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http://hdl.handle.net/1942/28491
Title: | Enhanced phycocyanin and protein content of Arthrospira by applying neutral density and red light shading filters: a small-scale pilot experiment | Authors: | Kilimtzidi, Evmorfia Cuellar Bermudez, Sara Markou, Giorgos Goiris, Koen VANDAMME, Dries Muylaert, Koenraad |
Issue Date: | 2019 | Source: | JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 94 (6), p. 2047-2054 | Abstract: | BACKGROUND: The cyanobacterium Arthrospira contains proteins and the blue pigment phycocyanin that can be used as a natural colourant in the food industry. The aim of this study was to investigate a strategy for increasing the yield of phycocyanin and protein from Arthrospira cultures by shading the cultures with neutral density and red light filters. Experimentswereconductedunder threedifferent irradianceconditions: (i) laboratory testsunder relatively lowlight intensities (100 ??molm−2 s−1), (ii) laboratory tests under relatively high light intensities (516 ??molm−2 s−1) and (iii) scaled-up tests under natural conditions by cultivating Arthrospira in raceway ponds in a greenhouse. RESULTS: In all cases, shading of cultures with red filters resulted in biomass with increased phycocyanin content achieving a maximum of 134, 71 and 121mgg−1 under low light intensity, high light intensity and natural conditions, respectively. Under high light intensity and natural conditions, shaded cultures displayed phycocyanin of higher purity and increased protein content, which reached up to 43 and 65%, respectively. CONCLUSIONS: Shading of Arthrospira cultures by low-cost polyester red light filters may be an effective way for enhancing phycocyanin production and improving its purity in outdoor ‘spirulina farms’. | Notes: | Kilimtzidi, E (reprint author), Katholieke Univ Leuven, Lab Aquat Biol, Campus Kortrijk,E Sabbelaan 53, B-8500 Kortrijk, Belgium. evmorfia.kilimtzidi@kuleuven.be | Keywords: | Arthrospira platensis; Spirulina; phycobiliproteins; colouring foodstuffs; C-phycocyanin | Document URI: | http://hdl.handle.net/1942/28491 | ISSN: | 0268-2575 | e-ISSN: | 1097-4660 | DOI: | 10.1002/jctb.5991 | ISI #: | 000467459200035 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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Kilimtzidi_et_al-2019-Journal_of_Chemical_Technology_&_Biotechnology.pdf | Peer-reviewed author version | 1.82 MB | Adobe PDF | View/Open |
Kilimtzidi_et_al-2019-Journal_of_Chemical_Technology_&_Biotechnology.pdf Restricted Access | Published version | 1.17 MB | Adobe PDF | View/Open Request a copy |
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