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Blue-Red LED wavelength shifting strategy for enhancing beta-carotene production from halotolerant microalga, Dunaliella salina
- Authors
- Han, Sang-Il; Kim, Sok; Lee, Changsu; Choi, Yoon-E
- Issue Date
- 2월-2019
- Publisher
- MICROBIOLOGICAL SOCIETY KOREA
- Keywords
- Dunaliella salina; beta-carotene; light-emitting diode; wavelength shift; adaptive laboratory evolution
- Citation
- JOURNAL OF MICROBIOLOGY, v.57, no.2, pp.101 - 106
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF MICROBIOLOGY
- Volume
- 57
- Number
- 2
- Start Page
- 101
- End Page
- 106
- ISSN
- 1225-8873
- Abstract
- In the present study, to improve the photosynthetic betacarotene productivity of Dunaliella salina, a blue-red LED wavelength-shifting system (B-R system) was investigated. Dunaliella salina under the B-R system showed enhanced density and beta-carotene productivity compared to D. salina cultivated under single light-emitting diode light wavelengths (blue, white, and red light-emitting diode). Additionally, we developed blue light-adapted D. salina (ALE-D. salina) using an adaptive laboratory evolution (ALE) approach. In combination with the B-R system applied to ALE-D. salina (ALE B-R system), the beta-carotene concentration (33.94 +/- 0.52 M) was enhanced by 19.7% compared to that observed for the non-ALE-treated wild-type of D. salina (intact D. salina) under the B-R system (28.34 +/- 0.24 M).
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