Table 3.

Hydrogen yields (mL/g TS_initial) of all schemes applied in this study for GL pretreated with H₂SO₄ and NaOH, 10 g/100 g TS. SSF: simultaneous saccharification and fermentation, SHF: separate hydrolysis and fermentation.

Whole Biomass Slurry				Separated Fractions
	No Enzymes a	SSF b	SHF c	Liquid d	Solid-SSF d	Sum
H2SO4	19.2 ± 0.3	230.7 ± 1.6	154.5 ± 18.8 c	159.1 ± 12.8	111.1 ± 9.8	270.2
NaOH	11.2 ± 0.7	170.0 ± 10.7	100.6 ± 6.6 c	85.7 ± 12.7	85.0 ± 6.7	170.7
Untreated	11.6 ± 1.2	81.8 ± 2.2	65.3 ± 5.4 c	n.t. e	n.t. e

^a Concept Figure 2b, ^b Concept Figure 2a, ^c Concept Figure 2c, ^d Concept Figure 2d, ^e n.t.: not tested.