An Alternative Approach to the Traditional Mixotrophic Cultures of Haematococcus pluvialis Flotow (Chlorophyceae)

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dc.authoridAk, Ilknur/0000-0002-0233-0025
dc.contributor.authorGoksan, Tolga
dc.contributor.authorAk, Ilknur
dc.contributor.authorGokpinar, Sevket
dc.date.accessioned2025-01-27T20:14:38Z
dc.date.available2025-01-27T20:14:38Z
dc.date.issued2010
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn traditional mixotrophic cultures of microalgae, all the inorganic nutrients and organic carbon sources are supplied in the medium before inoculation. In this study, however, an alternative approach was adopted in Haematococcus pluvialis Flotow, a microalga capable of growing mixotrophically on sodium acetate (Na-Ac). First, the cells were grown under 75 mu mol photons m(-2) s(-1) phototrophically without Na-Ac until the stationary phase and then exposed to five different light regimes by the addition of Na-Ac (e.g., dark, 20, 40, 75, and 150 mu mol photons m(-2) s(-1)). Dry weight (DW), pigments, and especially cell number in alternative mixotrophy (AM) were higher than traditional mixotrophy (TM). Cell number in AM almost doubled up from 21.7 to 42.9x10(4) cells/ml during 5-day exposure to Na-Ac, whereas the increase was only 1.2-fold in TM. Maximum cell density was reached in 75 mu mol photons m(-2)s(-1) among the light intensities tested. We propose that Na-Ac in TM of H. pluvialis can not be utilized as efficiently as in AM. With this respect, AM has several advantages against TM such as a much higher cell density in a batch culture period and minimized risk of contamination owing to the shorter exposure of cells to organic carbon sources. In consequence, this method may be used for other strains of the species, and even for the other microalgal species able to grow mixotrophically.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [TOVAG 104V060]
dc.description.sponsorshipThis research was supported by the Scientific and Technological Research Council of Turkey (TUBITAK), Project No. TOVAG 104V060.
dc.identifier.doi10.4014/jmb.0909.09005
dc.identifier.endpage1282
dc.identifier.issn1017-7825
dc.identifier.issn1738-8872
dc.identifier.issue9
dc.identifier.pmid20890091
dc.identifier.scopus2-s2.0-77957745349
dc.identifier.scopusqualityQ2
dc.identifier.startpage1276
dc.identifier.urihttps://doi.org/10.4014/jmb.0909.09005
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21156
dc.identifier.volume20
dc.identifier.wosWOS:000282260500003
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherKorean Soc Microbiology & Biotechnology
dc.relation.ispartofJournal of Microbiology and Biotechnology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectHaematococcus pluvialis
dc.subjectvegetative growth
dc.subjectmixotrophic culture
dc.subjectacetate
dc.subjectpigments
dc.titleAn Alternative Approach to the Traditional Mixotrophic Cultures of Haematococcus pluvialis Flotow (Chlorophyceae)
dc.typeArticle

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