Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7071876 | Bioresource Technology | 2016 | 33 Pages |
Abstract
Despite the vast interest in microalgae as feedstock for biodiesel production, relatively few studies examined their response to diurnal temperature fluctuation. Here, we describe biomass and lipid productivities and fatty acid profiles of thermo-resistant Micractinium sp. and Scenedesmus sp. grown in batch cultures in a laboratory set-up that mimics a typically warm summer day in Central Anatolia with a 16-h light temperature of 30 °C and 8-h dark temperature of 16 °C (30 °C (day)/16 °C (night)). Both strains can survive a temperature range of 10-50 °C. We found the lipid productivities of Micractinium sp. and Scenedesmus sp. as 30/21 mg Lâ1 dâ1 and 6/7 mg Lâ1 dâ1, respectively during the 30 °C (day)/16 °C (night) cycle. Saturated fatty acid content increased with increasing temperature. Additionally, we cultured Micractinium sp. under Nitrogen (N) and Phosphorus (P) limiting conditions. Highest lipid productivity of 85.4 ± 2 mg Lâ1 dâ1 was obtained under P-depletion during exponential growth phase. Oleic acid amount also increased eight fold during P-deplete.
Related Topics
Physical Sciences and Engineering
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Authors
Cagla Sonmez, Evrim Elcin, Dilan Akın, Huseyin Avni Oktem, Meral Yucel,