| 초록 |
Alginate, one of the main constituents of macroalgae that considered as renewable biomass resources, is a carbohydrate polymer comprised of mannuronic acids and guluronic acids via β-1,4-glycosidic bonding similar with glucose linkages in molecular structure of cellulose. Under acidic catalytic conditions using water as a reaction medium, alginate was hydrolyzed into its two monomers and further decomposition results, such as organic acids and furfural were produced. The influence of homo- and heterogeneous acid catalyst, reaction temperature, and time stream was systematically investigated. In addition, biphasic solvents were introduced to increase the yield of furfural, one of the biomass derived platform chemical. After reactions, GPC was employed to verify molecular weight distributions and degree of depolymerization of the carbohydrate polymer. Qualitative analysis and quantification of the reaction products in liquid phase was carried out by GC-MS, LC-MS, and HPLC. |
