Eleven isolates of this species produced 2.01-3.00 %v/v whereas 3 isolates produced more than 3.00%v/v, i.e., YMK001 (3.66%v/v), YMK019 (3.43%v/v) and YMK026 (3.04%v/v). Most of the remaining yeast species produced ethyl alcohol less than 4%v/v and 2 isolates, i.e., R . philyla and T. asahii could not ferment.