Abstract
Recently, Sargassum horneri, which has been introduced in large quantities to the west and south coasts of Korea, belongs to brown macroalgae and has high potential as a biomass for biofuel production. Therefore, in this study, the effect of salinity on the hydrolysis process was examined for the S. horneri. As a result of analyzing the ash of the unwashed sample, about 73% of the ash was found to be salts. And 96.0% of the total salt was removed by 3 repeated washing. The production of reducing sugars according to the hydrolysis method was 27.95 and 35.25 mg/g-biomass (4.1– 4.4% of hydrolysis efficiency), respectively in unwashed and washed samples by hydrothermal treatment, 37.72 and 61.71 mg/g-biomass (5.9–7.2% of hydrolysis efficiency) by enzyme treatment, and 100.49 and 138.91 mg/g-biomass (15.7– 16.1% of hydrolysis efficiency) by hydrothermal–enzyme sequential treatment, consequently, compared to the unwashed sample, it was possible to obtain 1.26–1.64 times higher reducing sugar in the washed sample. Especially, salinity in the sample has a significant effect on the bio-hydrolysis process.
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