Figure 2.
(A) The changes of enzyme activities and (B) the inhibition effect of lignins on the enzymatic hydrolysis of various celluloses. Samples without lignin served as control. ACL, Arabidopsis Col-0 lignin; AL, aspen lignin; ASL, Arabidopsis SALK mutant 063792 lignin; BG, β-glucosidase; CBH, cellobiohydrolase; CL, corn stover lignin; EG, endoglucanase; KL, kenaf lignin; PASC, phosphoric acid-swollen cellulose; PL, pine lignin.