Hemicellulose post-addition method for mushroom substrate

Abstract

This provides a highly efficient method for cultivating mushroom substrates that is resistant to harmful fungi. [Solution] After creating a substrate material in which mycelium has spread, hemicellulose is added.

Description

Technical Field

[0001] The present invention relates to a cultivation method in which mushroom mycelium is spread on a mushroom bed and then hemicellulose is added.

Summary of the Invention

Problems to be Solved by the Invention

[0002] In mushroom bed cultivation, it is resistant to harmful bacteria and has high production efficiency. Means for Solving the Problems

[0003] Mycelium is spread only with sawdust as the base material of the mushroom bed, and later additives such as bran are added.

[0004] Regarding the fact that mushrooms grow densely in artificial cultivation, the following can be considered. · In mushroom cultivation, husks of grains such as bran are used as nutrients. · Characteristic components in bran etc. are (free) hemicellulose (polysaccharide containing xylose). · The hemicellulose concentration increases (remains, in lignin) at the end of natural wood decay. · Hemicellulose acts as a (powerful) inducer for mushroom (spore) generation. Effects of the Invention

[0005] In the process of mycelium spread of the mushroom fungus, easily decomposable (non-wood such as free hemicellulose) nutrients are removed, thereby suppressing the reproduction of harmful bacteria with a short life cycle that prefer them. It is considered that it is also possible to prevent the consumption of hemicellulose at an early stage. Modes for Carrying Out the Invention

[0006] In the mushroom bed cultivation of saprophytic mushrooms, mycelium is spread only with sawdust as the substrate material, and then hemicellulose, nitrogen components, etc. are added, and the process proceeds with aging, generation process, etc.

[0007] If it is pulverized instead of a round log of raw wood, the spread of mycelium will occur rapidly.

[0008] Hemicellulose can be added to the substrate after the mycelium has spread, in the form of a liquid (such as bean broth).

[0009] Since mycelium from the same strain is compatible, there is no problem in breaking up the substrate and mixing in solid additives. [Industrial applicability]

[0010] Mushroom production efficiency will increase. Mushrooms are used for food and for their pharmacological effects.

[0011] This could also be useful in the search for new cultivated varieties of mushrooms.

[0012] This is also expected to be useful in the search for substances with various physiological activities in fungi.

[0013] It is also conceivable that even more refined effects could be obtained by using structural analogs of xylose (such as lactose and IPTG).

[0014] Many methods that have been practiced empirically for a long time are likely to be re-examined and developed from an ecological perspective (for example, the act of beating logs is thought to replicate the process where decaying substrate material falls to the ground and decays rapidly).

Claims

1. In mushroom cultivation using a substrate, this method involves allowing the mycelium to spread without adding substances containing free hemicellulose, then adding them later, and proceeding with subsequent processes.

2. A method of adding an additive in liquid form, as described in claim 1 above.

3. A method of mushroom cultivation that involves adding additives that induce mushroom formation and are not broken down by the mushroom fungus.

4. A product that uses one of the substances described in claim 3 above, which has the same mechanism of action as xylose.

5. In mushroom cultivation using substrate, this method involves allowing mycelium to spread without adding materials with a lower C / N ratio than wood, then adding those materials later and proceeding with subsequent processes.