Considering of the cellulosic biofuel,there is an increasing number of commercial cellulase preparations on market.Because of the different substrate dependent of commercial cellulases,their hydrolytic performances are totally different.In order to explore the hydrolytic behavior of commercial cellulase,the features of Cellic CTec2( Ctec 2) on hydrolyzing atmospheric glycerol pretreated wheat straw were studied by measuring hydrolysis efficiency.The results showed that hydrolysis efficiency of CTect2 was hi...