The isolates that produced exceptionally high ethyl alcohol were T. globosa YKM032 (6.03%v/v), I. orientalis YMK036 (6.01%v/v), P. burtonii YKM034 (6.00%v/v) and P. burtonii YL048 (5.99%v/v). The only one isolate of S. cerevisiae produced ethyl alcohol at 4.68%v/v.