ABSTRACT
The edible mushroom Pleurotus spp. (hiratake) is cultivated in various lignocelullose-based substrates. Depending on the formulation of the medium, various levels of productivity are obtained. This research was therefore carried out to study the in-vitro development of 3 P. ostreatus strains, cultured in elephant-grass culture media supplemented with soy, wheat, rice and corn bran at three different concentrations (0, 10 and 20%). The cultures were incubated at 28º C. Biomass and mycelium growth were evaluated. It was verified that the culture medium with 20% of soy bran increased the mycelium biomass and the mycelium growth for 2 of the P. ostreatus strains; wheat-bran supplement was less efficient than the soy bran, and the use of rice and corn bran did not result in an increase of the mycelium biomass and mycelium growth of the cultivated strains.
KEY WORDS
mycelium growth; mycelium biomass; supplement; mushroom; hiratake
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