摘要：AbstractProduction of bioethanol from corn straw by cellulolytic yeasts immobilized onMucuna urenswas investigated. Yeast isolates were screened for amylase, cellulase and ethanol production. Effect of bead size, inoculum load, substrate concentration, pH and bead reusability were studied. Bioethanol production was optimum with 4mm bead size, 10% substrate concentration, pH 4.5 and 10% inoculum load. Maximum ethanol production (55.27g/L) was achieved by immobilizedSaccharomyces diaststicus. Immobilized yeast cells were re-used repeatedly without obvious loss of activity. This study showed that yeasts immobilized onMucuna urenscan effectively utilize lignocellulolytic materials and produce ethanol from it.
