Abstract
The production of ethanol from low cost lignocellulosic materials such as crop waste and horticulture waste has considerable promise as a future source of liquid transport fuel. In the present study the pomace left after juice extraction was collected from HPMC, Parwanoo, H.P and used as a substrate for bioethanol production. Different microbial strains viz. Saccharomyces cerevisiae MTCC 173 (ethanol production), Aspergillus foetidus MTCC 151 (pectinase) and Fusarium oxysporum MTCC 1755 (cellulase) were used individually as well as in consortia for ethanol production from apple pomace in solid state fermentation (SSF) systems. With S. cerevisiae MTCC 173 (1% inoculum) 8.44% (v/w) ethanol was recovered after 72h of incubation at 30°C with Bucchi rotary vacuum evaporator and sugar concentration decreased to 0.25% and on the other hand, with cocultures i.e. S. cerevisiae MTCC 173, A. Foetidus MTCC 151, F. oxysporum MTCC 1755 the ethanol increased to 16.09% (v/w) and sugar concentration further decreased to 0.15% after 72 h incubation at 30°C.
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