 The future bioeconomy will rely heavily on lignocellulosic biomass, which is difficult to process due to its recalcitrant nature. Enzymatic conversion of polysaccharides in this biomass, specifically cellulose, is a key technology for future bio refineries and is currently being intensely researched. Recent developments in enzyme technology have led to the discovery of new types of enzymes, such as CBM-33 and GH-61, which catalyze oxidative cleavage of polysaccharides, increasing the efficiency of classical hydrolytic enzymes, cellulases, by acting on the surfaces of insoluble substrates. This article was authored by Hornsven, Vatikolstad-Gustav, Westerengdjage, and others.