Effect of initial biomass-specific photon supply rate on fatty acid accumulation in nitrogen depleted Nannochloropsis gaditana under simulated outdoor light conditions
| Autor: | Packo P. Lamers, Jorijn H. Janssen, René H. Wijffels, Maria Barbosa, Jasper L. S. P. Driessen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Bio Process Engineering Photoinhibition Photon Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 [VDP] Initial biomass concentration chemistry.chemical_element Biomass 01 natural sciences Triacylglycerol 03 medical and health sciences 010608 biotechnology Food science VLAG Nannochloropsis gaditana chemistry.chemical_classification Biomass-specific photon supply rate Nitrogen starvation Fatty acid Nitrogen Ray 030104 developmental biology chemistry Yield (chemistry) Agronomy and Crop Science |
| Zdroj: | Algal Research 35 (2018) Algal Research Algal Research, 35, 595-601 |
| ISSN: | 2211-9264 |
| Popis: | Triacylglycerol (TAG) accumulation in the microalgae Nannochloropsis gaditana is induced by nitrogen starvation and dependent on the light supplied. We studied under simulated outdoor light conditions the effect of supplied light on the TAG yield by varying the biomass-specific photon supply rate present at the onset of nitrogen starvation. High, intermediate and low average biomass-specific photon supply rates (26, 11 and 6 μmol g−1 s−1) were achieved by applying equal incident light intensity to different biomass concentrations (1.2, 2.9 and 5.4 g L−1). The intermediate biomass-specific photon supply rate resulted in the highest time-averaged TAG yield on light; 0.09 gTAG molph−1. Sub-optimal yields were attributed to photosaturation, photoinhibition, light falling through reactor without being absorbed and high maintenance requirements. The biomass-specific photon supply rate is important to optimize TAG production by microalgae. publishedVersion |
| Databáze: | OpenAIRE |
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