biofuels lignin monolignols catalysis hydrogenolysis ethanol lignocellulosic biomass biomass base-catalyized depolymerization hydroenation biochemical conversion gasification depolymerization bioenergy conversion pyrolysis thermochemical converision bioenegy microalgae biodiesel algae fences erosion waterway runoff managment practices tillage watershed organic crops soil mangement thermochemical conversion biofuel biochemical method corn thermochemical method pretratment ionic liquid dilute acid
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