earticle

영어

Bioethanol is one of the most common biofuels that can be obtained from various types of biomass. Recently, seaweed biomass has received great attention as a new potent feedstock for bioethanol production because of its abundance in coastal area and high CO2 capturing ability during the growth. To produce ethanol from seaweed, polysaccharides contained in the seaweed biomass should be first converted into easily-fermentable monosaccharides. This saccharification step is usually considered as the bottleneck of the ethanol production so that it is important to develop an efficient method, whatever it would be biochemical or physicochemical one. In this study, we isolated several new bacteria capable of performing saccharification from the gut of Batillus cornutus, and evaluated their enzymatic abilities to hydrolyze the polysaccharides of a brown alga, Laminaria Japonica. Using DNSA (dinitrosalicylic acid) method, we determined the enzyme activities of the isolated bacteria, which encompassed cellulase, alginate lyase and laminarinase.