JPH08242841A - Producing apparatus of basidiomycetes medium - Google Patents

Abstract

PURPOSE: To obtain a producing apparatus of a Basidiomycetes medium capable of uniform heat sterilizing of a Basidiomycetes medium in a very short time and efficiently cooling. CONSTITUTION: The objective apparatus is composed of a quantitatively supplying apparatus A supplying a Basidiomycetes medium mixed a main raw material and an auxiliary raw material in a prescribed amount to next process, a heat treatment apparatus B heat sterilizing the supplied Basidiomycetes medium, a cooling apparatus C cooling the heated Basidiomycetes medium by a cold air and a spawn mixing apparatus D mixing spawn into the cooled Basidiomycetes medium and controlling water in the Basidiomycetes medium with a sterilized controlling water, as necessary. The produced Basidiomycetes medium is filled and packed in a filling and packing apparatus E.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a basidiomycete medium in which the steps from sterilization of the medium to addition of basidiomycetes are automated.

[0002]

2. Description of the Related Art Conventionally, as an apparatus of this type, Japanese Patent Laid-Open No.
As described in JP-A-23863, there is known an apparatus for producing a basidiomycete culture medium which is sterilized by heating with a screw type heating apparatus using saturated steam, hydrated and cooled, and then packaged. Further, as described in Japanese Utility Model Laid-Open No. 5-90164, a cooling device is known which cools a heated raw material by placing the raw material on a swirling flow in a sealed state.

[0003]

In the former of those described in the prior art, the basidiomycete medium is contacted with water vapor in a nodular state between the pitches of the screw, which is improved in terms of uniform heat sterilization. However, in the case of a basidiomycete culture medium, it is necessary to completely sterilize the basidiomycete medium, so that it tends to be partially overheated in order to prevent sterilization failure due to insufficient heating. In the case of basidiomycete medium, when this heating becomes excessive, hemicellulose of sawdust that should be used for basidiomycetes is thermally decomposed, and converted to formic acid, etc., which has a problem that it inhibits the growth of basidiomycetes, In addition, there is a problem that various bacteria are generated in the basidiomycete medium when heating is insufficient.

Further, in the latter, a device for the purpose of cooling only the raw material, and a device for adding a basidiomycete or a basidiomycete culture medium mixing device for mixing auxiliary materials such as sawdust and nutrients is not disclosed.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to uniformly sterilize a basidiomycete culture medium in an extremely short time and to obtain the effect. The present invention aims to provide an apparatus for producing a basidiomycete culture medium capable of effective cooling.

[0006]

Means for Solving the Problems To solve the above problems, the present invention provides a quantitative supply device for quantitatively supplying a basidiomycete culture medium containing a main raw material and an auxiliary raw material, and heat-sterilizes the supplied basidiomycete culture medium. Heat treatment device, cooling device that cools the heated basidiomycete culture medium with cold air, and inoculum that mixes the seed culture with the cooled basidiomycete culture medium and adjusts the water content of the basidiomycete culture medium with sterilized adjusted water as necessary. And a mixing device.

[0007]

The basidiomycete medium is uniformly heat-sterilized in an extremely short time, and formic acid or the like is not generated due to excessive heating. In addition, the heat-sterilized basidiomycete culture medium is effectively cooled in the cooling expansion can by utilizing latent heat of vaporization by cold air. In addition, the water content of the basidiomycete culture medium is adjusted with sterilized adjusted water.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a configuration explanatory view of a basidiomycete culture medium production apparatus according to the present invention.

As shown in FIG. 1, the apparatus for producing a basidiomycete culture medium, as shown in FIG. 1, supplies a fixed amount of a basidiomycete culture medium containing a main raw material and an auxiliary raw material, and heat-sterilizes the supplied basidiomycete culture medium. It is composed of a heat treatment device B, a cooling device C that cools the heated basidiomycete culture medium with cold air, and an inoculum mixing device D that mixes the inoculum into the cooled basidiomycete culture medium. E is a filling and packaging device for the produced basidiomycete culture medium.

[0010] The constant quantity supply device A is a constant quantity supply device 1 for supplying sawdust etc. as a main raw material as it is or a water content of which is adjusted by a conventional method, and a rice bran quantitative addition for adding a nutrient source such as rice bran as an auxiliary raw material. And a supply device 2.

In the heat treatment apparatus B, the gas stream cooking tube 4 constituting the circulation circuit, the cyclone 5 interposed in the gas stream cooking tube 4, the steam circulation blower 7 and a certain amount of basidiomycete medium are charged into the gas stream cooking tube 4. It consists of a closing rotary valve 3. A discharge rotary valve 6 is installed at the discharge port of the cyclone 5. Reference numeral 8 is for replenishing the steam consumed by the pressure control device into the gas stream cooking tube 4.

