Earticle

초록

영어

Heteropolysaccharide-7 (PS-7) is a possible alternative to xanthan or gellan due to its properties and potential applications. Sucrose was developed as a carbon source for production of PS-7 by Beijerinckia indica HS-2001 to overcome catabolite repression against glucose. The optimal carbon source and inoculum size for the production of PS-7 by B. indica HS-2001 were found to be sucrose and 5.0% (v/v). The optimal agitation speed and aeration rate for cell growth of B. indica HS-2001 were 495 rpm and 1.8 vvm using response surface methodology (RSM), whereas those for the production of PS-7 were 440 rpm and 1.2 vvm. The optimal inner pressure for cell growth of B. indica HS-2001 in a 100 L bioreactor was 0.02 MPa, whereas that for the production of PS-7 was 0.04 MPa. The production of PS-7 by B. indica HS-2001 from 30.0 g/L sucrose with an optimized inner pressure was 10.20 g/L, which was 1.32 times higher than that without inner pressure in a 100 L bioreactor. The maximal production of PS-7 under optimal conditions was 1.55 times higher than that before optimization.

키워드

저자

• Myung Hwan KIM [ Department of Medical Bioscience of Graduate School of Dong-A University and Dong A University, Busan. ]
• Hyung-Woo Kim [ Department of Medical Bioscience of Graduate School of Dong-A University and Dong A University, Busan. ]
• Wa Gao [ Department of Medical Bioscience of Graduate School of Dong-A University and Dong A University, Busan. ]
• Jin-Woo Lee [ BK21 Bio-Silver Program of Dong-A University, and Department of Biotechnology, Dong-A University, Busan 604-714, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576