KSBB Journal

The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
권호 표지

A Study on the Design Criteria of Photobioreactor for the Efficiency of Light-Utilization

빛 이용효율 향상을 위한 광생물반응기 설계 기준에 관한 연구

  • 류현진 (단국대학교 공업화학과) ;
  • 이진석 (한국에너지기술연구원 바이오매스연구센터) ;
  • 오경근 (단국대학교 공업화학과)
  • Published : 2004.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, there is a growing interest in microalgae and the use of microalgae focused on the production of various high value metabolite used in food, pharmaceuticals and cosmetics. The key limiting factor in high density algal cultivation is the light and algal growth is defined by light intensity and light penetration depth into the culture medium. The effect of light with various light paths, S/V ratios, light intensities, and 50% duty cycle on the growth of microalgae was examined to enhance microalgal biomass productivity and photosynthetic efficiency. We confirmed that the utilization of efficient light energy was obtained from 4 cm of diameter, 57.6% of S/V ratio, 62 ${\mu}$mol/㎡/s of light intensity.

최근, 미세조류에 대한 생물공학적 관심이 급격히 증가하고 있으며 이의 응용범위는 식품이나 제약, 화장품 등 다양한 구도로 확장되어지고 있다. 고농도의 미세조류 배양을 위해서는 빛이 핵심적 제한요소로 작용되어지며 빛의 투과 깊이나 강도에 따라 균체의 성장속도가 결정되어지게 된다. 본 연구에서는 다양한 빛의 투과경로와 빛을 받는 면적/배양액의 부피 비율, 조도 그리고 단계적 조사에 따른 Chlorella sp.의 성장률을 조사하여 빛이 미세조류에 미치는 영향을 알아보았으며, 본 연구에 적용된 값들 중 4 cm의 직경, 57.6%의 면적/부피 비율, 62 $\mu$mo1/$m^2$/s의 조도에서 Chlorella sp. 성장에 필요한 빛 에너지를 가장 효율적으로 이용함을 확인할 수 있었다.

Keywords

References

  1. J. Ferment. Bioeng. v.80 Effect of carbon dioxide concentration on the growth and RubisCO activity of a thermophilic cyanobacterium, Chroococcidiopsis sp. strain $TS-821^{*1}$ Nobuhiro, R. H.;L. Tatsuya;P. Yuwadee;I. Yasuo;K. Tohru https://doi.org/10.1016/0922-338X(96)80927-5
  2. Biosource Technol. v.68 $CO_2$ fixation by Chlorella sp. KR-1 and its cultural characteristics Sung, K. D.;J. S. Lee;C. S. Shin;S. C. Park;M. J. Choi https://doi.org/10.1016/S0960-8524(98)00152-7
  3. R&D Reprot of Global Environment Department Tokyo Electric Company
  4. Biochemical Engineering J. v.14 Online estimation of stirred-tank microalgal phoobioreactor cultures based on dissolved oxygen measurement Li, J.;N. S. Xu;W. W. Su https://doi.org/10.1016/S1369-703X(02)00135-3
  5. Appl. Microbiol. Biotechnol. v.57 Photobioreactors: production systems for phototrophic microorganisms Pulz, O https://doi.org/10.1007/s002530100702
  6. Biotechnol. Bioprocess Eng. v.4 Calculation of light penetration depth in photobioreactor Lee, C. G https://doi.org/10.1007/BF02931920
  7. Biotechnol. Bioeng. v.38 A structured model for simulation of cultures of the cyanobacterium Spirulina platensis in photobioreactors: II. Idenification of kinetic parameters under light and mineral limitations Cornet, J. F.;C. G. Dussap;P. Cluzel;G. Dubertret
  8. Biotechnol. Bioeng. v.38 A model for light-limited continuous cultures: Growth, shading, and maintanence Evers, E. G https://doi.org/10.1002/bit.260380307
  9. J. Microbiol. Biotechnol. v.10 Effect of flashing light on oxygen production rates in high-density algal cultures Park, K. H.; D. I. Kim;C. G. Lee
  10. Medical and Biological Aspects of the Energies of Space Rabinowitch, E.;P. A. Cambell(ed)
  11. J. Sol. Energy Science Eng. v.1 The mass culture of algae Thacker, D. R.;H. Bobcock https://doi.org/10.1016/0038-092X(57)90054-3
  12. Bioprocess Technology: fermentation, biocatalysis, bioseparation Michael, C. F.;W. D. Stephen
  13. Energy Convers Mgmt. v.36 Photosyntheric $CO_2$ fixation technologies using a helical tubular bioreactor incorporating the filamentous cyanobacterium Spirulina platensis Watanabe, Y.;O. H. David https://doi.org/10.1016/0196-8904(95)00106-N