The cooling device C is provided with a cooling expansion can 9 having a cylindrical upper part and a conical lower part, and sterilizes air through a blower blower 10, a cool air generating heat exchanger 11 and an air filter 12. The cold air is introduced into the cooling expansion can 9 and the air in the cooling expansion can 9 is exhausted to cool the heat-treated basidiomycete culture medium.

The inoculum mixing device D mixes the inoculum supplied from the inoculum supplying device 16 with the basidiomycete culture medium cooled in the cooling expansion can 9, and further mixes the inoculum 13 with the water supply pump 14 and water if necessary. The adjusted water sterilized by the filter 15 is supplied to the inoculator 13 to adjust the water content of the basidiomycete culture medium.

The filling and packaging apparatus E comprises a filling and packaging machine 17 and the like, and packages the basidiomycete culture medium which has been sterilized and whose water content has been adjusted.

The operation of the basidiomycete culture medium production apparatus configured as described above will be described. The basidiomycete culture medium containing nutrients such as rice bran as an auxiliary raw material is quantitatively put in the air-flow steaming tube 4 by the rotary valve 3 while the main raw material such as sawdust is adjusted as it is or by a conventional method. throw into.

A high pressure (for example, 1 to 8) is set in the air flow steaming pipe 4.
Saturated steam of kg / cm ² ) has a high speed (for example, 15 to 3).
(5 m / sec), and the basidiomycete culture medium that has been input is instantaneous (2 to 5 seconds) due to the latent heat of vaporization of saturated steam.
It is heat sterilized.

The end portion of the gas stream steam-cooking tube 4 is connected to a cyclone 5 to separate saturated steam and heat-sterilized basidiomycete culture medium in the cyclone 5, and the basidiomycete culture medium is cooled and expanded in a can 9 by a rotary valve 6. Sent to. on the other hand,
The saturated steam is circulated through the steam circulation blower 7. The pressure of the saturated steam is controlled to a predetermined pressure by the pressure control device 8, and a necessary amount of the saturated steam is replenished in the gas stream cooking tube 4.

Aseptic cold air is sent into the cooling and expanding can 9 by a blower blower 10, a cold air generating heat exchanger 11, an air filter 12, etc., and the heated basidiomycete medium has its own latent heat of evaporation and cold air. Combined with the sensible heat of, it is instantly cooled.

The basidiomycete medium cooled in the cooling and expanding can 9 to a temperature close to room temperature is further guided to the inoculum 13 and mixed with the inoculum supplied from the inoculum supply device 16. In addition,
When the inoculum is a liquid, it is supplied in a fixed amount by a pump.

In the inoculation machine 13, sterilized adjusted water is supplied by a water supply pump 14 and a water filter 15 as needed, and the water content of the basidiomycete culture medium is adjusted. Then, the basidiomycete culture medium, which has been sterilized and the water content of which has been adjusted, is packaged by the filling and packaging machine 17.

[0021]

As described above, according to the present invention, gas-solid contact is performed while flowing in a high-speed saturated steam in a dispersed state in a particle state, so that uniform heat sterilization can be performed in an extremely short time. It is possible to prevent generation of formic acid and the like due to excess. In addition, the sterilized basidiomycete medium is sterilized by heat and is supplied into the cooling expansion can in a dispersed state in particle units, and since it has a structure in which cold air is blown directly into the cooling expansion can, it utilizes the latent heat of vaporization for its effect Can be cooled effectively.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a basidiomycete culture medium production apparatus according to the present invention.

[Explanation of symbols]

A ... Fixed amount supply device, B ... Heat treatment device, C ... Cooling device,
D ... Seed-mixing device, E ... Filling and packaging device, 1 ... Ogudust fixed amount supply device, 2 ... Rice bran fixed amount supply device, 3 ... Input rotary valve, 4 ... Airflow steaming pipe, 5 ... Cyclone, 6 ... Discharge rotary valve, 7 ... Steam circulation blower, 8 ... Pressure control device, 9 ... Cooling and expanding can, 10 ... Blower, 11 ... Cold air generating heat exchanger, 12 ... Air filter, 13 ... Inoculator, 1
4 ... Water supply pump, 15 ... Water filter, 16 ... Inoculum supply device, 17 ... Filling and packaging machine.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nagashi Fuse 339 Noda, Noda City, Chiba Prefecture Kikkoman Corporation

Claims (1)

[Claims] 1. A quantitative supply device for quantitatively supplying a basidiomycete culture medium containing a main raw material and an auxiliary raw material, a heat treatment device for heat-sterilizing the supplied basidiomycete culture medium, and a heated basidiomycete culture medium with cold air. A cooling device for cooling and a basidiomycete medium characterized by comprising a seedlings mixing device for mixing the cooled basidiomycete medium with the inoculum and adjusting the water content of the basidiomycete medium with sterilized adjusted water as needed. Manufacturing equipment.