Ecology and application of haloalkaliphilic anaerobic microbial communities.

João A B Sousa, Dimitry Y Sorokin, Martijn F M Bijmans, Caroline M Plugge, Alfons J M Stams

Journal: Applied microbiology and biotechnology 2016;99(22):9331-6

PMID: 26359181

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Abstract

Haloalkaliphilic microorganisms that grow optimally at high-pH and high-salinity conditions can be found in natural environments such as soda lakes. These globally spread lakes harbour interesting anaerobic microorganisms that have the potential of being applied in existing technologies or create new opportunities. In this review, we discuss the potential application of haloalkaliphilic anaerobic microbial communities in the fermentation of lignocellulosic feedstocks material subjected to an alkaline pre-treatment, methane production and sulfur removal technology. Also, the general advantages of operation at haloalkaline conditions, such as low volatile fatty acid and sulfide toxicity, are addressed. Finally, an outlook into the main challenges like ammonia toxicity and lack of aggregation is provided.

Address: Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB, Wageningen, The Netherlands. [email protected].; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, the Netherlands. [email protected].; Winogradsky Institute of Microbiology, Research Centre of Biotechnology, Russian Academy of Sciences, Moscow, Russia. [email protected].; Department of Biotechnology, Delft University of Technology, 2628 BC, Delft, the Netherlands. [email protected].; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, the Netherlands. [email protected].; Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB, Wageningen, The Netherlands. [email protected].; Wetsus, European Centre of Excellence for Sustainable Water Technology, Oostergoweg 9, 8911 MA, Leeuwarden, the Netherlands. [email protected].; Laboratory of Microbiology, Wageningen University, Dreijenplein 10, 6703 HB, Wageningen, The Netherlands. [email protected].; Department of Biological Engineering, University of Minho, Braga, Portugal. [email protected].

DOI: 10.1007/s00253-015-6937-y

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MeSH Terms: Ammonia, Anaerobiosis, Archaea, Bacteria, Anaerobic, Fermentation, Hydrogen-Ion Concentration, Lakes, Lignin, Methane, Methanomicrobiaceae, Microbial Consortia, Salinity, Sulfur, Water Microbiology