Earticle

초록

영어

Selection of biomass which is inexpensive and long term-supplied became an important issue due to environmental and ethical reason. Marine biomass is getting more attention as one of the candidates for substrates for biofuels since algae are rich in carbohydrates and minerals and can be cultivated without limitation of water and land. Unlike use of starch-based substrates, corn and sugarcane, use of algae as substrates for biofuel production can avoid the ethical issue such as shortage of food supply. In addition, it is also expected that the hydrolysates of algae can be better fermentation substrates due to its lower content of lignin compared to lignocellulosic materials. In the case of red algae, they are high in galactan and glucan, which can be converted into galactose and glucose upon hydrolysis, respectively. Fermentation of galactose is a problematic since butanol is produced at low yield when galactose is used as a sole carbon source. In order to enhance the conversion of galactose into butanol, we performed a chemical mutagenesis using clostridium beijerinckii and selected for both galactose-hyperutilizing and butanol-hyperproducting phenotypes. Two mutant strains were isolated and characterization of mutant strains is currently undertaken.

키워드

저자

• Pan LI [ Department of Chemical Engineering, Sungkyunkwan University. ]
• Min-woo SONG [ Department of Chemical Engineering, Sungkyunkwan University. ]
• Byung-woo KIM [ Department of Chemical Engineering, Sungkyunkwan University. ]
• Jieun LEE [ Department of Chemical Engineering, Sungkyunkwan University. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576