He described corn and corn stover — products of an annual domesticated crop in abundant supply, with low marginal costs of production, low acceptance barriers to farmers, and relative ease of bioengineering — as «the most promising near - term, high - volume
source of cellulosic biomass for ethanol» and «a bridging crop between first - and second - generation bioethanol.
Q Microbe ™ converts a wide
array of cellulosic biomass directly into ethanol in a single step, consolidating enzymatic hydrolysis and fermentation, largely eliminating costly enzymes and associated pretreatment, and simplifying the entire production process.
For example, starch from corn grown in the midwest has traditionally been the source of some of the ethanol used as a fuel additive in the U.S.. Another option for the conversion
of cellulosic biomass, such as hemp stalks, to ethanol is their hydrolysis to sugar, followed by fermentation and removal of the produced ethanol by distillation.