Earticle

초록

영어

Bio-ethanol is regarded as an alternative fuel to replace fossil fuels. Sugar cane, corn, cassava and seaweed have been studied as biomass for bio-ethanol production. The seaweed is regarded a third generation biomass among them. Seaweed has advantages in fast growth of biomass and high productivity in large area. In this study, seaweed, Saccharina japonica (Sea tangle, Dasima) was used as biomass to produce bioethanol. The pretreatment was evaluated by thermal acid hydrolysis with H2SO4 and HCl. Optimal pretreatment condition was determined with 37.5mM H2SO4and10%(w/v) seaweedslurrybyautocalveat121℃ for 60 min. To Increase the yield of saccharfication, 0.45 g dcw/L of isolated marine bacteria Bacillus sp. were used often the pretreatment and 43 g/L of reducing sugar was obtained. Ethanol fermentation was performed using simultaneous saccharification and fermentation (SSF) and separate hydrolysis and fermentation (SHF) method with Pachysolen tannophilus KCTC 7937. The ethanol concentration of 6.3 g/L by SSF process and 6.0 g/L by SHF process were obtained respectively. Ethanol yields of 19.0 % and 18.1% of theoretical yield from total carbohydrate in Saccharina japonica were obtained by SSF and SHF, respectively.

키워드

저자

• Min-ji KIM [ Dept. of Biotechnology, Pukyong National University, Busan 608-737, Korea. ]
• Yukyeong CHO [ Dept. of Biotechnology, Pukyong National University, Busan 608-737, Korea. ]
• Ka-hyun JEON [ Dept. of Biotechnology, Pukyong National University, Busan 608-737, Korea. ]
• Sung-Koo KIM [ Dept. of Biotechnology, Pukyong National University, Busan 608-737, Korea. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576