Objective:To isolate and identify the alkali tolerant yeast strains from an industrial sewage farm in Wenquan county of Xinjiang, China.

The excellent yeast strains could be used for bread baking, the development of non-alcohol beverage, and the treatment of industrial waste water etc.

Genetic engineers have spent 20 years trying to create a type of yeast that can ferment xylose on an industrial scale.