[Growth of some fungi in irradiated palm oil empty bunches]
1997
Suwaji, E. | Hariyadi, R.S.
Four mushroom varieties namely Pleurotus ostreatus, P. flabellatus, Panus sp., and Schyzophyllum commune were grown on composted oil palm empty fruit bunch (EFB). Treatment of the experiment were consisted of EFB compost A and B. EFB compost A contained 0 percent chicken manure and 5 percent rice bran, while EFB compost B contained 0.4 percent chicken manure and 10 percent rice bran. EFB compost were irradiated using 60 Co at the dose of 20 kGy. Mushroom seed were inoculated in the plastic bag filled with EFB growth medium. The basidioma (fruit body) were harvested after 45 days incubation. A complementary experiment was also conducted to study the effect irradiation dose of 0, 5, 10, 20, 30, 40, and 50 kGy as lethal dose of model and bacteria grown on EFB with the density of 0.05 and 0.25 (weight/volume). The parameter of the experiment were the basidioma (fruit body) weight, biological efficiency, rendement, total fiber and protein on EFB after 3 months of biofermentation. The results of the experiment revealed that the weight of mushrooms were in the range of 25-63 g, and biological efficiency of 16.7-43 percent. Total fiber and total protein in EFB compost were in the range of 26-39 percent and 6.2-7.2 percent respectively. Total fiber were decreased 15-22 percent, while total protein were increased 3-4 percent in comparison with control. EFB compost treatment A and B, were not significantly different in term of yield mushroom and biological efficiency. The weight of P. ostreatus and Panus sp. was higher than P. flabellatus dan S. commune
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