Optimization of Rhodomonas sp. under continuous cultivation for industrial applications in aquaculture

Oostlander, P.C.; Houcke, Jasper van; Wijffels, René H.; Barbosa, María J.

doi:10.1016/j.algal.2020.101889

Cited by 30 publications

(29 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The overall trend of increased biomass productivity with increasing total photon flux density is equal to that described for other algae strains [47,50]. Values observed in literature for a vertical tubular reactor under Dutch summer outdoor conditions described 3-4x higher areal biomass productivities of (10.6 -24.4 g m (Figure 2A), Volumetric production rate ( Figure 2B) and biomass yield on light ( Figure 2C Biomass productivities (up to 1.4 g l -1 d -1 or 60 mg l -1 hlight -1 ) at lab scale have recently been reported [96]. It is therefore likely that with Rhodomonas sp.…”

Section: Biomass Productivitymentioning

confidence: 52%

“…In lab-scale experiments Rhodomonas sp. has shown higher biomass concentrations (over 1.4 g l -1 ), biomass productivities (up to 60 mg l -1 h -1 ) and biomass yields on light (up to 0.91 g mol -1 ) than the values found at pilot-scale [96] . Laboratory experiments with Rhodomonas sp.…”

Section: Biomass Yield On Lightmentioning

confidence: 76%

“…Rhodomonas sp. has not been produced at lab scales with light intensities over 600 µmol m -2 s -1 [96]. Increasing the range of light conditions tested at lab scale could provide valuable information on the biomass yield on light and suitable biomass concentration for these light conditions.…”

Section: Biomass Yield On Lightmentioning

confidence: 99%

“…For industrial production of microalgae, productivity, biomass yield on light and fatty acid composition are influenced by light intensity and cultivation temperature. The combined effect of these two parameters under continuous conditions, with both light and temperature at a constant level for 24h day -1 , has recently been described in detail [96]. Daily fluctuation of these parameters could influence the biomass composition significantly as cell components are used for energy storage [26,34,36].…”

Section: Introductionmentioning

confidence: 99%

“…[33, 59-61, 67, 96]. We recently published advancements in continuous cultivation of the strains in lab-scale photobioreactors [96]. As a next step we would like to demonstrate production at larger [67,68].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Industrial microalgae production for aquaculture hatcheries

Oostlander

View full text Add to dashboard Cite

Section: Biomass Productivitymentioning

confidence: 52%

Section: Biomass Yield On Lightmentioning

confidence: 76%

Section: Biomass Yield On Lightmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Industrial microalgae production for aquaculture hatcheries

Oostlander

View full text Add to dashboard Cite

Effect of light quality and quantity on productivity and phycoerythrin concentration in the cryptophyte Rhodomonas sp.

et al. 2021

View full text Add to dashboard Cite

The cryptophyte Rhodomonas sp. is a potential feed source for aquaculture live feed and resource for phycoerythrin (PE) production. This research investigates the influence of light, both quality and quantity, on the biomass productivity, composition and growth rate of Rhodomonas sp. The incident light intensity used in the experiments was 50 μmolphotons m−2 s−1, irrespective of the colour of the light, and cultivation took place in lab-scale flat-panel photobioreactors in turbidostat mode. The highest productivity in volumetric biomass (0.20 gdry weight L−1 day−1), measured under continuous illumination, was observed under green light conditions. Blue and red light illumination resulted in lower productivities, 0.11 gdry weight L−1 day−1 and 0.02 g L−1 day−1 respectively. The differences in production are ascribed to increased absorption of green and blue wavelength by phycoerythrin, chlorophyll and carotenoids, causing higher photosynthetically usable radiation (PUR) from equal photosynthetically absorbed irradiance (PAR). Moreover, phycoerythrin concentration (281.16 mg gDW−1) was stimulated under red light illumination. Because photosystem II (PSII) absorbs poorly red light, the algae had to induce more pigments in order to negate the lower absorption per unit pigment of the incident available photons. The results of this study indicate that green light can be used in the initial growth of Rhodomonas sp. to produce more biomass and, at a later stage, red light could be implemented to stimulate the synthesis of PE. Fourier-transform infrared spectroscopy (FTIR) analysis demonstrated a significant difference between the cells under different light quality, with higher contents of proteins for samples of Rhodomonas sp. cultivated under green light conditions. In comparison, higher carbohydrate contents were observed for cells that were grown under red and blue light.

show abstract

Effect of salinity and pH on growth, phycoerythrin, and non-volatile umami taste active compound concentration of Rhodomonas salina using a D-optimal design approach

et al. 2021

View full text Add to dashboard Cite

The cryptophyte Rhodomonas salina is widely used in aquaculture due to its high nutritional profile. This study aims to investigate the effect of salinity and pH on the growth, phycoerythrin concentrations, and concentrations of non-volatile umami taste active compounds of R. salina, using a design of experiment approach. Rhodomonas salina was cultivated in a flat-panel photobioreactor in turbidostat mode in a range of salinity (20–40 ‰) and pH (6.5–8.5). The strain was able to grow steadily under all conditions, but the optimal productivity of 1.17 g dry weight L−1 day−1 was observed in salinity 30 ‰ and pH 7.5. The phycoerythrin concentration was inversely related to productivity, presenting higher values in conditions that were not optimal for the growth of R. salina, 7% of dry weight at salinity 40 ‰, and pH 8.5. The identification of the umami taste of R. salina was based on the synergistic effect of umami compounds 5′-nucleotides (adenosine 5′-monophosphate, guanosine 5′-monophosphate, inosine 5′-monophosphate) and free amino acids (glutamic and aspartic acids), using the equivalent umami concentration (EUC). The results indicated that an increase in pH induces the accumulation of 5′-nucleotides, resulting in an EUC of 234 mg MSG g−1 at a salinity of 40 and pH 8.5. The EUC values that were observed in R. salina were higher compared to other aquatic animals, a fact that makes R. salina promising for further research and application in the food and feed sectors.

show abstract

Optimization of Rhodomonas sp. under continuous cultivation for industrial applications in aquaculture

Cited by 30 publications

References 43 publications

Industrial microalgae production for aquaculture hatcheries

Industrial microalgae production for aquaculture hatcheries

Effect of light quality and quantity on productivity and phycoerythrin concentration in the cryptophyte Rhodomonas sp.

Effect of salinity and pH on growth, phycoerythrin, and non-volatile umami taste active compound concentration of Rhodomonas salina using a D-optimal design approach

Contact Info

Product

Resources

About