Related by context. Frequent words. (Click for all words.) 70 cellulosic biomass 67 cellulose 67 cellulosic 67 feedstocks 63 Cellulosic ethanol 63 crop residues 60 cellulosic ethanol 60 switchgrass 59 lignin 59 corn stover 59 hydrocarbon fuels 59 biobutanol 58 cellulosic biofuels 58 biomass 58 feedstock 58 oilseed crops 57 biofuels 56 biodegradable plastics 56 biofuel 56 bioenergy 56 bio fuels 55 pyrolysis 55 butanol 55 syngas 55 bioproducts 54 algal 54 transgenic plants 54 biopolymers 54 biobased 53 Fischer Tropsch 53 photosynthesis 53 enzymes 53 liquid fuels 53 corn ethanol 53 anaerobic digestion 53 alternative fuels 53 crop residue 53 bio ethanol 52 byproducts 52 sweet sorghum 52 formic acid 52 renewable fuels 52 anaerobic digesters 52 organic solvents 52 internal combustion engines 52 ethanol 52 biorefineries 52 microalgae 51 sugars 51 hydrolysis 51 biomass fuels 51 glycerol 51 biochemicals 51 biodiesel 51 coal liquefaction 51 microorganisms 51 nanofibers 51 bioethanol 51 starch 51 synthetic fuels 51 polymers 50 woody biomass 50 fossil fuels 50 algae 50 bacteria fungi 50 gasifier 50 corn stalks 50 fermentation 50 starches 50 vegetable oils 50 bioplastic 50 nitrogen fertilizers 50 Miscanthus 49 enzymatic 49 microorganism 49 biochar 49 bioplastics 49 animal fats 49 wood chips 49 alcohols 49 distillers grain 49 synthetic fertilizers 49 catalysis 49 organic fertilizers 49 recombinant DNA 48 Enzymes 48 bagasse 48 Genomatica 48 hydrogenation 48 biorefinery 48 biomolecules 48 micro organisms 48 biomass gasification 48 hydrogen 48 bioremediation 48 chemistries 48 bio diesel 48 Qteros 48 monocultures 48 corn cobs 48 substrates