JPH08113506A - Agent for stimulating growth of mushroom - Google Patents

Abstract

PURPOSE: To obtain a mushroom growth-stimulating agent enabling to always stably culture mushrooms and increase the crop yield, even when a growth- stimulating material except conventional medium components is not used in the artificial culture of the mushroom. CONSTITUTION: This mushroom growth-stimulating agent comprises a powdery material containing silicon dioxide, magnesium oxide, and aluminum dioxide as main components. Especially, the characteristic of the mushroom growth- stimulating agent comprises containing the silicon dioxide in an amount of >=30% and the magnesium oxide and the aluminum dioxide in amounts of 15%, respectively.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention is a mushroom growth promoter used in artificial cultivation of mushrooms for promoting mushroom growth and increasing yield.

[0002]

[Prior Art and Problems] The conventional culture medium used for artificial cultivation of mushrooms is sawdust and rice bran mixed with water. Organic materials such as bran, okara, corncob, and beet bulb are added to this. It has been attempted to increase the yield of mushrooms by mixing the mushrooms as a growth promoting material to grow the amount of mycelia.

However, it is not the nutritional components of these materials that have the effect of promoting the growth of mushrooms, but the water-holding properties of the materials and the porosity due to being placed in the medium. It is considered that the ingredients of materials such as bran, okara, corn cob, beet bulb and seaweed and food waste used in combination with them are mainly cellulose and lignin, which are less organically nutritious. It is not expensive, and even in Japanese Examined Patent Publication No. 1-58927, corncobs have a particle size (mesh) of 6 to 60.
It is clear from the fact that it is said to have an effect.

Therefore, even if these mushroom growth-promoting materials were used, a remarkable increase in yield was not observed, and stable mushroom cultivation could not always be achieved due to immaturity of the mixing technique and the like. In order to stabilize the management, it is possible to expand the factory and increase the production volume, but the current situation is that it leads to an increase in the cost of capital investment and the actual management is not stable.

The inventor of the present invention has found that normal nutrients for mushrooms are sufficient as organic nutrients for mushrooms, and the fact that the increase in yield is not so remarkable is due to the ability of mycelial cells to absorb these nutrients during hyphal growth. I think that it is because I can not exert it sufficiently,
As a result of the research, the present invention has been completed.

[0006]

[Means for Solving the Problems] The present invention makes it possible to always grow mushrooms stably in artificial cultivation of mushrooms without using conventional growth promoting materials other than the usual culture base components.
And it is intended to provide a mushroom growth promoter capable of increasing the yield, and it is found that a specific inorganic substance is very effective for hyphal growth of mushrooms,
The present invention has been completed, and the gist thereof is a mushroom growth promoter mainly composed of a powdery material containing diatom dioxide, magnesium oxide and aluminum dioxide. It is characterized by containing 15% or more of each of magnesium oxide and aluminum dioxide.

[0007] In the artificial cultivation of mushrooms, the inoculum inoculated into the culture medium first grows as mycelia in the culture medium in the culture bottle, and the growth degree of the mycelia is proportional to the yield of mushrooms. The process of its growth is to grow from a primary hyphae with one nucleus per hypha to a secondary hyphae with two nuclei, and then to produce fruiting bodies for mushrooms. While mycelia cells can take in nutrients,
It can be said that the yield is decided. Thus, the basic component that obtains its activity for mushroom mycelial cells is water, and it is also an organic component.

The mechanism by which this product contributes to the activity of mycelia is not clear, but it is whether mycelium cells can take up a large amount of water to determine the yield of mushrooms. Is heated in the sterilization process, which acts on water molecules (clusters), causing water molecules to disperse or subdivide,
Water easily penetrates into mycelium cells. As a result, the hyphae cells obtain sufficient water to be activated, and the activated cells can actively absorb organic nutrients and the like.As a result, the hyphae cells actively grow and the hyphae spread to the culture medium, resulting in It is estimated that the yield of mushrooms is high. Therefore, the growth promoting agent of the present invention does not act directly on mycelial cells and does not act on the cells as a nutrient, but indirectly acts on water so that it is easily absorbed by mycelial cells. It is considered to enhance the nutrient absorption capacity.

The growth accelerating agent of the present invention is powdery and the particle size of powder is preferably about 1 to 50 μm. Calcium oxide may be added as a component other than diatom dioxide, magnesium oxide and aluminum dioxide, and the amount thereof is preferably about 1 to 10%. Further, a conventional organic growth promoting material may be used together with the growth promoting agent of the present invention.

[0010]

Example: Cedar sawdust, rice bran and water were mixed in a culture bottle made of PP having a diameter of 58 mm and 850 cc to make a medium of 65% water, and 480 g of sawdust per culture bottle,
83 g of rice bran was packed, and three groups of 48 units were prepared. In test group 1, 2 g of the growth promoter of the present invention was added to the culture medium for each bottle.
3 g was added to test section 2 and 10 g was added to test section 3. An inoculator was used to inoculate pure white Enoki only inoculum, and a PP urethane stopper was used for sterilization in a sterilizer to perform mycelial culture.
After sprouting, suppression, and growth steps were performed to harvest. For comparison, a cultivation experiment was conducted under the same conditions in the control group and in a medium without addition of this agent.

[Table 1] Enoki only cultivation data table

[0011]

[Effect] As described above, by using the growth promoting agent of the present invention, the harvesting days of fruiting bodies are shortened, and it is confirmed that the yield is increased, and the yield is remarkably 20 to 30%. It was confirmed that the effect of the agent of the present invention was extremely large.

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Claims (4)

[Claims] 1. A mushroom growth promoter comprising a powdery material mainly containing diatom dioxide, magnesium oxide and aluminum dioxide. 2. A mushroom growth promoter according to claim 1, which contains 30% or more of diatom dioxide and 15% or more of magnesium oxide and aluminum dioxide, respectively. 3. The mushroom growth promoter according to claim 1, which contains 1 to 10% of calcium oxide. 4. A mushroom growth promoter according to claim 1, which is a powdery substance having a size of 1 to 50 μm.