1995 Volume 42 Issue 7 Pages 471-477
Ten samples of Bunashimeji [Hypsizigus marmoreus (Peck) Bigelow], fourteen samples of Nameko [Pholiota nameko (T. Ito) S. Ito et Imai in Imai] and eight samples of Enokitake [Flammulina velutipes (Curt.: Fr.) Sing.] mushroom cultivated on sawdust substrate beds were obtained together with their substrate beds, which were all of distinct origins. By analyzing proximate compositions and mineral contents in both these mushrooms and their substrate beds, effects of the sawdust substrate composition on the mushroom composition were examined. In Bunashimeji, Nameko and Enokitake mushrooms, the nitrogen content in their fruit body was not significantly related to that in the substrate. In Bunashimeji mushroom, concentration of minerals to the fruit body from the substrate was found in K (11.6 times), Na (9.73 times), Zn (1.81 times), Cd (4.30 times) and Hg (1.80 times), but a significant correlation between them was found only in Na. Fe from the substrate was not concentrated in the fruit body, however, a significant correlation between the fruit body and its substrate was observed. In Nameko mushroom, concentration of minerals to the fruit body from the substrate was found in K (5.9 times), Na (2.31 times), Mg (1.52 times), P (4.52 times), Cu (1.69 times), Zn (4.02 times) and Cd (3.23 times). Ca from substrate was not concentrated in the fruit body, however, a significant correlation between the fruit body and its substrate was observed. In Enokitake mushroom, concentration of minerals from the substrate to the fruit body was found in K (3.13 times), Zn (1.76 times), Cd (1.89 times) and Hg (1.88 times). Cu was not concentrated in the fruit body from the substrate, however a significant correlation between the fruit body and its substrate was observed.
