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Author’s VersionCC BY-NC-ND V4.0, Open Access
Journal article
Pilot-scale continuous recycling of growth medium for the mass culture of a halotolerant Tetraselmis sp. in raceway ponds under increasing salinity: A novel protocol for commercial microalgal biomass production
Bioresource Technology, Vol.161, pp.47-54
2014
Abstract
The opportunity to recycle microalgal culture medium for further cultivation is often hampered by salinity increases from evaporation and fouling by dissolved and particulate matter. In this study, the impact of culture re-use after electro-flocculation of seawater-based medium on growth and biomass productivity of the halotolerant green algal strain Tetraselmis sp., MUR 233, was investigated in pilot-scale open raceway ponds over 5months. Despite a salinity increase from 5.5% to 12% (w/v) NaCl, Tetraselmis MUR 233 grown on naturally DOC-enriched recycled medium produced 48-160% more ash free dry weight (AFDW) biomass daily per unit pond area than when grown on non-recycled medium. A peak productivity of 37.5±3.1gAFDWm-2d-1 was reached in the recycled medium upon transition from ~14% to ~7% NaCl. The combination of high biomass-yielding mixotrophic growth under high salinity has been proven to be a successful sustainable cultivation strategy.
Details
- Title
- Pilot-scale continuous recycling of growth medium for the mass culture of a halotolerant Tetraselmis sp. in raceway ponds under increasing salinity: A novel protocol for commercial microalgal biomass production
- Authors/Creators
- S. Fon Sing (Author/Creator)A. Isdepsky (Author/Creator) - Murdoch UniversityM.A. Borowitzka (Author/Creator) - Murdoch UniversityD.M. Lewis (Author/Creator) - The University of Adelaide
- Publication Details
- Bioresource Technology, Vol.161, pp.47-54
- Publisher
- Elsevier BV
- Identifiers
- 991005541594207891
- Copyright
- © 2014 Elsevier Ltd.
- Murdoch Affiliation
- School of Veterinary and Life Sciences; Algae and Seagrass Research Group
- Language
- English
- Resource Type
- Journal article
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- 3 Agriculture, Environment & Ecology
- 3.171 Photoproductivity
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