Characterization of photobiological hydrogen production by marine green algae platymonas subcordiformis

Chunqiu Ran, Wei Zhang, Xingju Yu, Meifang Jin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The hydrogenase activity of the marine green algae Platymonas subcordiformis at the late growth phase was the highest. The characterizations of photobiological hydrogen production for algae by sulfur element deprived from medium and treated with uncoupler CCCP were investigated. The sulfur element couldn't effectively regulate PSII photochemical activity, therefore it couldn't produce any hydrogen by sulfur-deprived during direct light illumination because hydrogenase couldn't expression. When algae treated with 5, 10, 15 and 20 μmol/L CCCP after 32 hours of dark anaerobic incubation of 32 hours, the PSII photochemical activity was obviously repressed, and the sealed system hold anaerobic condition, which could photoproduce 21.8, 23.0, 22.5 and 16.0 μmol/mg Chl, respectively. Besides, appropriate concentration CCCP could regulate algae hydrogen production under direct light illumination, but the quantity and rate of hydrogen production were lower than that of the former.

Original languageEnglish
Pages (from-to)944-949
Number of pages6
JournalTaiyangneng Xuebao/Acta Energiae Solaris Sinica
Volume29
Issue number8
Publication statusPublished - 1 Aug 2008
Externally publishedYes

Keywords

  • CCCP
  • Hydrogen
  • Marine green algae
  • Photochemical activity
  • Sulfur-deprived

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