Influence of stress factors on growth and pigment production in three <i>Dunaliella</i> species cultivated outdoors in flat-plate photobioreactors

Hamed, Imen; Işık, Oya; Çimen, Burcu Ak; Uslu, Leyla; Kafkas, Ebru; Zarifikhosroshahi, Mozhgan

doi:10.1080/11263504.2020.1727985

Cited by 7 publications

(6 citation statements)

References 20 publications

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“…Our study found that D . salina cells rapidly reduced their volume with changes in salinity in a short time due to the lack of cell wall (Figure 1b), which is consistent with results reported by Hamed et al (2020). However, it is unexpected that the intracellular glycerol decreased when cells were exposed to a sudden salinity increase in a short time (Figure 3).…”

Section: Discussionsupporting

confidence: 91%

“…We also found that the carotenoid content in D. salina The survival rate of D. salina significantly decreased when its cells were subjected to severe a sudden rise in salinity from 80 to 160, 240 and 320 g•L −1 . Our study found that D. salina cells rapidly reduced their volume with changes in salinity in a short time due to the lack of cell wall (Figure 1b), which is consistent with results reported by Hamed et al (2020). However, it is unexpected that the intracellular glycerol decreased when cells were exposed to a sudden salinity increase in a short time (Figure 3).…”

Section: High Salinities For Cell Proliferation and β-Carotene Produc...supporting

confidence: 91%

“…Liu et al (2016) also found that both hypersaline conditions and strong light irradiation raised the content of β‐carotene, but the combined effect of them is more significant than that alone. It is worth noticing that the hypersaline condition may also play an inverse effect on the growth of Dunaliella salina , which is likely to be aggravated by strong light (Hamed et al, 2020). It has been reported that the photosynthetic and the respiration rate of D .…”

Section: Introductionmentioning

confidence: 99%

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The effect of salinity shock on the growth and rapid light curve of dunaliella salina

Qin

Zhang

et al. 2021

Aquaculture Research

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To confirm the effect of hypersaline shock on the growth of Dunaliella salina, the rapid light curves and chlorophyll fluorescence in D. salina with a NaCl upshift from 80 to 160, 240 and 320 g·L−1, respectively, were measured. Results showed that the photosynthetical saturated light of Dunaliella salina was downregulated to deal effectively with the severe NaCl increase from 80 to 160, 240 and 320 g·L−1. Dunaliella salina can deal effectively with the cells’ rapid increase in NaCl from 80 to 160 g·L−1 by heat dissipation to dissipate the excess energy. Salinity with 240–320 g·L−1 NaCl led to overproduction of QA− and the destruction of the PSII acceptor side, causing inhibition of photosynthetic electron transport. Dunaliella salina can also manage the abrupt rise in NaCl concentration from 80 to 240 g·L−1 by accumulating the amount of β‐carotene and glycerol per cell. However, Dunaliella salina cannot effectively manage the rapid increase in NaCl from 80 to 320 g·L−1 due to the stronger inhibition and impaired of the PSII acceptor side. It is suitable to shade D. salina cells to 500 and 800 μmol·m−2·s−1 when cells are exposed to a severe NaCl shift from 80 to 160 g·L−1 and 80 to 240 g·L−1. NaCl ranged from 80 to 240 g·L−1 favoured the growth and carotenoid content of D. salina; however, the survival rate and photosynthetic activity were lowered by the sudden increase in NaCl.

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Section: Discussionsupporting

confidence: 91%

Section: High Salinities For Cell Proliferation and β-Carotene Produc...supporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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The effect of salinity shock on the growth and rapid light curve of dunaliella salina

Qin

Zhang

et al. 2021

Aquaculture Research

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“…The highest concentration of total carotenoids and β‐carotene was observed in Dunaliella sp. with a PBR path length of 5 cm and salt concentration of 8% 127 . Further, an indoor helical‐tubular PBR (length‐75 m; ID‐12 mm; thickness‐2 mm) was designed for cultivation of D. salina .…”

Section: Cultivation Of Microalgae In Pbrs For High‐value‐added Productsmentioning

confidence: 99%

“…with a PBR path length of 5 cm and salt concentration of 8%. 127 Further, an indoor helical-tubular PBR (length-75 m; ID-12 mm; thickness-2 mm) was designed for cultivation of D. salina. The upper end of it was connected to the open pond and the lower end was connected to the airlift column.…”

Section: Wileyonlinelibrarycom/jctbmentioning

confidence: 99%

Microalgae cultivation: photobioreactors, CO₂ utilization, and value‐added products of industrial importance

Shekh

Sharma

Schenk

et al. 2021

J of Chemical Tech & Biotech

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Increasing world population, industrialization, and economic development demand more energy at a global scale, and this challenge is being met with the exploitation of fossil fuels that cause CO2 and CH4 emissions and contribute towards earth's rising temperature. Microalgae are considered potential sources for CO2 abatement and for combating food insecurity by ensuring a nutritional food supply for the sustainable living of an increasing population. The CO2 utilization potential of microalgae has been continuously researched for augmentation through various photobioreactor and open raceway pond designs and developments. Apart from recognition for their nutritional importance, microalgae are finding the place in the market as ‘functional foods’ due to their bioactive components. In view of this, the present study highlights the status and current attempts being made for photobioreactor development, CO2 sequestration, and the production of industrially important microalgal metabolites. This review also explains the factors responsible for microalgal growth and provides research needs and recommendations to make microalgal CO2 sequestration and value‐added compounds production an industrially competitive process. © 2021 Society of Chemical Industry (SCI).

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Challenges Assessment in Economic Algal Biofuel Production

Bhatt¹

2022

Clean Energy Production Technologies

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Influence of stress factors on growth and pigment production in three Dunaliella species cultivated outdoors in flat-plate photobioreactors

Cited by 7 publications

References 20 publications

The effect of salinity shock on the growth and rapid light curve of dunaliella salina

The effect of salinity shock on the growth and rapid light curve of dunaliella salina

Microalgae cultivation: photobioreactors, CO₂ utilization, and value‐added products of industrial importance

Challenges Assessment in Economic Algal Biofuel Production

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Influence of stress factors on growth and pigment production in three Dunaliella species cultivated outdoors in flat-plate photobioreactors

Cited by 7 publications

References 20 publications

The effect of salinity shock on the growth and rapid light curve of dunaliella salina

The effect of salinity shock on the growth and rapid light curve of dunaliella salina

Microalgae cultivation: photobioreactors, CO2 utilization, and value‐added products of industrial importance

Challenges Assessment in Economic Algal Biofuel Production

Contact Info

Product

Resources

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Microalgae cultivation: photobioreactors, CO₂ utilization, and value‐added products of industrial importance