リグノセルロース系バイオマスからの燃料用エタノール生産に向けて取り組むべき課題(<特集>リグノセルロース系バイオマスの次世代技術開発の動向II)

概要

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In recent years, the use of bio-ethanol for automobile fuels has been expanded in many countries. Currently, sugar juice from sugar cane and starch from corn and other grains have been served as the sources of biomass. However, utilization of lignocellulosic biomass has been requested for further expansion of bio-ethanol demand all over the world. For this purpose, development of the technology innovation especially on the conversion technology from cellulosic biomass to bio-ethanol is proceeding. Among them, establishment of enzymatic system for saccharification is the most important key to reduce the production cost of bio-ethanol from cellulosic biomass. The enzymatic system is composed of four element technologies, which are pre-treated biomass with the highest accessibility for enzyme. production of enzyme with the lowest cost, saccharification of pre-treated biomass by enzyme cocktail with the highest performance, recovery and reuse of enzymes. The effective combination of all these element technologies will be inevitable to accomplish the production system of bio-ethanol from lignocellulosic biomass in commercial points of view.
2011-01-20