Fig. 5

Enzymatic hydrolysis of steam-pretreated spruce. Release of A glucose, B xylose, and C mannose after 48 h of hydrolysis with Celluclast® 1.5 L, Novozym® 188, and Ultraflo®. The grey scale used in the bar plots denotes the corresponding increase in the severity of pretreatment. Data represent the mean ± standard deviation of triplicate measurements