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Fatty acid profiles of four filamentous green algae under varying culture conditions
In: Bioresource Technology. Elsevier: Barking. ISSN 0960-8524; e-ISSN 1873-2976
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| Trefwoorden |
Chlorophyta [WoRMS]
Marien/Kust |
| Author keywords |
Filamentous green algae; Growth phase; Nitrogen deprivation; Darkexposure; Polyunsaturated fatty acid |
| Auteurs | | Top |
- Liu, J.
- Vanormelingen, P.
- Vyverman, W.
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| Abstract |
Although benthic filamentous algae are interesting targets for wastewater treatment and biotechnology, relatively little is known about their biochemical composition and variation in response to growth conditions. Fatty acid composition of four benthic filamentous green algae was determined in different culture conditions. Although the response was partly species-dependent, increasing culture age, nitrogen deprivation and dark exposure of stationary phase greatly increased both total fatty acid content (TFA) from 12–35 to 40–173 mg g-1 dry weight (DW) and the relative proportion of polyunsaturated fatty acids (PUFAs) from 21–58% to 55–87% of TFA, with dark exposure having the greatest effect. However, the main variation in fatty acid composition was between species, with Uronema being rich in C16:0 (2.3% of DW), Klebsormidium in C18:2?6 (5.4% of DW) and Stigeoclonium in C18:3?3 (11.1% of DW). This indicates the potential of the latter two species as potential sources of these PUFAs. |
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