期刊
BIORESOURCE TECHNOLOGY
卷 214, 期 -, 页码 541-547出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.05.001
关键词
Nutrient availability; Carbon partitioning; N. gaditana; R. marina; Isochrysis sp.
资金
- Oceanic Observatory of Madeira [M1420-01-0145-FEDER-000001-Observatorio Oceanico da Madeira-OOM]
To understand in which way the structural differences of three marine microalgae (Nannochloropsis gaditana, Rhodomonas marina and Isochrysis sp.) affect their carbon partitioning, growth and applicability; a stoichiometric imbalance was imposed by steady carbon and other nutrients variation. Towards high nutrients concentrations/low carbon availability a decrease of 12-51% in C/N microalgae ratio was observed and maximum cell densities were achieved. Moreover, linear correlation between the nutrient input and microalgae protein content were observed. The macromolecular ratios pointed that carbohydrate was the main contributor for the C/N decrement. Although lipid content in R. marina remained constant throughout the experiment, a rise of 37-107% in N. gaditana and Isochrysis sp. was verified. Lipid fractions revealed high percentages of glycolipids in all microalgae (57-73% of total lipids). The present study shows an easy way to understand and modulate microalgae carbon partitioning relying on the field of application. (C) 2016 Elsevier Ltd. All rights reserved.
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