Research Article

Influence of Different Cultural Conditions on Photoproduction of Hydrogen by Rhodopseudomonas palustris KU003

Table 4

Effect of carbon sources on hydrogen production (mL/15 mL vessel) by R. palustris under anaerobic dark.

Carbon sourceIncubation period (in hrs)
24487296120144166192

LactateR 0 . 2 4 ± 0 . 0 2 0 . 4 8 ± 0 . 1 0 0 . 6 6 ± 0 . 1 4 0 . 3 8 ± 0 . 1 8
G 0 . 3 8 ± 0 . 1 6 0 . 6 8 ± 0 . 1 8 1 . 2 4 ± 0 . 1 2 0 . 8 4 ± 0 . 2 8 0 . 4 4 ± 0 . 1 2 0 . 3 2 ± 0 . 1 8
MalateR 0 . 4 2 ± 0 . 0 6 0 . 6 8 ± 0 . 3 2 0 . 9 8 ± 0 . 0 2 0 . 3 6 ± 0 . 1 6
G 0 . 3 6 ± 0 . 1 4 0 . 5 8 ± 0 . 1 4 0 . 9 8 ± 0 . 1 4 1 . 2 6 ± 0 . 2 4 1 . 6 8 ± 0 . 2 0 1 . 3 4 ± 0 . 3 2 0 . 8 4 ± 0 . 1 4 0 . 4 0 ± 0 . 1 8
SuccinateR 0 . 2 6 ± 0 . 1 8 0 . 5 4 ± 0 . 1 2 0 . 3 6 ± 0 . 0 2
G 0 . 2 6 ± 0 . 0 6 0 . 5 2 ± 0 . 1 2 0 . 7 8 ± 0 . 0 4 1 . 1 0 ± 0 . 2 8 0 . 8 2 ± 0 . 1 8 0 . 6 8 ± 0 . 0 6 0 . 3 8 ± 0 . 2 0
FructoseR 0 . 2 2 ± 0 . 0 8
G 0 . 4 6 ± 0 . 1 4 0 . 5 6 ± 0 . 2 0 0 . 7 8 ± 0 . 2 8 0 . 3 8 ± 0 . 1 2 0 . 2 8 ± 0 . 0 8
GlucoseR 0 . 2 8 ± 0 . 0 6
G 0 . 3 8 ± 0 . 1 0 0 . 5 6 ± 0 . 1 4 0 . 2 6 ± 0 . 0 4
LactoseR 0 . 4 8 ± 0 . 0 8 0 . 7 4 ± 0 . 1 2 0 . 3 6 ± 0 . 0 3
G 0 . 3 4 ± 0 . 1 6 0 . 6 8 ± 0 . 0 6 1 . 0 4 ± 0 . 2 8 1 . 4 8 ± 0 . 1 6 0 . 9 2 ± 0 . 1 4 0 . 7 6 ± 0 . 2 8 0 . 5 4 ± 0 . 1 8
MaltoseR 0 . 3 8 ± 0 . 1 0
G 0 . 2 2 ± 0 . 1 4 0 . 4 4 ± 0 . 3 2 0 . 9 4 ± 0 . 1 4 0 . 5 6 ± 0 . 1 0 0 . 3 2 ± 0 . 1 8
SucroseR 0 . 2 4 ± 0 . 1 2 0 . 4 8 ± 0 . 0 6 0 . 2 8 ± 0 . 1 8
G 0 . 3 4 ± 0 . 0 2 0 . 6 6 ± 0 . 1 8 1 . 1 8 ± 0 . 2 4 0 . 7 8 ± 0 . 3 2 0 . 4 6 ± 0 . 1 2 0 . 2 6 ± 0 . 1 8
MannitolR 0 . 4 0 ± 0 . 0 4
G 0 . 4 2 ± 0 . 0 6 0 . 6 4 ± 0 . 1 6 0 . 3 8 ± 0 . 0 8
SorbitolR 0 . 3 6 ± 0 . 2 2 0 . 6 8 ± 0 . 2 0 0 . 4 2 ± 0 . 1 2 0 . 2 6 ± 0 . 0 6
G 0 . 3 2 ± 0 . 0 2 0 . 5 4 ± 0 . 0 8 0 . 8 6 ± 0 . 1 4 0 . 4 0 ± 0 . 0 8 0 . 2 4 ± 0 . 0 4

R: resting cells; G: growing cells; —: no hydrogen production.