| 초록 |
3rd Biomass is paid more attention as a potential resource for the production of renewable biofuels and other chemical compounds. Laminaria japonica is a well-known representative brown algal biomass which is high productivity, cheap cost, and high carbohydrate content accounting for 60 – 67% (w/w) of dry biomass weight as well. L. japonica is mainly consist of these carbohydrates such as mannitol, laminaran, fucoidan, and alginate. Among these, alginate and mannitol are the major components accounting for approximately 50% (w/w) of total carbohydrates. Mannitol is easily solubilized in aqua-phase. However, alginate and larminaran is present in the solid-phase of mixture of L. japonica which is water-insoluble polysaccharide so that its direct fermentation is usually difficult and it also requires a high HRT for production. In this study, biological pretreatment using various microbial consortium were investigated to produce fermentable saccharides from solid-phase of L. japonica, which their performances were confirmed in aerobic CSTR operation system. |
