Production of 1,3-propanediol, 2,3-butanediol and ethanol by a newly isolated Klebsiella oxytoca strain growing on biodiesel-derived glycerol based media

► Satisfactory 1,3-propanediol production (up to 50.1 g/L) by Klebsiella oxytoca on raw glycerol. ► Severe impact of the anaerobiosis strategy on the distribution of metabolic products. ► Satisfactory 2,3-butenediol production (up to 32.1 g/L) by Klebsiella oxytoca on glucose-based media. ► Very high production of ethanol (up to 25.2 g/L) from raw glycerol by Klebsiella oxytoca. ► Unsterilized 1,3-propanediol production in batch bioreactor cultures.