Récent 32+ Pretreatment Of Biomass. • some kind of action before the treatment… • likely to be different for different raw materials and. Pretreatment of biomass provides general information, basic data, and knowledge on one of the most promising renewable energy sources—biomass for their pretreatment—which is one of the most. Pretreatment is a process in which the biomass is made ready for microbial attack. Our mission is to transform lignocellulose into intermediate streams with low toxicity, high sugar concentrations, and utilizable lignin for biological and.