 30a is connected to the continuous sterilizer 20, and contains a fermenter 31 for containing and fermenting a medium, food, medicine, microorganisms, cultured cells, etc. sterilized by the continuous sterilizer 20, and only a drain in a steam atmosphere.
- a steam trap 32 to be discharged a pressure pump 33 that pumps the fermentation liquid from the fermenter 31, and a separation membrane module 34 (filtering means) that filters the fermentation liquid sent by the pressure pump 33.
- the fermenter 30a is connected to the fermenter 31 at one end, connected to the fermenter 31 at one end with the first pipe 301 provided with the steam trap described above, and connected to the separation membrane module 34 at the other end,
- the second pipe 302 provided with the above-described pumping pump 33, the third pipe 303 connected to the separation membrane module 34 at one end, the first pipe connected to the separation membrane module 34 at one end, and the second pipe 302 connected to the fermenter 31 at the other end. 4 pipes 304.
- the second pipe 302 is a flow for sending a sterilized medium, food, medicine, or a fermented liquid obtained by fermenting them with microorganisms or cultured cells from the fermenter 31 to the separation membrane module 34 via the pressure pump 33. Form a road.
- the separation membrane module 34 has a substantially box shape and has, for example, a porous membrane 341 in which a plurality of pores having an average diameter of 0.01 ⁇ m or more and less than 1.00 ⁇ m are formed.
- the porous membrane 341 is provided, for example, so as to divide the internal space of the separation membrane module 34 to form two regions R1 and R2. That is, the separation membrane module 34 is in a state where the internal space is divided by the porous membrane 341, and the equally divided spaces are communicated only by the pores.
- the porous film 341 includes an organic film made of an organic material and / or an inorganic film made of an inorganic material.
- the organic film include a polyethylene resin, a polypropylene resin, a polyvinyl chloride resin, a polyvinylidene fluoride resin, and a polysulfone.
- Those composed of an organic film containing an organic polymer compound such as those exemplified in a resin based on resin, polyether sulfone resin, polyacrylonitrile resin, cellulose resin and cellulose triacetate resin are preferred.
- polyvinyl chloride resins polyvinylidene fluoride resins
- polysulfone resins polyethersulfone resins
- polyacrylonitrile resins that are easy to form in solution and have excellent physical durability and chemical resistance
- Polyvinylidene fluoride resin or a resin containing it as the main component is most preferably used.
- the inorganic film is preferably made of ceramics.
- the second pipe 302 and the fourth pipe 304 are connected so as to communicate with the region R1
- the third pipe 303 is connected so as to communicate with the region R2.
- the fermentation liquid sent from the fermenter 31 is filtered through the porous membrane 341.
- the fermentation broth that has passed through the pores of the porous membrane 341 is introduced into the region R ⁇ b> 2 and sent to the outside through the third pipe 303.
- the fermented liquid that has not passed through the pores of the porous membrane 341 (unfiltered liquid, for example, a substance larger than the diameter of the pores such as microorganisms and cultured cells) remains in the region R1 and is fermented via the fourth pipe 304. Return to tank 31.
- the separation membrane module 34 may be one in which the internal space is divided by the porous membrane 341 described above, or a hollow fiber separation membrane module made up of a plurality of hollow fiber membranes may be used.
- the hollow fiber separation membrane module for example, in the external pressure type hollow fiber membrane module, the second pipe 302 and the fourth pipe 304 communicate with a space (corresponding to the region R1) formed by the outer surface of the hollow fiber membrane.
- the third pipes 303 are connected so as to communicate with a space (corresponding to the region R2) formed by the inner surface of the hollow fiber membrane.
- the second pipe 302 and the fourth pipe 304 are connected to communicate with the space formed by the inner surface of the hollow fiber membrane, and the third pipe 303 is connected to the outside of the hollow fiber membrane. It is connected so as to communicate with the space formed by the surface.
- the raw material that has been sterilized by the continuous sterilization apparatus 20 as described above is supplied to the fermenter 31.
- the raw material supplied from the raw material holding unit 10 is subjected to heat sterilization processing in the continuous sterilization apparatus 20 and is sent to the fermenter 31 via the fifth pipe 275.
- fermentation treatment is performed based on the raw material fed from the continuous sterilization apparatus 20, microorganisms and cultured cells, and the fermentation liquor generated by the fermentation treatment is sent to the separation membrane module 34.
- the liquid filtered by the separation membrane module 34 is collected via the third pipe 303, and the fermented liquid (unfiltered liquid) containing microorganisms and cultured cells remaining after the filtration is fermented to the fermenter 31 via the fourth pipe 304.
