ABSTRACT
This purpose of this experiment was to characterize wild strains of yeasts from different sources from north eastern Nigeria that have unique traits that will be applicable in the bioethanol production industry. The yeast characterization of these yeast strains were based on the yeast strain ability to grow at different temperature conditions, their ability to grow in various pH condition and their ability ferment different sugars. 10 yeast strains were tested. These yeast strains were isolated from coconut, kunu (millet drink), sugar cane juice among others.