Effect of fungi and N-fixing bacteria on the solid state fermentation of rice straw
2004
Rane, S. | Puniya, A.K. | Singh, K. (National Diary Research Institute, Karnal (India))
SSF of rice straw was carried out for 7 days at 65% moisture content, with and without Phanerochaete chrysosporium P. ostreatus and Coprinus fimetarius (3 and 5%) in combination of Azospirellum brasilense and Azotobacter chroococcum (3 and 5% having 10(8)-10(9) cells/ml). After the fermentation period, the SSF were evaluated for different parameters. Rice straw had initial pH, CP content, DM and digestibility of 5.30, 3.80, 91.20 and 35.00% respectively. The values for different parameters changed with P. chrysosporium, P. ostreatus and C. fimetarius along with asymbiotic nitrogen-fixers (A. brasilense and A. chroococcum). Maximum DML (4.59%) was observed in straw with P. ostreatus with A. brasilense. The digestibility and CP content of straw after inoculation with P. ostreatus and A. brasilense was in range of 49.57 to 50.00 and 4.82 to 5.88% respectivily. The lowering of the ADL value from an initial value of 6.64 to 6.30% in straw affected to biodegradation process-taking place during the SSF. The highest PE observed in straw (2.18%) was due to the synergistic growth of P. ostreatus and A. brasilense during the SSF.
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