Earticle

초록

영어

Bacterial cellulose(BC) was produced using saccharified food wastes(SFW) medium in air circulation bioreactor. When hydrolyzed yeast was supplied into the SFW medium to increase T-N concentration to 2.5 g/L, 6.67 g/L of BC was produced in 10 L air circulation bioreactor. Therefore, 27% of BC productivity was improved than that of culture with SFW medium. When the culture was scaled up to 50 L air circulation bioreactor, 7.37 g/L of BC was produced by
supplement of pure oxygen. Oxygen uptake rate(OUR) and specific respiration rate ( q O 2) in the culture were 0.21 mg DO/L․min and 0.26 mg DO/g cell․min after 12 hours cultivation, respectively. In conclusion, addition of hydorlyzed yeast as nitrogen source into SFW medium considerably improved BC productivity.

한국어

10 L 공기순환반응기에서 음식물쓰레기 당화액배지의 환원당 농도 70 g/L, 효모가 수분해액을 첨가하여 T-N농도를 2.5 g/L로 조절한 결과, BC생산 농도는 6.67 g/L이었으며, 질소원을 첨가하지 않은 SFW에서보다 생산량이 27% 증가하였다. 같은 조건으로 공기순환배양기에서 50 L 순산소를 첨가하여 확대배양한 결과 BC 생산농도는 7.37 g/L 이었으며, 이때 균의 OUR은 0.214 mg DO/L․min, q O 2은 0.257
mg DO/g cell․min이었다.

저자

• Hongxian Li [ Dept. of Environmental Engineering, Chonnam National University ]
• Yong-Jin Kim [ Dept. of Maritime Environmental Engineering, Mokpo National Maritime University ]
• Seong-Jun Kim [ Dept. of Environmental Engineering, Chonnam National University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576