- the control unit 40a controls only the first valve 201 and the second valve 202 to be in an open state and the third valve 203 to the sixth valve 206 and the valve 311 to be in a closed state.
- the fermenter 31 is inoculated with microorganisms or cultured cells adjusted by a pre-culture apparatus (not shown), supplied with a medium from the continuous sterilization apparatus 20, and filtered by the separation membrane module 34 (inside the separation membrane module 34).
- the continuous fermentation process is performed by repeatedly supplying the microorganisms and cultured cells to the fermenter 31 and collecting the fermentation liquid from which the microorganisms and cultured cells are separated and removed.
- the temperature adjustment in the fermenter 31, supply of gas, etc. are performed according to fermentation conditions.
- the second flow path 28 is connected to the upstream side and the downstream side of the first flow path 27 through which the liquid to be sterilized is circulated. Since sterilization with a sterilization medium and adjustment of sterilization conditions with a sterilization solution are performed, the cooling part, which was conventionally required in the second flow path, is unnecessary, and the sterilization process in the flow path can be performed reliably. Therefore, it is possible to reduce the size of the apparatus.
- the sterilization of the liquid to be sterilized from the sterilization process of the pipe without losing the sterilization property by sterilization by steam and adjusting the sterilization conditions using sterilized water. You can move on to processing.
- the fermentation treatment can be continuously performed while maintaining sterility.
- FIG. 9 is a schematic diagram illustrating a schematic configuration of a continuous fermentation system according to a modification of the third embodiment of the present invention.
- a continuous sterilization apparatus 20a having a heat exchange unit 29 is used instead of the continuous sterilization apparatus 20 of the continuous fermentation system 2 described above. Is provided.
- the adjustment range of the adjustment temperature which the heating part 22 and the cooling part 24 each perform can be made small, and thermal energy recovery can be performed.
- the separation membrane module 34 is provided in the fermentation apparatus 30a, and the heat exchanging unit 29 is provided in the continuous sterilization apparatus 20a, so that the liquid by the thermal energy recovery more efficiently in the sterilization process.
- the fermentation treatment can be continuously performed in a state where sterility is maintained.
- each raw material holding part is connected to the first pipe 271 and a valve for controlling the flow to the first pipe 271 is provided.
- the second pipe 282 that is a flow path for introducing a sterilizing liquid is a pipe that is a flow path for introducing a liquid such as sterilized water into the fermenter 31 ( It may be branched from (not shown). Also in this case, it is preferable that the liquid that has passed through the sterilization filter 25 flows through the second pipe 282 and the fermenter 31.
- the pipe for introducing the sterilization medium is the first pipe 281 and is connected to the downstream side of the first flow paths 27 and 27a and the second pipe 282, respectively.
- the 2nd piping 282 can maintain a sterilization state independently, you may not have the 3rd piping 283. That is, the sterilization medium can be applied even in a configuration in which the sterilization medium is introduced only to the downstream side of the first flow paths 27 and 27a via the first pipe 281.
- the 1st piping 281 and the 3rd valve 203 make the 2nd distribution means.
- the operation method of the continuous sterilization apparatus, continuous sterilization apparatus, fermentation system, and continuous fermentation system of the present invention can be suitably used for reliably performing sterilization in the pipe and reducing the size of the apparatus. That is, according to the present invention, it is possible to provide a continuous sterilization apparatus that can recover heat without impairing the sterilization property of the continuous sterilization apparatus. Therefore, in addition to fermentation-related fields, medical, pharmaceutical, drug discovery, and biology It is extremely useful in various fields such as research, food production and organic compound production.
