NDLI: Cultivation Method Effect on Schizochytrium sp. Biomass Growth and Docosahexaenoic Acid (DHA) Production with the Use of Waste Glycerol as a Source of Organic Carbon

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Cultivation Method Effect on Schizochytrium sp. Biomass Growth and Docosahexaenoic Acid (DHA) Production with the Use of Waste Glycerol as a Source of Organic Carbon

Content Provider	MDPI
Author	Marcin, Dębowski Marcin, Zieliński Kujawska, Natalia Talbierz, Szymon Kazimierowicz, Joanna
Copyright Year	2021
Description	Inexpensive carbon sources offering an alternative to glucose are searched for to reduce costs of docosahexaenoic acid production by microalgae. The use of waste glycerol seems substantiated and prospective in this case. The objective of this study was to determine the production yield of heterotrophic microalgae Schizochytrium sp. biomass and the efficiency of docosahexaenoic acid production in various types of cultures with waste glycerol. Cultivation conditions were optimized using the Plackett–Burman method and Response Surface Methodology. The highest technological performance was obtained in the fed-batch culture, where the concentration of Schizochytrium sp. biomass reached 103.44 ± 1.50 $g/dm^{3}$, the lipid concentration in Schizochytrium sp. biomass was at 48.85 ± 0.81 $g/dm^{3}$, and the docosahexaenoic acid concentration at 21.98 ± 0.36 $g/dm^{3}$. The highest docosahexaenoic acid content, accounting for 61.76 ± 3.77% of total fatty acids, was determined in lipid bodies of the Schizochytrium sp. biomass produced in the batch culture, whereas the lowest one, accounting for 44.99 ± 2.12% of total fatty acids, in those of the biomass grown in the fed-batch culture.
Starting Page	2952
e-ISSN	19961073
DOI	10.3390/en14102952
Journal	Energies
Issue Number	10
Volume Number	14
Language	English
Publisher	MDPI
Publisher Date	2021-05-20
Access Restriction	Open
Subject Keyword	Energies Paper and Wood Water Science and Technology Microalgae Heterotrophic Culture Docosahexaenoic Acid Glycerol Cultivation Methods
Content Type	Text
Resource Type	Article

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