Acclimated methanogens

Index Entries Vitamin B12 methane acclimated methanogens trace metal ions rock wool. 

Beydilli MI, Pavlostathis SG (2005) Decolorization kinetics of the azo dye Reactive Red 2 under methanogenic conditions. Effect of long-term culture acclimation. Biodegradation... 

Soil Under aerobic conditions, indigenous microbes in contaminated soil produced pentachlorocyclohexane. However, under methanogenic conditions, a-BHC was converted to chlorobenzene, 3,5-dichlorophenol, and the tentatively identified compound 2,4,5-trichlorophenol (Bachmann et al., 1988). Manonmani et al. (2000) isolated a microbial consortium from sewage and soil that could completely mineralize a-BHC in 14 d at 30 °C. The acclimated consortium could degrade up to 100 mg/L of a-BHC within 72 h at a degradation rate of 58 mg/L-day. 

To ensure no oxygen was present, the methanogenic enrichment culture was flushed with oxygen-free gas for 20 min before incubating in the dark at 35 °C. After a 13-d acclimation period, the amount of methane and carbon dioxide produced in 14 d was 63% of theoretical. 

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