Biodegradation of wheat straw achieved during Pleurotus ostreatus mushroom production
1996
Adamovic, M. (PKB INI Agroekonomik, Belgrade - Padinska Skela (Yugoslavia)) | Grubic, G. | Milenkovic, I. | Jovanovic, R. | Protic, R. | Sretenovic, Lj. | Stoicevic, Lj.
The impact of Pleurotus ostreatus mushroom enzymes on wheat straw degradation was investigated in laboratory conditions. Chopped and pressured pasteurised straw with 24 dry matter was seeded with a mushroom mycelium. Chemical analyses of the straw were done after 15, 30, 45, 60, 90 and 120 days upon seeding. The mushroom collection was done four times. After seedling, crude fibre, NDF and ADF decreased from 46.93 to 32.40, from 82.42 to 48.53 and from 56.12 to 41.17, respectively. A similar tendency was found for hemicellulose and cellulose, while it was not so expressed in lignin. The ash content increased from 6.26 to 9.78. The obtained results show that a substantial part of straw dry matter was degraded by the mushroom enzymes. The effects were most notable on the lignocellulosic complex which enabled a successful use of the straw as a substrate for mushroom growth. These changes provide a better utilization of the straw in domestic ruminant feeding.
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