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Journal article
Co-Producing Phycocyanin and Bioplastic in Arthrospira platensis Using Carbon-Rich Wastewater
Biotech (Basel), Vol.12(3), 49
2023
Abstract
Microalgae can treat waste streams containing elevated levels of organic carbon and nitrogen. This process can be economically attractive if high value products are created simultaneously from the relatively low-cost waste stream. Co-production of two high value microalgal products, phycocyanin and polyhydroxybutyrate (PHB), was investigated using non-axenic Arthrospira platensis MUR126 and supplemental organic carbon (acetate, oxalate, glycerol and combinations). All supplemented cultures had higher biomass yield (g/L) than photoautotrophic control. All cultures produced PHB (3.6–7.8% w/w), except the control and those fed oxalate. Supplemented cultures showed a two to three-fold increase in phycocyanin content over the eight-day cultivation. Results indicate co-production of phycocyanin and PHB is possible in A. platensis, using mixed-waste organic carbon. However, supplementation resulted in growth of extremophile bacteria, particularly in cultures fed glycerol, and this had a negative impact on culture health. Refinement of the carbon dosing rate is required to minimise impacts of native bacterial contamination.
Details
- Title
- Co-Producing Phycocyanin and Bioplastic in Arthrospira platensis Using Carbon-Rich Wastewater
- Authors/Creators
- Hajar Shayesteh - Murdoch UniversityDamian W. Laird - Murdoch UniversityLeonie J. Hughes - Murdoch UniversityMohammad A. Nematollahi - University of TehranAmin Mirshamsi Kakhki - Ferdowsi University of MashhadNavid R. Moheimani - Murdoch University
- Publication Details
- Biotech (Basel), Vol.12(3), 49
- Publisher
- MDPI
- Identifiers
- 991005592753507891
- Copyright
- © 2023 by the authors.
- Murdoch Affiliation
- School of Mathematics, Statistics, Chemistry and Physics; School of Environmental and Conservation Sciences; Centre for Water, Energy and Waste; Algae R&D Centre
- Language
- English
- Resource Type
- Journal article
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