The highest concentration of biobutanol (7.27 g/L) was obtained
from the fermentation medium containing 2% (w/v) fructose, with a total acetoneebutanoleethanol
(ABE) concentration of 10.23 g/L. The ability of isolate YM1 to produce biobutanol from various carbon
sources and agro-wastes indicates the promise of the use of this isolate for the production of biobutanol,
a renewable energy resource, from readily available renewable feedstocks.