Earticle

초록

영어

Mircoalgae require proper conditions for the cell growth. Since microalgae are photosynthetic, proper light source, carbon dioxide concentration, water, and inorganic salts are required for optimal growth conditions. In this study, various light intensities and nitrate concentrations were tested with conditions of 20℃, 24:0 L:D cycle and 2.5 L/min aeration rate in 20 L batch culture. It took 5 days to reach the stationary phase for the culture of T. suecica with the light intensities of 108.9 and 133.1 μmol/m2/s with biomass of 0.89 and 0.88 g dcw/L, respectively. And, biomass productions of 1.07 and 1.00 g dcw/L were obtained with the nitrate concentrations of 18.55 and 24.74 mg/L, respectively. Nitrate was consumed by T. suecica of all tested groups within 5 days after the inoculation. Two-stage culture process through nitrate depletion led to increase oil contents from 7.6 % to 17.3 % (w/w) and contents of C16∼�18 fatty acids from 540.2 mg/g oil to 720.5 mg/g oil at 4th day after nitrate depletion. The biomass production and oil content of T. suecica was enhanced by the optimization of growth conditions and 2-stage culture process.

키워드

저자

• Sugeun GO [ Dept. of Biotechnology, Pukyong National University, Busan 608-737. ]
• Seok-Joo LEE [ Dept. of Biotechnology, Pukyong National University, Busan 608-737. ]
• Hyejin KIM [ Dept. of Biotechnology, Pukyong National University, Busan 608-737. ]
• Sung-Koo KIM [ Dept. of Biotechnology, Pukyong National University, Busan 608-737. ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576