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https://doi.org/10.21256/zhaw-28451| Publikationstyp: | Thesis: Master |
| Titel: | Cultivation of the carotenoid-producing microalgae Chromochloris zofingiensis at laboratory and pilot scale |
| Autor/-in: | Vozelj, Pia |
| Betreuer/-in / Gutachter/-in: | Refardt, Dominik Egloff, Sophia Griessler Bulc, Tjaša |
| DOI: | 10.21256/zhaw-28451 |
| Umfang: | 29 |
| Erscheinungsdatum: | 2023 |
| Verlag / Hrsg. Institution: | ZHAW Zürcher Hochschule für Angewandte Wissenschaften |
| Verlag / Hrsg. Institution: | Winterthur |
| Sprache: | Englisch |
| Fachgebiet (DDC): | 579: Mikrobiologie |
| Zusammenfassung: | The cultivation of microalgae is a promising way of obtaining natural carotenoids. However, their production is not yet cost-effectively sufficient to compete with current synthetic methods. To overcome crucial techno-economic challenges, studies are being conducted for selection of the ideal species with superior characteristics. One of the leading candidates is Chromochloris zofingiensis. Due to fast growth rate, robustness and tolerance to adverse culture conditions, it has the potential for commercial production. To make that happen, the cultivation needs to be scaled up in an open system. With this study, the feasibility of outdoor cultivation of Chromochloris zofingiensis was tested. Different media, nitrogen sources and media concentrations were investigated on a laboratory scale. Threefold BBM+3N achieved highest growth and was used for cultivation on an open thin-layer photobioreactor. Cultivation was proven to be successful, achieving high biomass density (11.75 g L-1) and biomass productivity (1.02 g L-1 d-1). Microalgal culture showed promising results, all while withstanding fluctuating outdoor conditions. The final amount of accumulated astaxanthin was 3.63 mg/g. With a laboratory experiment astaxanthin production was compared in BBM+3N and stressful conditions (high salinity and reduced nitrogen availability) after achieving high biomass. The combination of high salinity and nitrogen reduction (4.48 mg/g) enabled microalgae to produce more astaxanthin than the control (3.56 mg/g). |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/28451 |
| Lizenz (gemäss Verlagsvertrag): | CC BY 4.0: Namensnennung 4.0 International |
| Departement: | Life Sciences und Facility Management |
| Enthalten in den Sammlungen: | Masterarbeiten Umwelt und Natürliche Ressourcen |
Dateien zu dieser Ressource:
| Datei | Beschreibung | Größe | Format | |
|---|---|---|---|---|
| 2022_Vozelj_Pia_BA_UI19.pdf | 1.23 MB | Adobe PDF |  Öffnen/Anzeigen |
Zur Langanzeige
Vozelj, P. (2023). Cultivation of the carotenoid-producing microalgae Chromochloris zofingiensis at laboratory and pilot scale [Master’s thesis, ZHAW Zürcher Hochschule für Angewandte Wissenschaften]. https://doi.org/10.21256/zhaw-28451
Vozelj, P. (2023) Cultivation of the carotenoid-producing microalgae Chromochloris zofingiensis at laboratory and pilot scale. Master’s thesis. ZHAW Zürcher Hochschule für Angewandte Wissenschaften. Available at: https://doi.org/10.21256/zhaw-28451.
P. Vozelj, “Cultivation of the carotenoid-producing microalgae Chromochloris zofingiensis at laboratory and pilot scale,” Master’s thesis, ZHAW Zürcher Hochschule für Angewandte Wissenschaften, Winterthur, 2023. doi: 10.21256/zhaw-28451.
VOZELJ, Pia, 2023. Cultivation of the carotenoid-producing microalgae Chromochloris zofingiensis at laboratory and pilot scale. Master’s thesis. Winterthur: ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Vozelj, Pia. 2023. “Cultivation of the Carotenoid-Producing Microalgae Chromochloris Zofingiensis at Laboratory and Pilot Scale.” Master’s thesis, Winterthur: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. https://doi.org/10.21256/zhaw-28451.
Vozelj, Pia. Cultivation of the Carotenoid-Producing Microalgae Chromochloris Zofingiensis at Laboratory and Pilot Scale. ZHAW Zürcher Hochschule für Angewandte Wissenschaften, 2023, https://doi.org/10.21256/zhaw-28451.
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