抄録
Carbon recycling is a technology that captures CO2 and reuses it as a variety of carbon compounds, and is positioned as a key technology for realizing a carbon-neutral society. Macroalgae have CO2 absorption and fixation capacities that surpass those of woody biomass such as cypress and cedar. The algae, which grow by absorbing CO2, can be used to produce polysaccharides and physiologically active substances that have high added value. This review introduces research results on the following technologies that are essential for establishing blue carbon recycling: 1) production of inedible seaweed biomass through aquaculture, 2) utilization of useful secondary metabolites obtained from the algae, and 3) complete decomposition of macroalgal polysaccharides using enzymes obtained from marine bacteria and the production of rare monosaccharides and oligosaccharides.