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Abstract
Description
図1は、本発明の実施の形態1にかかる発酵システムの概略構成を示す模式図である。発酵システム1は、培養のための微生物や培養細胞を収容し、発酵により発酵液を生成する発酵槽内に連続的に滅菌された培地の供給を行うものである。
第1配管281はあくまで連続滅菌装置20の最も高い位置から導入することが好ましい。蒸気は、連続滅菌装置20の上部(高い位置)から導入することが技術常識であるため、例えば、第5配管275が第1配管271より高い場合であれば、第1配管281は他端で第5配管275の第2弁202より上流側に接続する。
第3配管283は、開閉により配管内の気体または液体の流通を規制する第4弁204を有する。
第2配管282は、第1配管271との接続部分および第3配管283との接続部分の間に設けられ、開閉により配管内の気体または液体の流通を規制する第5弁205を有する。
第4配管284は、第1配管271との接続部分およびスチームトラップ26の間に設けられ、開閉により配管内の気体または液体の流通を規制する第6弁206と、を有する。
第3弁203~第6弁206は、制御部40の制御のもと、開閉動作が自動的に行われる。
スチームトラップ26は、自身に溜まった水位や内部の温度などの情報をもとに、溜まったドレインを自動的に排出する機能を有する。
図6は、本発明の実施の形態2にかかる発酵システムの概略構成を示す模式図である。図7は、本実施の形態2にかかる連続滅菌装置の概略構成を示す模式図である。なお、上述した実施の形態1の構成と同一の構成には、同一の符号を付している。図6に示すように、本実施の形態2にかかる発酵システム1aには、上述した発酵システム1の連続滅菌装置20に代えて、連続滅菌装置20aが設けられている。連続滅菌装置20aは、上述した実施の形態1にかかる連続滅菌装置20の構成に加え、加熱部22および保持部23による加熱処理前後の液体に対して補助的に熱交換を行わせる熱交換部29を有する。
図8は、本発明の実施の形態3にかかる連続発酵システムの概略構成を示す模式図である。本実施の形態3にかかる連続発酵システム2は、培養のための微生物や培養細胞を収容し、発酵により発酵液を生成する発酵槽内に連続的に培地を供給しつつ、発酵槽から外部に排出された微生物や培養細胞と発酵液とを分離膜によって分離し、未濾過液(微生物や培養細胞を含む)を発酵槽に戻す循環を行い、長時間にわたって連続的に高生産性を維持して発酵液の回収を行うものである。
図9は、本発明の実施の形態3の変形例にかかる連続発酵システムの概略構成を示す模式図である。図9に示すように、本実施の形態3の変形例にかかる連続発酵システム2aには、上述した連続発酵システム2の連続滅菌装置20に代えて、熱交換部29を有する連続滅菌装置20aが設けられている。これにより、連続的に発酵処理を行う連続発酵システム2aにおいても、加熱部22および冷却部24がそれぞれ行う調整温度の調整幅を小さくすることができ、かつ熱エネルギー回収を行うことができる。
2,2a 連続発酵システム
10 原料保持部
20,20a,100 連続滅菌装置
21,33,101 圧送ポンプ
22,102 加熱部
22a,23a,24a,221,241,291,292 配管
23,103 保持部
24,104 冷却部
25 滅菌フィルター
26,32 スチームトラップ
27,27a 第1流路
28 第2流路
29 熱交換部
29a 第1熱交換部
29b 第2熱交換部
30,30a 発酵装置
31 発酵槽
31a 攪拌部
34 分離膜モジュール
40,40a 制御部
50 記憶部
51 滅菌条件情報
201 第1弁
202 第2弁
203 第3弁
204 第4弁
205 第5弁
206 第6弁
211 温度計
212 流量計
213 圧力計
271,281,301 第1配管
272,282,302 第2配管
273,283,303 第3配管
274,284,304 第4配管
275 第5配管
276 第6配管
277 第7配管
278 第8配管
279 第9配管
311 弁
341 多孔質膜
Claims (14)
- 滅菌対象液体が流通する流路上で加熱処理、保持処理および冷却処理の一連の処理を連続的に施して前記滅菌対象液体の滅菌を行う連続滅菌装置の運転方法であって、
前記流路に、該流路を構成する部材を滅菌する滅菌媒体を流通させて、該部材を滅菌する滅菌ステップと、
滅菌処理が施された滅菌液を前記部材に流通させ、該滅菌液に対して前記一連の処理を施すとともに、該一連の処理が施される前記滅菌液の流量、温度および圧力を計測する滅菌液流通ステップと、
前記一連の処理が施される前記滅菌液に対して計測された流量、温度および圧力と、予め設定された条件としての流量、温度および圧力とを比較して、計測された流量、温度および圧力が、前記条件を達成しているか否かを判断する判断ステップと、
前記判断ステップにおいて、前記条件を達成していると判断した場合に、前記部材に流通させる液体を前記滅菌液から前記滅菌対象液体に切り替える切替ステップと、
を含むことを特徴とする連続滅菌装置の運転方法。 - 前記滅菌媒体は、蒸気であることを特徴とする請求項1に記載の連続滅菌装置の運転方法。
- 前記一連の処理は、前記加熱処理および前記保持処理を施す前後の液体同士で熱交換処理を含むことを特徴とする請求項1または2に記載の連続滅菌装置の運転方法。
