uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Enhanced hydrogen production by optimization of immobilized cells of the green alga Tetraspora sp CU2551 grown under anaerobic condition
Mahidol Univ, Fac Trop Med, Dept Social & Environm Med, Bangkok 10400, Thailand.
King Mongkuts Inst Technol Ladkrabang, Bioenergy Res Unit, Bangkok 10520, Thailand;King Mongkuts Inst Technol Ladkrabang, Fac Sci, Dept Biol, Bangkok 10520, Thailand.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström, Molecular Biomimetics.
King Mongkuts Inst Technol Ladkrabang, Bioenergy Res Unit, Bangkok 10520, Thailand;King Mongkuts Inst Technol Ladkrabang, Fac Sci, Dept Biol, Bangkok 10520, Thailand.
2018 (English)In: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 111, p. 88-95Article in journal (Refereed) Published
Abstract [en]

The green alga Tetraspora sp. CU2551 has previously been identified and characterized as a photosynthetic microorganism with high potential for H-2 production. In the present study, cells of Tetraspora CU2551 were entrapped and immobilized in an alginate matrix with the aim to analyze the effect of cell stacking and a reduced exposure of O-2 to the cells. The results showed that the most favorable immobilization conditions were 4% (w/v) of final alginate concentration and a cell concentration of 0.125 mg cell dry wt/mL alginate with a bead diameter of 2.80-3.35 mm. The H-2 production yields increased when the immobilized cells were incubated in S-deprived medium and this could be repeated at least for 3 production times. Maximal total H-2 production reached 7.68 +/- 0.88 mL H-2/25 mL medium, corresponding to a rate of 1182.45 +/- 24.40 nmol H-2/h/mg DW. This production is about 6 times higher compared to by cells in suspension, 2-10 times higher when compared to by other green algae, and 10-50 times higher when comparing with cyanobacteria. Based on our observations, immobilized cells of Tetraspora CU2551 is considered a very promising biological system for significant photobiological H-2 production by a photosynthetic microorganism.

Place, publisher, year, edition, pages
PERGAMON-ELSEVIER SCIENCE LTD , 2018. Vol. 111, p. 88-95
Keywords [en]
Alginate, Immobilization, Biohydrogen production, Green algae, Tetraspora sp CU2551
National Category
Biochemistry and Molecular Biology
Identifiers
URN: urn:nbn:se:uu:diva-352703DOI: 10.1016/j.biombioe.2018.01.005ISI: 000426994100011OAI: oai:DiVA.org:uu-352703DiVA, id: diva2:1215415
Funder
NordForsk, 82845Available from: 2018-06-08 Created: 2018-06-08 Last updated: 2018-06-08Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Lindblad, Peter

Search in DiVA

By author/editor
Lindblad, Peter
By organisation
Molecular Biomimetics
In the same journal
Biomass and Bioenergy
Biochemistry and Molecular Biology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 23 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf