Research Article
Influence of Different Cultural Conditions on Photoproduction of Hydrogen by Rhodopseudomonas palustris KU003
Table 3
Effect of nitrogen sources on hydrogen production (mL/15 mL vessel) by R. palustris under anaerobic light.
| Nitrogen source | | Incubation period (in hrs) | | | | 24 | 48 | 72 | 96 | 120 | 144 | 166 | 192 |
| Potassium nitrate | R | — | — | | | | | | | G | — | — | | | | | | — | Sodium nitrate | R | — | — | | | | | — | — | G | | | | | | | | | Ammonium chloride | R | — | — | — | — | — | — | — | — | G | — | — | — | — | — | — | — | — | Urea | R | — | — | — | — | | — | — | — | G | — | — | | | | | | — | Thiourea | R | — | — | — | — | — | | | — | G | — | — | — | | | | | — | Glycine | R | | — | — | | | | — | — | G | — | — | | | | | | — | L-asparagine | R | — | — | | | | | — | — | G | — | | | | | | | | L-aspartic acid | R | — | — | | | | | | — | G | | | | | | | | | L-glutamic acid | R | — | — | | | | | | — | G | | | | | | | | | L-glutamine | R | — | — | — | | | | | — | G | — | | | | | | | | L-tyrosine | R | — | — | | | | | | — | G | | | | | | | | | L-cystine | R | — | — | | | | | | — | G | | | | | | | | | L-methionine | R | — | — | — | | | | — | — | G | — | — | | | | | | — | Nitrogen gas | R | — | — | — | — | | — | — | — | G | — | — | | | | | — | — |
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R: resting cells; G: growing cells; —: no hydrogen production.
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