Applied Microbiology and Biotechnology

, Volume 48, Issue 3, pp 385–388

Mixotrophic growth of two thermophilic Methanosarcina strains, Methanosarcina thermophila TM-1 and Methanosarcina sp. SO-2P, on methanol and hydrogen/carbon dioxide

Authors

  • Z. Mladenovska
    • The Anaerobic Microbiology/Biotechnology Research Group, Department of Environmental Science and Engineering, Building 115, The Technical University of Denmark, DK-2800 Lyngby, Denmark Tel.: +45-45251566 Fax: +45-45932850 e-mail: bka@imt.dtu.dk
  • B. K. Ahring
    • The Anaerobic Microbiology/Biotechnology Research Group, Department of Environmental Science and Engineering, Building 115, The Technical University of Denmark, DK-2800 Lyngby, Denmark Tel.: +45-45251566 Fax: +45-45932850 e-mail: bka@imt.dtu.dk
ORIGINAL PAPER

DOI: 10.1007/s002530051067

Cite this article as:
Mladenovska, Z. & Ahring, B. Appl Microbiol Biotechnol (1997) 48: 385. doi:10.1007/s002530051067

Abstract

Two thermophilic strains, Methanosarcina thermophila TM-1 and Methanosarcina sp. SO-2P, were capable of mixotrophic growth on methanol and H2/CO2. Activated carbon was, however, found to be necessary to support good growth. Both strains used hydrogen and methanol simultaneously. When methanol was depleted, hydrogen utilization continued and methane was further produced with concurrent cell growth. UV epifluorescence microscopy revealed that aggregates of both strains exhibited a bright red fluorescence besides the usual blue-green fluorescence.

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© Springer-Verlag Berlin Heidelberg 1997