Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

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Growth Characteristics of Microalgae Haematococcus pluvialis by LED Light Source

LED 광원에 따른 미세조류 Haematococcus pluvialis의 성장 특성

  • Lee, Geon Woo (Department of Physics and Nano-science, Sun Moon University) ;
  • Kim, Song Yi (Department of Food Science, Sun Moon University) ;
  • Yoo, Yong Jin (Department of Physics and Nano-science, Sun Moon University) ;
  • Lee, Young Bok (Department of Physics and Nano-science, Sun Moon University) ;
  • Kim, Jin Woo (Department of Food Science, Sun Moon University) ;
  • Kim, Ho Seob (Department of Physics and Nano-science, Sun Moon University)
  • Received : 2020.06.26
  • Accepted : 2020.10.05
  • Published : 2020.10.31
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Abstract

This study evaluated the effects of the culture media and light sources on the growth of microalgae Haematococuus pluvialis. Limited ingredient medium, Modified Bold's Basic Medium (MBBM), commercial liquid fertilizer medium Neo, and seven different light sources with different wavelengths were used to incubate H. pluvialis for 39 days, and the growth rates were compared. As a result, the growth of H. pluvialis, a limited ingredient medium, produced the highest cell growth in the fluorescent light source while cell growth was the lowest in the blue+red LED. The growth of H. pluvialis in commercial medium Neo was highest in the fluorescent light source, and cell growth was lowest in the blue LED. In this study, the MBBM culture medium showed better results than the Neo culture medium. Microalgae grown in the fluorescent light source using the MBBM culture medium showed the best cell growth result in this study. The results were optimized for the culture medium, light source, and light quantity in H. pluvialis culture for the production of secondary metabolites and provide basic data for the mass culture of microalgae.

본 연구에서는 미세조류 Haematococcus pluvialis의 성장에 미치는 배양 배지와 광원의 영향을 평가하기 위해 제한 성분 배지인 Modified Bold's Basal Medium (MBBM) 와 상업용 액체 비료 배지인 Neo, 그리고 파장이 서로 다른 7개의 광원을 사용하여 H. pluvialis를 39일 동안 배양하고 성장률을 비교하였다. 그 결과 제한 성분 배지인 MBBM에서 H. pluvialis의 성장은 fluorescent light 광원에서 세포 성장이 가장 높게 나타난 반면, blue+red LED에서 세포 성장이 가장 낮게 나타났다. 상업용 배지인 Neo에서 H. pluvialis의 성장은 fluorescent light 광원에서 세포성장이 가장 높게 나타났으며, blue LED에서는 세포 성장이 가장 낮음이 확인되었다. 본 연구를 통해 MBBM 배지가 Neo 배지보다 우수한 결과를 나타내었으며 또한, MBBM 배지를 이용하여 fluorescent light에서 성장한 미세조류는 본 연구에서 가장 우수한 세포 성장 결과를 보였다. 이러한 결과는 이차대사산물 생산을 위한 H. pluvialis 배양에서 배지, 광원과 광량을 최적화한 것으로 미세조류 대량 배양에 기초 자료로써 유용하게 활용될 것이다.

Keywords

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