and Cellulolytic Enhancing Polypeptides" section below. [0057] As the biomass may contain constituents other than lignin, cellulose and hemicellulose, hydrolysis and/or fermentation may be carried out in the presence of additional enzyme activities such as protease activity, amylase activity, carbohydrate- generating enzyme activity, and esterase activity such as lipase activity. [0058] Enzymatic