Synergy with Xylan Removal and Cellulases

The synergy between cellulases, hemicellulases, and accessory enzymes has been explored in some depth but is still not fully understood. Studies utilizing purified cellulases and hemicellulases have shown that when some of the hemicellulose component in lignocellulose remains intact following pretreatment, the enzymatic hydrolysis of the remaining xylan and substituted xylan moieties improves cellulose hydrolysis by cellulases (Selig et al., 2008, 2009). This improvement in cellulose 

Our understanding of the interaction of biomass-degrading enzymes on lignocel-lulosic biomass has advanced considerably in the last decade. Nonetheless, further work in this area will help point the way toward optimized systems of enzymes tailored for specific feedstocks and pretreatment methods, as further discussed in section 4.5. 

3 ENZYMATIC HYDROLYSIS AT HIGH CONCENTRATIONS OF BIOMASS SOLIDS 

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