JPH05268941A - Production of mycelium of mushroom - Google Patents

Abstract

PURPOSE:To promote growth and multiplication of mushroom and to surely obtain mushroom mycelia by covering and sealing a medium for culturing mycelia of mushroom in a sheet having very small holes for preventing miscellaneous germs from passing through while permitting the passing through of air. CONSTITUTION:A medium 4 for culturing mycelia of mushroom is covered with and sealed in a sheet 1 having a great number of very small holes for preventing various germs from passing through while permitting the passing through of air and mycelia of mushroom are cultured in the medium 4. The very small pores have a size of preferably 4-5 microns to prevent passage of spores of various germs. For example, nonwoven fabric, etc., are used as the sheet having the very small holes. To be concrete, for example, the medium 4 is fed from a mouth part 2 of the baggy sheet 1 and the sheet is sealed and sterilized. Then the mouth part 2 is opened at a part 5 under a seal part 3, a spawn of mushroom is inoculated into the medium 4 and the mouth part 2 is resealed at a part 6 under the part 5 to culture the mycelia.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a mycelium of a mushroom used for cultivating a mushroom bed.

[0002]

2. Description of the Related Art As shown in FIG. 4 (A), a culture medium 24 is put in a polypropylene bag 21, the mouth 22 of the bag 21 is passed through a cylindrical cap receiving frame 25, and the tip is cap receiving frame.
The cap 27 is folded back on the outer peripheral side of 25, covered with a filter 26 made of, for example, paper, and has a hole 28 for ventilation thereon.
Cover. In this state, the mycelium of the mushroom is cultured in the medium 24 to produce a mycelium.

[0003]

In this conventional method for producing a mycelium of a mushroom, the mouth 22 of the bag 21 and the filter 26 are provided between the receiving frame 25 and the cap 27 as shown in FIG. 4B. The wrinkles are close to each other, and many gaps 29 are formed there. Then, various bacteria invaded from the outside of the bag 21 into the inside through the gap 29, which propagated in the medium 24 to destroy the medium 24, resulting in frequent accidents in which the production of mycelium failed.

The present invention has been made in order to solve the above-mentioned problems (technical problems) of the prior art. By enclosing and sealing the medium with a sheet, it is possible to prevent the invasion of various bacteria into the medium and to mushroom the medium. Can be maintained in a state suitable for the growth of mycelium, and in addition, the air can be well supplied to the culture medium, the growth and reproduction of mushroom mycelia can be promoted, and the production of mycelium is ensured. It is an object of the present invention to provide a method for producing a mycelium of a mushroom which can be performed with high performance.

[0005]

In order to achieve the above object, the method for producing a mycelium of a mushroom according to the present invention comprises a mycelium of a mushroom which prevents passage of various bacteria in a medium for culturing the mycelium of a mushroom. The mycelium is produced by enclosing and sealing with a sheet having a large number of fine pores which allow the passage of air for the culture of (1) and culturing the mycelium of the mushroom in the above medium.

[0006]

When the mushroom mycelium is produced, the sheet prevents external bacteria from entering the inside and adhering to the medium. On the other hand, air reaches the culture medium through the micropores of the sheet. Therefore, the growth of mushroom mycelia in the medium is favorably performed.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a sheet for surrounding a culture medium, and in this example, the sheet is formed into a rectangular bag shape. For example, the dimension A in FIG. 2 is about 13 cm, and the height B is about 24 cm. The bag may have another shape.
The sheet 1 has a large number of micropores which allow the passage of air for the cultivation of mushroom hyphae. The micropores are sized to prevent passage of bacteria (spores of bacteria). Generally, the spores of various bacteria have a head of 5 to 6 microns and a body length of 6 to 8 microns, so the micropores are 4 to 5 microns, which is smaller than that. Nonwoven fabric is used as the sheet 1 having such fine pores. It may be a woven fiber cloth or a film. Further, it is preferable to use those formed of a material capable of thermocompression bonding. Reference numeral 2 denotes the mouth portion of the sheet 1 formed into the bag shape. Reference numeral 3 denotes a portion of the mouth portion 2 which is sealed, for example, thermocompression-bonded, and 4 denotes a well-known medium which is surrounded and sealed by a sheet.

Next, the production of mushroom mycelium using the sheet 1 will be described. First, in the state of FIG. 2, a medium (well-known artificial medium) 4 is put into the bag-shaped sheet 1 from the mouth 2. As for the amount to be inserted, the height C in FIG.
The amount is about 1 cm. Next, the mouth portion 2 is sealed as indicated by reference numeral 3 to seal the medium 4 inside. Then sterilize it. For example, as is well known, it is sterilized by steaming in a sterilization pot. Next, the mouth portion 2 is cut at a portion under the seal portion 3, for example, indicated by reference numeral 5 to open the mouth portion 2, and an inoculum of mushrooms (for example, shiitake mushrooms) is planted in the medium 4 inside, and under the cut portion 5. The mouth portion 2 is sealed again at the portion 6 of FIG. In this state, as is well known, the temperature, humidity and the like are appropriately maintained, and the mycelia of the mushroom are cultured in the medium 4. The culture period is, for example, about 3 months. When the culture is completed, mycelia are completed in the medium 4. In the mycelium thus produced, the sheet 1 is removed to generate mushrooms (for example, shiitake mushrooms), or only the upper part of the bag-shaped sheet 1 is cut and opened, as is conventionally done. Mushrooms are generated from there (for example, shimeji mushrooms).

