Turbidostat operation of outdoor pilot-scale photobioreactors

Vree, Jeroen H. de; Bosma, R.; Wieggers, Rick; Gegic, Snezana; Janssen, Marcel; Barbosa, María J.; Wijffels, René H.

doi:10.1016/j.algal.2016.06.006

Cited by 35 publications

(39 citation statements)

References 46 publications

(66 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When applying repeated batch cultures, the constantly changing biomass concentrations, together with the fluctuating solar irradiances, make it difficult to ensure optimal irradiance available for cultures. Too high or too low irradiance can result in suboptimal operation, due to incomplete light absorption and photo-inhibition, or dark zones that reduce the productivity, respectively [31] , [32] . Keeping the DW between approximately 0.4 and 2.5 g L − 1 turned out to be a suitable range for maintaining the strains at linear growth during spring and summer.…”

Section: Discussionmentioning

confidence: 99%

Comparing EPA production and fatty acid profiles of three Phaeodactylum tricornutum strains under western Norwegian climate conditions

et al. 2018

View full text Add to dashboard Cite

Microalgae could provide a sustainable alternative to fish oil as a source for the omega-3 polyunsaturated fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). However, growing microalgae on a large-scale is still more cost-intensive than fish oil production, and outdoor productivities vary greatly with reactor type, geographic location, climate conditions and microalgae species or even strains. The diatom Phaeodactylum tricornutum has been intensively investigated for its potential in large-scale production, due to its robustness and comparatively high growth rates and EPA content. Yet, most research have been performed in southern countries and with a single commercial P. tricornutum strain, while information about productivities at higher latitudes and of local strains is scarce. We examined the potential of the climate conditions in Bergen, western Norway for outdoor cultivation of P. tricornutum in flat panel photobioreactors and cultivated three different strains simultaneously, one commercial strain from Spain (Fito) and two local isolates (M28 and B58), to assess and compare their biomass and EPA productivities, and fatty acid (FA) profiles. The three strains possessed similar biomass productivities (average volumetric productivities of 0.20, 0.18, and 0.21 g L− 1 d− 1), that were lower compared to productivities reported from southern latitudes. However, EPA productivities differed between the strains (average volumetric productivities of 9.8, 5.7 and 6.9 mg L− 1 d− 1), due to differing EPA contents (average of 4.4, 3.2 and 3.1% of dry weight), and were comparable to results from Italy. The EPA content of strain Fito of 4.4% is higher than earlier reported for P. tricornutum (2.6–3.1%) and was only apparent under outdoor conditions. A principal component analysis (PCA) of the relative FA composition revealed strain-specific profiles. However, including data from laboratory experiments, revealed more significant differences between outdoor and laboratory-grown cultures than between the strains, and higher EPA contents in outdoor grown cultures.

show abstract

Section: Discussionmentioning

confidence: 99%

Comparing EPA production and fatty acid profiles of three Phaeodactylum tricornutum strains under western Norwegian climate conditions

et al. 2018

View full text Add to dashboard Cite

show abstract

“…During the outdoor cultivation of Nannochloropsis sp. in various pilot-scale photobioreactors a broad optimum for biomass concentrations was obtained [105] Predicted areal productivities for a higher specific absorption coefficients increase steeper compared to the values predicted for the lower specific absorption coefficient. In all scenarios higher productivities are predicted using a lower specific absorption coefficient.…”

Section: Projections To Outdoor Productivitymentioning

confidence: 86%

“…In another study done by the authors a daily averaged nett growth rate of 0.8 d -1 was obtained during the cultivation of Nannochloropsis sp. CCAP 211/78 in an outdoor vertical tubular photobioreactor [105]. This nett average growth rate was determined over 13 days with an average day length of 15.5 hours.…”

Section: Projections To Outdoor Productivitymentioning

confidence: 99%

See 1 more Smart Citation

Outdoor production of microalgae

Vree

Jeroen²

Self Cite

View full text Add to dashboard Cite

“…The average Yx,ph for the BC-systems was 0.22 g mol -1 for AL-BC and 0.32 g mol -1 for greenhouse placement (GH-BC) (for details see section 2.5.1.1). For TPBR reference scenarios the Yx,ph was estimated from data obtained from the AlgaePARC pilot facility data available in literature [47]. The Yx,ph for the reference scenarios using TPBR-systems is set at 0.45g mol -1 .…”

Section: Gh-tpbr Gh-bcmentioning

confidence: 99%

Industrial microalgae production for aquaculture hatcheries

Oostlander

View full text Add to dashboard Cite

Turbidostat operation of outdoor pilot-scale photobioreactors

Cited by 35 publications

References 46 publications

Comparing EPA production and fatty acid profiles of three Phaeodactylum tricornutum strains under western Norwegian climate conditions

Comparing EPA production and fatty acid profiles of three Phaeodactylum tricornutum strains under western Norwegian climate conditions

Outdoor production of microalgae

Industrial microalgae production for aquaculture hatcheries

Contact Info

Product

Resources

About