Earticle

초록

영어

Seaweed is a third-generation biomass that can be used in bioenergy production and has many advantages. The seaweed grows quickly, is lignin-free and is not used as a food crop. The red seaweed, Euchema sponosum, is cultivated in Indonesia. The first step, seaweed slurry was pretreated by thermal acid hydrolysis and enzyme treatment. Optimal pretreatment condition was determined with 11% (w/v) solid content of seaweed and 150 mM sulfuric acid at 121℃ for 40 min. And enzyme saccharification was carried out Celluclast 1.5L and Viscozyme L at pH 4.5, 40℃. However, E. spinosum produced Five-HMF of 6 g/L after thermal acid hydrolysis. To removed 5-HMF, in addition of active charcoal was carried out in the range of 3-6% at room temperature for 2 hour. 5-HMF was reduced from 6 g/L to 1 g/L on 6% active charcoal. The ethanol fermentation was carried out using SHF with Kluyveromyces marxianus KCTC 7150. The ethanol fermentation from 5-HMF removed E. sponosum hydrolysate produced 18 g/L using K. marxianus for 48 h. On the other hand, ethanol fermentation was prolonged when 5-HMF existed.

키워드

저자

• Min-ji KIM [ Dept. of Biotechnology, Pukyung National University, Busan, 608-737. ]
• Sung-Koo KIM [ Dept. of Biotechnology, Pukyung National University, Busan, 608-737. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576