The identification of key proteins in a group of heat-loving
bacteria by researchers at the Department of Energy’s BioEnergy Science Center
could help light a fire under next-generation biofuel production.
Scientists have long been on the hunt for cost-effective
ways to break down complex plant material such as switchgrass in order to access
sugars that are fermented to make biofuels. Conventional processes involve the
addition of commercially produced enzymes to break down the cellulose. BESC
scientists are exploring alternative options, including the use of certain
bacteria that are naturally capable of deconstructing plant biomass in their environment.
To better understand the mechanisms behind this microbial
ability, a team of researchers from North Carolina State University, Oak Ridge
National Laboratory and the University of Georgia analyzed the genomes of eight
species of bacteria from the genus Caldicellulosiruptor.
These bacterial species, found in globally diverse sites from New Zealand to
Iceland to Russia, can degrade plant biomass at extremely high temperatures.
ORNL Press Release; http://www.ornl.gov/info/press_releases/get_press_release.cfm?ReleaseNumber=mr20120702-00
Ethanol Producer Magazine Interview at; http://www.ethanolproducer.com/articles/8920/heat-loving-bacteria-could-lead-to-next-generation-microbe
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