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Title:   Author  item
                                            Vogel, Kennethitem
                                            Jung, Hans Joachimitem
                                            Mitchell, Robert

                                                         - *Rob*item
                                            Lamb, Joannitem
                                            Sarath, Gautam
  Submitted to: Biotechnology for Fuels and Chemicals Symposium Proceedings
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 4/16/2003
                                    Publication  Date: 5/9/2004
                                    Citation: Vogel, K.P., Jung, H.G., Mitchell, R., Lamb, J.F., Sarath, G. 2004. Perennial herbaceous biomass energy crops: potential and status. Biotechnology for Fuels and Chemicals Symposium Proceedings.p3. Chattanooga, TN, May 9-11, 2004Interpretive Summary:
                                Technical Abstract: Agricultural Research Service, U.S. Dept. of Agriculture (USDA-ARS), U.S. Dept. of Energy (DOE), and cooperating Universities have been investigating the feasibility of using perennial forages (herbaceous biomass) for energy production.  The most promising species include switchgrass, a native prairie grass, and alfalfa, a nitrogen-fixing legume.  Using technology that is under continual improvement, it is feasible to break down the cellulose, hemicellulose, and pectin of these biomass species into simple sugars that can be converted into ethanol or other fermentation products.  These species can produce high biomass yields on lands with high erosion potential such as the land currently enrolled in the Conservation Reserve Program that is not suitable for grain crop production, as well as be incorporated into annual row crop rotations.  Existing switchgrass and alfalfa cultivars can produce over 5 tons/acre (11 Mg/ha) which could produce ethanol yields of over 400 gal/acre (3750 L/ha). At a price of $40/US ton ($18/Mg), the feedstock cost of ethanol from biomass would be about $0.50 gallon ($0.13/L).  Research is in progress to improve biomass yield and genetically modify feedstock composition to enhance conversion to ethanol.


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