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Screening of Freshwater Microalgae for Resistance to Ultraviolet Radiation

자외선 차단능을 보유한 미세조류의 스크리닝

  • Received : 2014.12.30
  • Accepted : 2015.01.29
  • Published : 2014.12.31

Abstract

Ultraviolet-B radiation (UV-B) in sunlight causes biological damages such as erythema and blister on skin. Microalgae have been in the limelight as an attractive feedstock for manufacturing functional materials. This study focused on screening microalga with protection ability against UV-B. The microalgae were isolated from local areas on April to June 2013 as well as June 2014. The cells were grown under continuous illumination from fluorescent lamps at $136.3{\pm}2.2{\mu}E/m^2/s$ in BG-11 medium at $15^{\circ}C$ for 12-14 days. The selected cells were spread on BG-11 agar and were exposed to UV-B (312 nm) for 20 and 25 minutes. The 13 strains among selected algae were classified. Among these, 9 strains were Scenedesmus sp. and the remains were Chlorella sp. Based on this study, it seems that Scenedesmus sp. and Chlorella sp. have resistibility against ultraviolet. These results will help to study on UV protection using microalgae.

Keywords

microlagae;screening;Ultraviolet-B radiation;protection ability

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Acknowledgement

Grant : 해양미세조류 이용 바이오디젤 생산기술 개발

Supported by : 해양수산부