In the process of culturing the mycelium, since the medium 4 is surrounded and sealed by the sheet 1, external bacteria do not enter the medium 4, and the medium 4 is kept in a state suitable for the growth of mushroom mycelia. . Further, the air outside the sheet 1 is supplied toward the medium 4 inside through a large number of fine holes in the sheet 1, so that the growth and multiplication of mushroom mycelia is vigorous. In particular, since air is supplied from the entire periphery of the medium 4 through a large number of fine holes existing in the entire sheet 1, the above-mentioned mushroom fungus has a high metabolic activity such as shiitake mushroom and a large amount of air demand. Even if there is, a sufficiently large amount of air can be supplied to it, and the growth of mycelia can be promoted.

In the above-mentioned culture process, nutrients and enzymes are added to the medium 4 as needed. The method is the same as in the case of the above inoculation. That is, the mouth portion 2 of the bag is cut under the sealing portion 6, necessary additives are added to the medium 4, and the mouth portion 2 is sealed again. For these tasks,
It is advisable to prepare the bag-shaped sheet 1 with a slightly long length so that the above-mentioned cutting and resealing can be performed.

Next, when the sheet 1 as described above is used,
Aeration is performed throughout the sheet 1 so that a sufficiently large amount of air can be given to the medium 4. Therefore, the medium 4 of the same size as the conventional one, for example, a medium of about 1.0 to 1.2 kg, and a larger one can be used. A medium, for example, a medium of about 3.0 kg can be produced. Such a large-sized medium can allow mushrooms to be formed into a large size, improve the quality of mushrooms, and provide a sufficient amount of cells in the medium. Further, since air can be uniformly supplied to the medium 4 from the entire circumference thereof, the mycelia can be rapidly grown.

Next, FIG. 3 showing a different embodiment of the present application will be described. In this example, the transparent portion 10 is provided on a part of the sheet 1e. The transparent portion 10 is formed by partially making the non-woven sheet 1e transparent by a well-known transparent treatment with a chemical. When such a transparent portion 10 is provided, the state of the medium 4e inside can be observed from the outside through the transparent portion 10, which is convenient for monitoring the growth state of mycelia in the medium 4e. Further, the transparent portion 10 formed by the above-mentioned transparentizing treatment has no air permeability. Therefore, the air permeability of the sheet 1e as a whole can be adjusted by appropriately selecting the area of the transparent portion 10.
The air permeability may be adjusted by selecting the above area according to the type of medium, the nature of mushrooms, and the culture method.
In addition, parts that are considered to be the same or equivalent in configuration to those in the previous figure in terms of function are denoted by the same reference numerals as those in the previous figure with the letter e added to omit redundant description.

[0013]

As described above, according to the present invention, in the process of cultivating the mycelium of mushrooms in the medium 4, the medium 4 is surrounded and sealed by the sheet 1 so that various bacteria are prevented from entering the medium 4. Since it can be prevented, the inside of the sheet 1 is in an aseptic state, and there is an effect that the medium 4 can be maintained in a state suitable for culturing mushroom mycelia.

Further, in the above culturing process, even if the medium 4 is sealed by the sheet 1 as described above, the air for culturing the mycelium of the mushroom is supplied to the medium through a large number of micropores of the sheet 1. Therefore, there is an effect that the hyphae of mushrooms can be actively grown and proliferated. As a result, there is a usefulness that the production of mushroom mycelium can be performed with high reliability.

[Brief description of drawings]

FIG. 1A is a perspective view showing a state in which a medium is surrounded and sealed by a sheet, and FIG. 1B is a sectional view taken along the line I-I in FIG.

FIG. 2 is a perspective view of a bag-shaped sheet.

FIG. 3 is a front view showing another embodiment of the sheet, in which the sheet is provided with a transparent portion so that the medium inside can be seen.

FIG. 4A is a longitudinal sectional view schematically showing a conventional mycelium producing means, and FIG. 4B is an enlarged sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

 1 sheet 4 medium

Claims (1)

[Claims] 1. A medium for cultivating mushroom mycelia is surrounded and sealed by a sheet having a large number of fine pores which inhibits the passage of bacteria and allows the passage of air for culturing mushroom mycelia. A method for producing a mycelium of a mushroom, which comprises culturing the mycelium of a mushroom in a medium to produce a mycelium.