earticle

영어

Carbohydrate content in algae is one of the present feedstock for bioethanol. The doubling time of microalgae could be range from 3.5 to 6 hours which is short time. Very fast growing microalgae with high content of carbohydrate is a potential feedstock which is renewable and environmental friendly. The present study is carried out for saccharification of Laminaria japonica and Spirulina platensis with acid hydrolysis which is essential to get fermentable sugars. Powder of Laminaria japonica was purchased from Jeon-Won Foods Co where as Spiruilina was cultivated in photobioreactor with spirulina medium, temperature 30℃, light 60~70μmol/m²·s and 0.7 vvm air was provided.
The biomass was hydrolysis with sulfuric and hydrochloric acid concentration range from 1, 3, and 5% with temperature 110℃ and 12 0℃ for 30 and 60 minutes. The increase in acid concentration during acid hydrolysis did not significantly affect the total sugar and glucose concentration. In case of biomass higher biomass 1% result higher total sugar yield. In this study, pre-experiment is reported for the most efficient conditions of saccharification using acid hydrolysis for bioethanol production.