Long-term reliable culture of a halophilic diatom, Amphora sp. MUR258, in outdoor raceway ponds

Indrayani, Indrayani and Moheimani, Navid and Borowitzka, Michael (2019) Long-term reliable culture of a halophilic diatom, Amphora sp. MUR258, in outdoor raceway ponds. Journal of Applied Phycology, 31 (5). pp. 2771-2778. ISSN 1573-5176 (online); 0921-8971 (print)

	Text (Article- Longterm reliable culture of a halophilic diatom, Amphora sp.MUR258, in outdoor raceway ponds (The published version of the manuscript can be found at https://link.springer.com/article/10.1007/s10811-019-01803-y)) eprint-Longterm reliable culture-JAPH 2019.pdf - Accepted Version Download (1MB)
	Other (Peer Review-Long-term reliable culture of a halophilic diatom, Amphora sp. MUR258, in outdoor raceway ponds) Long term reliable 2019.PDF - Supplemental Material Download (1MB)
	Text (Turnitin-Longterm reliable culture of a halophulic diatom, Amphora sp.MUR258, in outdoor raceway ponds) Turnitin-Longterm reliable culture ok.pdf - Supplemental Material Download (1MB)
	Text (Correspondence-Longterm reliable culture of a halophulic diatom, Amphora sp.MUR258, in outdoor raceway ponds) Correspondence-Longterm reliable culture (JAPH 2019).pdf - Supplemental Material Download (1MB)

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-termoutdoor 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 AFDWm−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.

Item Type:	Article
Subjects:	FAKULTAS TEKNIK FAKULTAS TEKNIK > Pendidikan Teknologi Pertanian
Divisions:	FAKULTAS TEKNIK
Depositing User:	Dr. Indrayani Indrayani
Date Deposited:	20 Jun 2023 12:05
Last Modified:	20 Jun 2023 12:05
URI:	http://eprints.unm.ac.id/id/eprint/30644

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