Journal article
Long-term reliable culture of a halophilic diatom, Amphora sp. MUR258, in outdoor raceway ponds
Journal of Applied Phycology, Vol.31(5), pp.2771-2778
2019
Abstract
The microalgal industry as a source of high-value products (i.e. β-carotene, astaxanthin) was established over 50 years ago. However, only a very small number of species have been commercialised. There is a need for new species and new products to expand this industry. The objective of this study was to examine the reliability and productivities of long-term outdoor culture of a newly isolated halophilic diatom, Amphora sp. MUR258 (Bacillariophyceae), in raceway ponds in Perth, Western Australia. The Amphora sp. was grown in outdoor raceway ponds as a semi-continuous culture for about 13 months at a culture salinity between 8.6 and 14.9% (w/v) NaCl. The highest cell density (167 × 104 cells mL−1), specific growth rate (0.29 day−1) and biomass and lipid productivities (24 and 6.8 g m−2 day−1, respectively) were achieved in summer. The annual average of biomass (ash-free dry weight) and lipid productivities was 7 and 2.2 g AFDW m−2 day−1, respectively. Minor contamination by a Navicula sp. was seen during winter, but was not a significant problem. No major protozoan contamination was seen. These results indicate the potential of reliable large-scale cultivation of Amphora sp. MUR258 as a potential source of diatom lipid and/or fucoxanthin.
Details
- Title
- Long-term reliable culture of a halophilic diatom, Amphora sp. MUR258, in outdoor raceway ponds
- Authors/Creators
- I. Indrayani (Author/Creator) - Murdoch UniversityN.R. Moheimani (Author/Creator) - Murdoch UniversityM.A. Borowitzka (Author/Creator) - Murdoch University
- Publication Details
- Journal of Applied Phycology, Vol.31(5), pp.2771-2778
- Publisher
- Springer Verlag
- Identifiers
- 991005545397607891
- Copyright
- © 2019 Springer Nature B.V.
- Murdoch Affiliation
- Algae R&D Centre; School of Veterinary and Life Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.171 Photoproductivity
- 3.171.477 Microalgae Biotechnology
- Web Of Science research areas
- Biotechnology & Applied Microbiology
- Marine & Freshwater Biology
- ESI research areas
- Plant & Animal Science