- 前記滅菌対象液体は、発酵原料としての培地であることを特徴とする請求項1~3のいずれか一つに記載の連続滅菌装置の運転方法。
- 前記滅菌液および前記滅菌対象液体を、連続して発酵処理を行う発酵装置に供給することを特徴とする請求項1~4のいずれか一つに記載の連続滅菌装置の運転方法。
- 滅菌対象液体の滅菌を行う連続滅菌装置であって、
前記滅菌対象液体を加熱する加熱部、該加熱部により加熱された前記滅菌対象液体を所定の温度、所定時間で保持する保持部、および該保持部により保持されて加熱滅菌が完了した前記滅菌対象液体を冷却する冷却部を有し、少なくとも前記滅菌対象液体を流通させる第1の流通手段と、
一端から前記部材を滅菌する滅菌媒体を導入可能であって、他端が前記第1の流通手段に接続される第2の流通手段と、
一端から滅菌処理が施された滅菌液を導入可能であって、他端が前記第1の流通手段に接続される第3の流通手段と、
前記第1の流通手段を流通する液体の流量、温度および圧力を計測する計測手段と、
前記滅菌対象液体の滅菌処理にかかる流量、温度および圧力を条件情報として記憶する記憶部と、
当該連続滅菌装置全体の動作を制御する制御部と、
を備え、
前記制御部は、
前記第2および第3の流通手段を制御することにより、前記第1の流通手段に前記滅菌媒体を流通させて前記第1の流通手段を滅菌した後、前記滅菌液を前記第1の流通手段に流通させ、
該滅菌液に対して前記加熱部、前記保持部および前記冷却部による一連の処理を施すとともに、該一連の処理が施される前記滅菌液の流量、温度および圧力を前記計測手段に計測させ、
前記計測手段が計測した流量、温度および圧力と、前記記憶部に記憶された前記条件情報とを比較して、計測された流量、温度および圧力が、前記条件情報に応じた条件を達成しているか否かを判断するとともに、前記条件を達成していると判断した場合に、前記第1および第3の流通手段を制御することにより前記第1の流通手段を流通する液体を前記滅菌液から前記滅菌対象液体に切り替えることを特徴とする連続滅菌装置。 - 前記滅菌媒体は、蒸気であって、
前記第1の流通手段に接続され、前記蒸気により生じたドレインを排出する第4の流通手段を備えたことを特徴とする請求項6に記載の連続滅菌装置。 - 前記加熱部の上流側と前記保持部の下流側とをそれぞれ流通する液体同士で熱交換を行わせる熱交換部をさらに備えたことを特徴とする請求項6または7に記載の連続滅菌装置。
- 前記加熱部、前記冷却部および前記熱交換部のいずれか一つ以上が、プレート式熱交換器であることを特徴とする請求項8に記載の連続滅菌装置。
- 培地、食品、医薬品などの原料を保持する原料保持部と、
請求項6~9のいずれか一つに記載の連続滅菌装置であって、前記原料保持部から供給される前記原料を前記滅菌対象液体として連続して滅菌する連続滅菌装置と、
前記連続滅菌装置によって滅菌処理された前記原料を用いて発酵処理を行う発酵槽と、
を備えたことを特徴とする発酵システム。 - 前記流量は、前記計測手段による計測結果、前記原料保持部の重量変化、および/または前記発酵槽の重量変化に応じて決定されることを特徴とする請求項10に記載の発酵システム。
- 前記発酵槽に滅菌液を導入する配管から分岐された配管を介して前記流路に前記滅菌液を導入することを特徴とする請求項10または11に記載の発酵システム。
- 請求項10~12のいずれか一つに記載の発酵システムと、
前記発酵槽において生成された発酵液を濾過する濾過手段と、
を備えたことを特徴とする連続発酵システム。 - 前記原料保持部は、複数設けられることを特徴とする請求項13に記載の連続発酵システム。
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US14/899,624 US10370633B2 (en) | 2013-06-24 | 2014-06-23 | Method of operating continuous sterilizing apparatus, continuous sterilizing apparatus, fermenting system, and continuous fermenting system |
EP14817532.6A EP3015117A4 (en) | 2013-06-24 | 2014-06-23 | Method for operating continuous sterilization device, continuous sterilization device, fermentation system, and continuous fermentation system |
CN201480035351.4A CN105358180B (zh) | 2013-06-24 | 2014-06-23 | 连续灭菌装置的运转方法、连续灭菌装置、发酵系统以及连续发酵系统 |
BR112015031124A BR112015031124B1 (pt) | 2013-06-24 | 2014-06-23 | método para operar um aparato de esterilização, aparato de esterilização e sistemas de fermentação |
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BR112015031124A2 (pt) | 2017-07-25 |
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