six endoglucanases ( endo i ; ii ; iii ; iv ; v ; vi ) , three exoglucanases ( exo i ; ii ; iii ) and a beta-glucosidase ( beta-gluc i ) were isolated from a commercial cellulase preparation derived from trichoderma viride , using gel filtration on bio-gel , anion exchange on deae-bio-gel a , cation exchange on se-sephadex and affinity chromatography on crystalline cellulose .
C0021966
i
C0003075
anion