T. Sopandi, A. Wardah
This study sought to explore potential of mono and co-culture fermentation of S.cerevisiae with C. tropicalis, Z. mobilis and P. resticulosum for bioethanol production from stream rice husk medium. Batch fermentation was conducted in a waste rice husk hydrolysate basal medium with 4 g/L urea, 3 g/L NaNO3, 3 g/L NH4NO3, 1 g/L KH3PO4 and 0.7 g/L MgSO4·7H2O supplemented and 3 days (30°C, 60-70% relative humidity, dark, 150 rpm agitation) incubation. Maximum ethanol production (2.125±0,259 %/L) was gained from co-culture S.cerevisiae, C. tropicalis with efficiency fermentation 89.25±10.95%. Co-culture S.cerevisiae, C. tropicalis have ability to generate and convert fermentable sugars from a waste stream rice husk to ethanol. Co-culture S. cerevisiae, C. tropicalis demonstrated high potential and such application provides a process for agricultural waste stream resource reuse for production of ethanol in increasing demand. © 2015 Global Science Publications.
Department of Biology, Faculty of Mathematical and Biological Science, University of PGRI Adi Buana, Indonesia Jl. Dukuh Menanggal XII, Surabaya, Indonesia; Faculty of Economy, University of 17 Agustus 1945, Surabaya, Indonesia
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