Femi-Ola, T. O., Daniels, T. and Olajiga, O. F.
Five different fungal isolates, Rhizopus stolonifer, Rhizopus oligosporus, Mucor racemosus, Mucor rouxii and Aspergillus niger were selected for growth observation on substrates formulated from brewer�¢���� spent grains, while commercial yeast extract agar served as the control. Dry biomasses were determined by diameter measurement. The fungi generally showed best growth in substrate combinations of spent grains and yeast extract. Aspergillus niger showed the highest extension growth of 380 mm at 144 hrs in 0.9 % w/v of spent grains and yeast extract (SG.YE) in the ratio 1:1. The biomass production by each organism peaked at the 96th hour.
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