Production of Oyster Mushroom (Pleurotus ostreatus) on Olive Cake Agro Waste

Khlood Ananbeh, Ahmad Almomany

الملخص


An experiment was conducted to examine the ability of Oyster mushroom to grow on olive cake mixed with wheat straw. Six treatments were examined including the control, which contained 90% wheat straw with the fixed additives (wheat bran and gypsum). After inoculation, and incubation, transparent plastic bags were used for cultivation. Three days were needed for pinheads to start appearing, and then 3-7 days were needed for the maturity of the basidiomete. Several growth parameters were examined including primordial induction and fructification period, earliness, average weight of individual basidiomata, average yield for each treatment, diameter of the pileus, Biological Efficiency (BE%), in addition proximate analysis for protein, crude fat, crude fiber, ash, carbohydrates, minerals and moisture were performed. It was found that up to 30% olive cake could be added to the growing medium with satisfactory results. The best performance was obtained by adding 30% olive cake to the basal growing medium which gave the highest yield (400g/500g dry substrate), average weight (21.5g/cap), average cap diameter (7.05cm/cap), and BE% (80%). Carbohydrate and protein content were high in Pleurotus basidiomete, fiber was high too but not as carbohydrate and protein. Ash contents were moderate, while fat content was low.
For mineral contents in mushrooms the trend was the same in all treatments. Both macro elements K and P were high in their concentrations when compared with other minerals in all treatments, Sodium was moderate in its concentrations, while both Mg and Ca were found at low concentrations but Mg was relatively higher than Ca. For microelements, both Fe and Zn were relatively high compared with other minerals like Cu and Mn, which were found at very low concentrations.

الكلمات المفتاحية


Mushroom, Pleurotus ostreatus, basidiomata, biological efficiency, olive cake, cultivation

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