earticle

영어

Depletion of fossil fuels and the increasing price of petroleum-based fuels have strengthened the interest of alternative. Renewable bioenergy has been introduced as an important contribution to future sustainable energy system. Among them, bioethanol is a promising fuel as it could replace the transportation fuels. Current bioethanol production has been performed using agricultural feedstock and lignocellulosic biomass but it has the considerable problem to its sustainability and difficulties of lignin decomposition, respectively. The seaweed is third generation biomass for the bioethanol production with advantages of high carbohydrate content and lignin-free compositions. The seaweed, Saccharina japonica (sea tangle) was studied as substrates for the bioethanol production in this study. S. japonica has high contents of carbohydrates such as alginate, laminaran and fucoidan. Conversion of its polysaccharide to monosaccharide, the saccharification must be performed prior to fermentation. Thermal hydrogen peroxide and marine bacteria treatment were applied for the saccharification. And separate hydrolysis and fermentation (SHF) is a potential operation mode for effective ethanol production from hydrogen peroxidel pretreated S. japonica.