Table 10: Maximum enzyme cost to have payback lower than 10 years for each case studied.

Enzyme concentration*
2 FPU/g5 FPU/g10 FPU/g
(US$/kg enzyme)

Case 62n
Case 62n
Case 1042
Case L1042
Case 42n

 *Enzyme cost analyzed were of 2, 4, 6, and 10 US$/kg enzyme; enzyme concentration was expressed only regarding the cellulase load but β-glicosidase load also varies in accordance with the values described in Table 7.
n: none of the studied values.