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Optimizing NaCl and KNO3 Concentrations for High b-carotene Production in Photobioreactor by Dunaliella salina KU11 Isolated from Saline Soil Sample


Paper Type 
Contributed Paper
Title 
Optimizing NaCl and KNO3 Concentrations for High b-carotene Production in Photobioreactor by Dunaliella salina KU11 Isolated from Saline Soil Sample
Author 
Ramaraj Sathasivam, Piyawat Pongpadung, Jantana Praiboon, Anong Chirapart, Savitr Trakulnaleamsai, Sittiruk Roytrakul and Niran Juntawong
Email 
fscinrj@ku.ac.th
Abstract:
The unicellular alga Dunaliella salina is a well-known, interesting cell factory for the commercial production of b-carotene. In Thailand, cultivation of D. salina for b-carotene production has not yet been studied extensively. In this study, D. salina KU11 was isolated from the saline soil samples of Chiyamphum province, Thailand. To investigate the optimal salinity and nitrate concentration for the highest b-carotene accumulation, D. salina KU11 isolate was grown in modified Johnson’s media with different salinities (from 1.0 to 3.5 M NaCl) and different nitrate concentrations (from 0.25 to 1.0 g/l). b-carotene concentration was determined by HPLC-MS. The highest b-carotene content (115.5±0.4 mg/ml and 91±2 pg/cell) was obtained using modified Johnson’s medium containing 2.5 M NaCl and 0.5 g/l KNO3.
Start & End Page 
106 - 115
Received Date 
2016-06-09
Revised Date 
Accepted Date 
2016-11-09
Full Text 
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Keyword 
Dunaliella, microalgae, Chlorophyceae, b-carotene, salt soil, salinity, nitrate
Volume 
Vol.45 No.1 (January 2018)
DOI 
Citation 
Sathasivam R., Pongpadung P., Praiboon J., Chirapart A., Trakulnaleamsai S., Roytrakul S., et al., Optimizing NaCl and KNO3 Concentrations for High b-carotene Production in Photobioreactor by Dunaliella salina KU11 Isolated from Saline Soil Sample , Chiang Mai J. Sci., 2018; 45(1): 106-115.
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