Production of biofuels from pretreated microalgae biomass by anaerobic fermentation with immobilized Clostridium acetobutylicum cells

► Various microalgal cultures were used for transformation into different biofuels. ► The most efficient technique of biomass pretreatment was selected. ► Usage of immobilized Clostridium cells for algal biomass fermentation was shown. ► The best results were achieved using pretreated biomass of Nannochloropsis sp.