1994 Volume 41 Issue 6 Pages 419-424
Twentyfive samples of Hiratake(Pleurotus ostreatus) and sixteen samples of Maitake (Grifola frondosa) mushroom cultivated on sawdust substrate beds paired with its substrate beds, which were all of distinct origins, were available. Proximate compositions and mineral contents in these mushrooms and substrate beds were determined. Effect of the sawdust substrate composition on the mushroom composition were examined. In Hiratake mushroom, protein content in fruiting bodies was significantly related to nitrogen content in the substrates. Concentrations of minerals to the fruiting bodies from the substrates were found in K (3.20times), Na (1.64times), P(1.70times), Cu (1.90 times), Zn (2.38times) and Cd (2.75times) but significant correlation between them was only found in Cd. In Maitake mushroom, protein content in fruiting bodies was not significantly related to nitrogen content in the substrates. Concentration to the fruiting bodies from the substrates were found in K (16.51times), Na (6.59times), Mg (1.24times), P (4.04times), Cu (3.37times), Zn (4.10times) andCd (9.26 times) but significant correlation between them was only found in Cu.
