Table 4.

Hydrogen and lactic acid production rate (mmol L⁻¹ day⁻¹) in batch experiments with Sargassum sp. biomass in the presence and absence of zeolite.

Z/I (g g−1)	Production rate (mmol L−1 day−1)
	Hydrogen	Lactic acid
0.26	3.41 ± 0.08	6.20 ± 0.04
0.13	4.19 ± 0.47	1.51 ± 0.44
0.065	3.66 ± 0.43	3.10 ± 0.03
0 (control)	3.21 ± 0.30	2.63 ± 0.18