Additive for mushroom growth medium
AssigneeSETOLAS Holdings, Inc.
InventorsHajime Nakamura, Hikaru Ando
Life of this patent
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Abstract
Provided is an activator for a growth medium used for artificial cultivation of mushrooms, and the activator is used in a growth medium for mushroom artificial cultivation and improves and stabilizes the yield. The activator for a mushroom growth medium includes, as antacid inorganic substances, aluminum, calcium, and magnesium. By changing the proportion of each element, the neutralization function is adjusted. By adding a small amount of the activator, an optimum cultivation pH for an intended type of mushroom is achieved, and the optimum cultivation pH can be maintained.
Claims16
A method of producing an additive for a mushroom growth medium which comprises an aluminum compound, a calcium compound, and a magnesium compound, the method comprising:
- mixing the aluminum compound, the calcium compound, and the magnesium compound so as to produce the additive in which a proportion of the aluminum compound is 3 to 30 wt % in terms of Al2O3, a proportion of the calcium compound is 35 to 60 wt % in terms of CaO, and a proportion of the magnesium compound is 3 to 30 wt % in terms of MgO, wherein
- the proportion of the calcium compound in terms of CaO is larger than the proportion of the aluminum compound in terms of Al2O3,
- the proportion of the calcium compound in terms of CaO is larger than the proportion of the magnesium compound in terms of MgO,
- the additive maintains a pH of 4.0 or more for 60 minutes or more as antacid-characteristics by modified Fuchs method which comprises preparing a solution by adding 1.00 g of a sample of the additive to 50 mL of 0.1 mol/L hydrochloric acid;
- adding a drop of 0.1 mol/L hydrochloric acid to the solution at a dropping amount of 2.0±0.1 mL/min;
- and staring measurement of a pH value of the solution 10 minutes after the addition of the sample, and
- the amounts of the aluminum compound, the calcium compound and the magnesium compound are a total amount of the additive.
An additive for a mushroom growth medium which comprises a mixture of an aluminum compound, a calcium compound, and a magnesium compound, wherein
- the proportion of the calcium compound in terms of CaO is larger than the proportion of the aluminum compound in terms of Al2O3, and the proportion of the calcium compound in terms of CaO is larger than the proportion of the magnesium compound in terms of MgO,
- the proportion of the aluminum compound is 3 to 30 wt % in terms of Al2O3, the proportion of the calcium compound is 35 to 60 wt % in terms of CaO, and the proportion of the magnesium compound is 3 to 30 wt % in terms of MgO,
- the additive is able to maintain a pH of 3.0 or more for 90 minutes or more and maintain a pH of 4.0 or more for 60 minutes or more as antacid-characteristics by modified Fuchs method which comprises preparing a solution by adding 1.00 g of a sample of the additive to 50 mL of 0.1 mol/L hydrochloric acid;
- adding a drop of 0.1 mol/L hydrochloric acid to the solution at a dropping amount of 2.0±0.1 mL/min;
- and staring measurement of a pH value of the solution 10 minutes after the addition of the sample, and
- the amounts of the aluminum compound, the calcium compound and the magnesium compound are a total amount of the additive.
Dependencies are inferred from the claim text.