Production of Oyster Mushroom (Pleurotus ostreatus) on Tomato Tuff Agro waste

Kholoud M. Ananbeh, Ahmad M. Al-Momany

الملخص


An experiment was conducted to examine the ability of Oyster mushroom (Pleurotus ostreatus) to grow on tomato tuff agro waste mixed with wheat straw. Six treatments containing different concentrations from tomato tuff from 10-50% in the growing medium were examined including the control, which contained only 90% wheat straw with the fixed additives (wheat bran 5% and gypsum 5 %). Substrates were placed in transparent plastic bags after inoculation with spawn at a rate of 5% of the dry weight and incubation at 20-25Cº for 10 days. Three days were needed for pinheads to start appearing, and then between 3-7 days were needed for the maturity of the basidiomete. Several growth parameters were studied including incubation period, primordial induction and fructification period, earliness, average weight of individual basidiomata, average yield for each treatment, diameter of the pileus, Biological Efficiency (BE%). Proximate analysis for protein, crude fat, crude fiber, ash, carbohydrates, minerals and moisture content were performed. It was found that adding up to 30% tomato tuff to the growing substrate gave satisfactory results (the yield 417-478g/bag, average cap weight 21-29g/cap, average cap diameter 9.2-10cm/cap, and BE% 84-96%). Carbohydrate and protein contents were the highest in Pleurotus basidiomete in tomato tuff 3 and tomato tuff 2 treatments respectively. The lowest fiber content was in tomato tuff 2. Ash content was similar in both tomato tuff 2 and 3, while fat content was positively correlated with tomato tuff percentage in the growing substrate.

For mineral contents in mushrooms the trend was not the same in all treatments. Both macro elements K and P and Na were negatively correlated with tomato tuff percentage except for tomato tuff 2 in P content. Mg and Fe contents were positively correlated with tomato tuff percentage except for tomato tuff 4 in Fe content. The highest Cu and Mn contents were found in tomato tuff 4, while the same treatment contained the least Ca and Fe contents. Zn content was the highest in tomato tuff 3 and the lowest (0.91ppm) was in tomato tuff 2 treatment.

الكلمات المفتاحية


Mushroom, Pleurotus ostreatus, Basidiomata, Biological Efficiency, Tomato Tuff, Cultivation, Agro Waste

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