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The production of 2,3-butanediol(2,3-BD) by fermentation has been considered as a potential source of fuels [1,2] or chemical feedstock [3].However,the high boiling point (180~184℃) and high hydrophilie property make it difficult to separate 2,3-BD from complicated fermentation broths,thus the recovery becomes one of the keys to realize the industrial production for 2,3-butanediol [4].