Acid hydrolysis of L. japonica biomass followed by simultaneous
treatment of the lysate with hydrolytic enzymes and fermentation
with ethanogenic E. coli KO11 resulted in an ethanol yield of
0.4 g ethanol/g of sugars. This yield was achievable because E. coli KO11 was able to utilize mannitol which is present in high
amounts in the hydrolysate. The strategy employed could thus be
a way of utilizing marine alga biomass for the production of
bioethanol.