The increase in ethanol productivity by the delignified cellulosic (DC) material, prepared from sawdust after lignin removal, is reported. The DC material increased ethanol productivity by 120%. Final ethanol concentration of 113 ml C2H5OH/l was obtained in the presence of DC material compared with 84 ml C2H5OH/l in its absence when the initial sugar concentration of molasses was 198 g/l.