Biomass to fuels via microbial transformations.
The conversion of biomass to fuels is advancing on two fronts: first, to enhance the usability of biomass and second, to generate the best fuel molecule(s). Lignin generally presents a barrier to biomass utilization; this problem may be circumvented by the genetic alteration of lignin-producing plants. Plant cellulosic material will need to be utilized more efficiently, requiring a greater knowledge of the multiprotein complex, the cellulosome. Many biofuel types are being considered: alcohols, esters, ethers, and hydrocarbons. Intrinsic alcohol toxicity to cells may impose limitations on ethanol and n-butanol production. Biodiesel, or fatty acid esters, can now be synthesized via recombinant Escherichia coli and may offer an improvement over alcohol fermentations. Biopetroleum (hydrocarbons) is being considered as an alternative biofuel.
Wackett
Lawrence P
LP
Department of Biochemistry, Molecular Biology and Biophysics and BioTechnology Institute, University of Minnesota, St. Paul, MN 551088 USA. wacke003@umn.edu
D000438:Alcohols / Q000378:metabolism; D001674:Bioelectric Energy Sources; D018533:Biomass; D001711:Biotransformation; D004952:Esters / Q000378:metabolism; D006838:Hydrocarbons / Q000378:metabolism
D000438:Alcohols; D004952:Esters; D006838:Hydrocarbons