Earticle

초록

영어

Succinic acid is one of the useful platform chemical materials that can be converted into various valuable materials. The bio production process of succinic acid is a promising method to reduce environmental problems. However the separation processes to purify organic acid from fermentation broth is one of the most energy consuming process. The development of cheap and high yields separation process is crucial to consist whole bio-production process of succinic acid.Herein, we utilized electro dialysis(ED) and water splitting electro dialysis(WSED) with ion-transfermembrane to separate succinic acid from fermentation broth. Produced succinic acid from Mannheimia succiniciproducens is interfered metabolism cycle which is designed to produce succinic acid. Therefore recover of succinic acid with proper rate which is compensate the producing rate is needed to maintain its productivity. We demonstrated constant voltage operation condition with various initial ammonium succinate concentrations and voltages both ED and WSED method. We can concentrate ammonium succinate solution up to 80g/L using 20g/L fermentation broth solution using ED operation with 18V condition. The following WSED operation of concentrated ammonium succinate can transform into pure succinic acid without further acidification process and interference of other organic acids such as pyruvic acid or lactic acid. In this study we can purify succinic acid from fermentation broth properly using environmental friendly operations which can reduce the usage of chemical materials.

키워드

저자

• Sun Uk LEE [ Department of Biomolecular and Chemical Engineering, KAIST, Daejeon, 305-701. ]
• Eun Zoo LEE [ Department of Biomolecular and Chemical Engineering, KAIST, Daejeon, 305-701. ]
• Won Hi HONG [ Department of Biomolecular and Chemical Engineering, KAIST, Daejeon, 305-701. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576