Table 3.

Inhibition of cellulases on ¹⁴C-cellulose substrates by IOS and cellobiose

	IC50 (mM)
Enzyme	IOS	Cellobiosea
TrCel7Ab	0.0082 ± 0.0018c	0.68 ± 0.24
	0.0126 ± 0.0026d
TrCel6Ab	0.076 ± 0.034c	16 ± 0.5
	0.093 ± 0.033d
TrCel7Be	≈ 0.5f	168 ± 2

^aData for 35°C from [26].

^bStudied on ¹⁴C-BC as a substrate at 35°C.

^cAnalyzed using the concentrations of IOS free from cellulose.

^dAnalyzed using the total concentrations of IOS.

^eStudied on ¹⁴C-amorphous cellulose as a substrate at 35°C.

^fBecause of the long extrapolation (Figure 7D), this is only an approximate value and must be treated with caution.