Monitoring growth of the methanogenic archaea Methanobacterium formicicum using an electronic nose

Abstract

Growth of the methanogenic archaea, Methanobacterium formicicum, in pure culture was monitored by analysing samples from the gas phase with an array of chemical gas sensors (an 'electronic nose'). Analyses of the methane and protein formation rates were used as independent parameters of growth, and the data obtained from the electronic nose were evaluated using principal component analysis (PCA). We found that different growth phases can be distinguished with the electronic nose followed by PCA evaluation. The fast response of the sensors in combination with the high correlations with other parameters measuring growth show that the electronic nose can be a useful tool to rapidly determine methanogenic growth.

Keywords

chemical gas sensors; electronic nose; Methanobacterium formicicum; methanogenic growth

Published in

Biotechnology Letters
2001, volume: 23, number: 4, pages: 241-248
Publisher: KLUWER ACADEMIC PUBL

SLU Authors

• Sundh, Ingvar

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Nordberg, Åke

  • Swedish Institute of Agricultural and Environmental Engineering (JTI)

• Schnürer, Anna

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Bioprocess Technology

Publication identifier

• DOI: https://doi.org/10.1023/A:1005643606640

Permanent link to this page (URI)

https://res.slu.se/id/publ/86833