Science Target Conference Systems, Ajman 4th International Environment Conference 2016

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UTILIZATION OF AGRICULTURAL AND INDUSTRIAL WASTE FOR THE PROPAGATION OF EDIBLE MUSHROOM PLEUROTUS OSTREATUS
Saba Sarfraz

Last modified: 2016-01-05

Abstract


In the present study, 5 waste samples i.e. Wheat Straw (W.S), Rice Husk (R.H), Sugarcane Bagasse (S.B), Biogas Slurry Manure (B.S.M) and Sludge (S) of pulp and paper industry were used alone and in combination of two (W.S + R.H,  W.S + S.B,  R.H + S.B,  S + W.S,  S + R.H,  S + S.B,  S + B.S.M,  B.S.M + W.S, B.S.M + R.H, B.S.M + S.B) for the propagation of Pleurotus ostreatus. Sorghum spawn was prepared and added (5%) in the substrate bags with the help of double layer spawning technique. Treated bags were stored at 20 oC in an incubator to complete the ramification period. For fruiting and harvesting, substrates bags were given 65-85 % humidity at a temperature range of 20-25 oC in a separate room. Spawn growth rate, mycelial density, number of days for primordial initiation and maturation of fruiting bodies, time period between flushes, number of flushes and fruiting bodies per substrate bag, morphological characteristics, yield, biological efficiency, biomass loss, proximate analysis (protein, fat, total mineral content and moisture content), chemical toxicity test and aflatoxins were studied. The results revealed that wheat straw in alone samples and combination of W.S+S, W.S+B.S.M and S+B.S.M in collective samples showed higher biological efficiency, yield and biomass loss. Whereas, all the cultivated mushrooms were found to be non-toxic and the selected waste types helped to convert the wasted biomass into edible protein.