Today’s mushroom is edible and medicinal and has been inhabited on the soil surface or rotted woods of the broad-leaved trees from summer to autumn.
I will, therefore, present today a research paper in which the authors investigated the different supplements for the cultivation of this mushroom.
Oak sawdust was used as the main substrate, which was amended either with rice bran, fermented soybean powder, or wheat bran at different ratios.
The substrate mixtures were moistened until 70%, filled in plastic bottles, and steam-sterilized for 90 minutes at 121°C (250°F).
After the cooldown, the substrate was inoculated and incubated for 30 days at 23 to 25°C (73-77°F) in the dark.
When the mycelia fully colonized the substrate, the top of the medium was slightly scratched.
The bottles were then transferred into the fruiting room where they were first maintained at 14 to 16°C (57-61°F) and relative humidity of 85 to 95% for 2 days while applying light at 350 lux for 12 hours per day.
After this initiation phase, the temperature was then raised to 21 to 23°C (70-73°F) while maintaining the relative humidity and lighting at the same values.
The highest growth rate could be found using 5 to 15 % rice bran, followed by 10 % wheat bran and 5% fermented soybean powder.
When it comes to the number of fruitbodies, the authors found that using 10 % rice bran led to the highest number, but they noticed that the contamination seemed to be increasing in proportion to the high mixture of rice bran.
Enjoy growing and talk to you in the next video.
📝Shim JO, Chang KC, Kim TH, et al. The Fruiting Body Formation of Oudemansiella radicata in the Sawdust of Oak (Quercus variabilis) Mixed with Rice Bran. Mycobiology. 2006;34(1):30-33. doi:10.4489/MYCO.2006.34.1.030