FN Archimer Export Format
PT J
TI Combined Effects of Nitrogen Concentration and Seasonal Changes on the Production of Lipids in Nannochloropsis oculata
BT 
AF OLOFSSON, Martin
   LAMELA, Teresa
   NILSSON, Emmelie
   BERGE, Jean-Pascal
   DEL PINO, Victoria
   URONEN, Pauliina
   LEGRAND, Catherine
AS 1:1;2:2;3:1;4:3;5:2;6:4;7:1;
FF 1:;2:;3:;4:PDG-RBE-BRM-BIORAPHE;5:;6:;7:;
C1 Linnaeus Univ, Fac Hlth & Life Sci, Ctr Ecol & Evolut Microbial Model Syst EEMiS, S-39182 Kalmar, Sweden.
   Necton SA, P-8700152 Olhao, Portugal.
   IFREMER, Lab Sci & Technol Biomasse Marine STBM, F-44311 Nantes 03, France.
   Neste Oil, Ctr Technol, Porvoo 06101, Finland.
C2 UNIV LINNAEUS, SWEDEN
   NECTON SA, PORTUGAL
   IFREMER, FRANCE
   NESTE OIL, FINLAND
SI NANTES
SE PDG-RBE-BRM-BIORAPHE
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
IF 2.853
TC 29
UR https://archimer.ifremer.fr/doc/00184/29564/27902.pdf
LA English
DT Article
DE ;microalgae;outdoor;Nannochloropsis;large-scale;lipids;fatty acids;nitrogen manipulation;seasonal changes;biofuels;high value products
AB Instead of sole nutrient starvation to boost algal lipid production, we addressed nutrient limitation at two different seasons (autumn and spring) during outdoor cultivation in flat panel photobioreactors. Lipid accumulation, biomass and lipid productivity and changes in fatty acid composition of Nannochloropsis oculata were investigated under nitrogen (N) limitation (nitrate:phosphate N:P 5, N:P 2.5 molar ratio). N. oculata was able to maintain a high biomass productivity under N-limitation compared to N-sufficiency (N:P 20) at both seasons, which in spring resulted in nearly double lipid productivity under N-limited conditions (0.21 g L−1 day−1) compared to N-sufficiency (0.11 g L−1 day−1). Saturated and monounsaturated fatty acids increased from 76% to nearly 90% of total fatty acids in N-limited cultures. Higher biomass and lipid productivity in spring could, partly, be explained by higher irradiance, partly by greater harvesting rate (~30%). Our results indicate the potential for the production of algal high value products (i.e., polyunsaturated fatty acids) during both N-sufficiency and N-limitation. To meet the sustainability challenges of algal biomass production, we propose a dual-system process: Closed photobioreactors producing biomass for high value products and inoculum for larger raceway ponds recycling waste/exhaust streams to produce bulk chemicals for fuel, feed and industrial material.
PY 2014
PD APR
SO Marine Drugs
SN 1660-3397
PU Mdpi Ag
VL 12
IS 4
UT 000335759500011
BP 1891
EP 1910
DI 10.3390/md12041891
ID 29564
ER

EF