Research Article

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

Table 2

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

Carbon sourceIncubation period (in hrs)
24487296120144166192

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

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