Anaerobic biotransformation of furfural to furfuryl alcohol by a methanogenic archaebacterium |
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| Authors: | Raj Boopathy |
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| Institution: | 1. Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China;2. Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana 61801, United States;3. Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400044, China |
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| Abstract: | The metabolic conversion of furfural by a methanogenic Archaea, Methanococcus sp., strain B was studied. The organism was grown on H2–CO2 in the presence of various concentrations of furfural. Furfural at higher concentrations, namely, 25 and 30 mM inhibited growth of this organism. At concentrations 5, 10, and 15 mM, no inhibition was observed. Furfural was completely (100%) metabolized at the concentration of 15 or <15 mM in the cultures within five days of incubation. The end product observed during furfural metabolism was furfuryl alcohol. An almost stoichiometric quantity of furfuryl alcohol was produced. This biotransformation is likely to be of value in the detoxification of furfural and its ultimate conversion to methane and CO2 by the anaerobic process. |
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