Effect of cooling in the night on the productivity and biochemical composition of Tetraselmis suecica

Michels, Michiel H.A.; Camacho-Rodríguez, J.; Vermuë, M.H.; Wijffels, René H.

doi:10.1016/j.algal.2014.11.002

Cited by 24 publications

(13 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tetraselmis sp (24 % dw) while the protein content was similar (~ 37 % dw). The high content of carbohydrates can be due to the accumulation of starch granules and seasonal variation as noted by Michels et al, (2014a) for cultures of Tetraselmis suecica maintained in green houses.…”

Section: Fractionation Processmentioning

confidence: 97%

“…In general, algae contain proteins, carbohydrates, lipids, pigments and ash (Trivedi et al, 2015). Although the composition varies greatly depending on the strain and cultivation conditions, averaged values for the two model organisms investigated in this thesis, Tetraselmis suecica (Michels et al, 2014a;Schwenzfeier et al, 2011) and…”

Section: Algae Diversity and Sustainabilitymentioning

confidence: 99%

“…Overall composition (DW) for the model organisms T. suecica (microalgae) and U. lactuca (macroalgae). Data from (Michels et al, 2014a;Schwenzfeier et al, 2011) and (De Pádua et al, 2004;Postma et al, 2018 (Ma et al, 2014), while other strains, such as Tetraselmis suecica can accumulate up to 45 % starch (Kermanshahi-pour et al, 2014). Cyanobacteria are well known to produce large quantities of poly-peptides and pigmented proteins (Olguín et al, 1994;Trautmann et al, 2016), whereas microalgae can reach up to 60 % protein content depending on the culture conditions (Becker, 2007).…”

Section: Algae Diversity and Sustainabilitymentioning

confidence: 99%

“…A stream of gas containing air and 5 % v/v CO 2 was supplied at a rate of 0.254 vvm to provide carbon source, mixing and pH control (pH 7.5). Walne medium was fed at a ratio of 8.8 mL L -1 medium (Michels et al, 2014a). After the end of the exponential phase, cultures were harvested by means of centrifugation (80 Hz, E 10, Evodos®, The Netherlands).…”

Section: Chemicals and Ionic Liquidmentioning

confidence: 99%

See 3 more Smart Citations

Biorefinery of functional biomolecules from algae

García¹

View full text Add to dashboard Cite

The disintegration of three industry relevant algae (Chlorella vulgaris, Neochloris oleoabundans and Tetraselmis suecica) was studied in a lab scale bead mill at different bead sizes (0.3 mm-1 mm). Cell disintegration, proteins and carbohydrates released into the water phase followed a first order kinetics. The process is selective towards proteins over carbohydrates during early stages of milling. In general, smaller beads led to higher kinetic rates, with a minimum specific energy consumption of ≤ 0.47 kWh kgDW-1 for 0.3 mm beads. After analysis of the stress parameters (stress number and stress intensity), it appears that optimal disintegration and energy usage for all strains occurs in the 0.3-0.4 mm range. During the course of bead milling, the native structure of the marker protein Rubisco was retained, confirming the mildness of the disruption process.

show abstract

Section: Fractionation Processmentioning

confidence: 97%

Section: Algae Diversity and Sustainabilitymentioning

confidence: 99%

Section: Algae Diversity and Sustainabilitymentioning

confidence: 99%

Section: Chemicals and Ionic Liquidmentioning

confidence: 99%

See 2 more Smart Citations

Biorefinery of functional biomolecules from algae

García¹

View full text Add to dashboard Cite

show abstract

“…Many microalgae lose culture performance due to nocturnal respiration when exposed to LD cycles (Acién Fernández et al, 2003;de Winter et al, 2017;He et al, 2015;Lacour et al, 2012;Mairet et al, 2011;Michels et al, 2014). Interestingly, no clear differences in maximum TAG yield on light were found between DN and continuous supplied light (Breuer et al (2014) found TAG yields on light of 0.16 g TAG molph -1 for the wildtype and 0.23 g TAG molph -1 for slm1 for continuous light experiments, calculations available in Supplementary file 4.4).…”

Section: Batch Cultivation Under Ld Cyclesmentioning

confidence: 99%

Photosynthetic efficiency in microalgal lipid production

Remmers¹

View full text Add to dashboard Cite

Lipid production in microalgae is highly dependent on the applied light intensity. However, for the EPA producing model-diatom Phaeodactylum tricornutum, clear consensus on the impact of incident light intensity on lipid productivity is still lacking. This study quantifies the impact of different incident light intensities on the biomass, TAG and EPA yield on light in nitrogen starved batch cultures of P. tricornutum. The maximum biomass concentration and maximum TAG and EPA contents were found to be independent of the applied light intensity. The lipid yield on light was reduced at elevated light intensities (>100 µmol m-2 s-1). The highest TAG yield on light (112 mg TAG molph-1) was found at the lowest light intensity tested (60 µmol m-2 s-1), which is still relatively low to values reported in literature for other algae. Furthermore, mass balance analysis showed that the EPA fraction in TAG may originate from photosynthetic membrane lipids.

show abstract

Investigation of lipid production by nitrogen-starved Parachlorella kessleri under continuous illumination and day/night cycles for biodiesel application

et al. 2017

View full text Add to dashboard Cite

This study aims to investigate the triacylglycerol (TAG) productivity of Parachlorella kessleri grown under continuous illumination and to investigate its metabolism in simulated day/night cycles in order to estimate the feasibility of a large-scale production in outdoor solar photobioreactors. The strain was chosen for its ability to accumulate large amounts of triacylglycerol during nitrogen starvation. Several protocols of nitrogen starvation were tested in continuous illumination as well as in simulated day/night cycles. Sudden and progressive nitrogen starvation conditions have enhanced the TAG concentration and productivity of P. kessleri reaching up to 48 dry wt% and 4.4 × 10 −3 kg m −2 day −1 , respectively. Microalgal cell metabolism was significantly affected by the day/night illumination cycles. The energy-rich compounds (TAGs and carbohydrates) were accumulated by P. kessleri during the photoperiods and partly consumed during the dark to sustain the microalgae vitality. This TAG oxidation ultimately led to a 26% decrease in TAG productivity in cultures exposed to day/night cycles compared to ones exposed to continuous illumination of equal 24-h average photon flux density. The results can dictate the optimal time for harvesting cells for recovering the largest amount of TAGs.

show abstract

Effect of cooling in the night on the productivity and biochemical composition of Tetraselmis suecica

Cited by 24 publications

References 35 publications

Biorefinery of functional biomolecules from algae

Biorefinery of functional biomolecules from algae

Photosynthetic efficiency in microalgal lipid production

Investigation of lipid production by nitrogen-starved Parachlorella kessleri under continuous illumination and day/night cycles for biodiesel application

Contact Info

Product

Resources

About