Differences in adaptation to light and temperature extremes of Chlorella sorokiniana strains isolated from a wastewater lagoon

Krimech, Aafaf; Helamieh, Mark; Wulf, Melina; Krohn, Ines; Riebesell, Ulf; Cherifi, Ouafa; Mandi, Laila; Kerner, Martin

doi:10.1016/j.biortech.2022.126931

Cited by 12 publications

(2 citation statements)

References 46 publications

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“…The circular pond was the first man-made water source used to cultivate microalgae. The growing method known as ‘circle farming’ gets its name from the circular configuration of the culture tank, which is between 30 and 70 centimeters in depth and 45 meters in width and features a rotating agitator in the pond’s exact center [ 35 ]. The raceway pond is also becoming one of the most well-liked open pond designs for microalgae cultivation.…”

Section: Importance Of Algae As a Biofuelmentioning

confidence: 99%

Bioengineering strategies of microalgae biomass for biofuel production: recent advancement and insight

Sundaram,

Rajendran,

Gnanasekaran

et al. 2023

Bioengineered

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Algae-based biofuel developed over the past decade has become a viable substitute for petroleum-based energy sources. Due to their high lipid accumulation rates and low carbon dioxide emissions, microalgal species are considered highly valuable feedstock for biofuel generation. This review article presented the importance of biofuel and the flaws that need to be overcome to ensure algae-based biofuels are effective for future-ready bioenergy sources. Besides, several issues related to the optimization and engineering strategies to be implemented for microalgae-based biofuel derivatives and their production were evaluated. In addition, the fundamental studies on the microalgae technology, experimental cultivation, and engineering processes involved in the development are all measures that are commendably used in the pre-treatment processes. The review article also provides a comprehensive overview of the latest findings about various algae species cultivation and biomass production. It concludes with the most recent data on environmental consequences, their relevance to global efforts to create microalgae-based biomass as effective biofuels, and the most significant threats and future possibilities.

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Section: Importance Of Algae As a Biofuelmentioning

confidence: 99%

Bioengineering strategies of microalgae biomass for biofuel production: recent advancement and insight

Sundaram,

Rajendran,

Gnanasekaran

et al. 2023

Bioengineered

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show abstract

“…Another abiotic parameter that impacts the FA composition is the intensity and spectral composition of light (Hultberg et al, 2014; Nzayisenga et al, 2020; Shu et al, 2012). A recent study showed that different light intensities strongly impact the PUFA and pigment composition in the microalga Chlorella sorokiniana (Krimech et al, 2022). Moreover, blue and green light can influence FA composition and content in microalgae (Hultberg et al, 2014; Shu et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Blue‐green light is required for a maximized fatty acid unsaturation and pigment concentration in the microalga Acutodesmus obliquus

Helamieh

Reich

Bory

et al. 2022

Lipids

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Blue‐green light is known to maximize the degree of fatty acid (FA) unsaturation in microalgae. However, knowledge on the particular waveband responsible for this stimulation of FA desaturation and its impact on the pigment composition in microalgae remains limited. In this study, Acutodesmus obliquus was cultivated for 96 h at 15°C with different light spectra (380–700 nm, 470–700 nm, 520–700 nm, 600–700 nm, and dark controls). Growth was monitored daily, and qualitative characterization of the microalgal FA composition was achieved via gas chromatography coupled with electron impact ionization mass spectrometry (GC‐EI/MS). Additionally, a quantitative analysis of microalgal pigments was performed using high‐performance liquid chromatography with diode array detection (HPLC‐DAD). Spectra that included wavelengths between 470 and 520 nm led to a significantly higher percentage of the polyunsaturated fatty acids (PUFA) 18:3 and 16:4, compared to all other light conditions. However, no significant differences between the red light cultivations and the heterotrophic dark controls were observed for the FA 18:3 and 16:4. These results indicate, that exclusively the blue‐green light waveband between 470 and 520 nm is responsible for a maximized FA unsaturation in A. obliquus. Furthermore, the growth and production of pigments were impaired if blue‐green light (380–520 nm) was absent in the light spectrum. This knowledge can contribute to achieving a suitable microalgal pigment and FA composition for industrial purposes and must be considered in spectrally selective microalgae cultivation systems.

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Diverse thermal responses of the growth, photosynthesis, lipid and fatty acids in the terrestrial oil-producing microalga Vischeria sp. WL1

Wang,

Gao,

Wang

et al. 2023

J Appl Phycol

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Differences in adaptation to light and temperature extremes of Chlorella sorokiniana strains isolated from a wastewater lagoon

Cited by 12 publications

References 46 publications

Bioengineering strategies of microalgae biomass for biofuel production: recent advancement and insight

Bioengineering strategies of microalgae biomass for biofuel production: recent advancement and insight

Blue‐green light is required for a maximized fatty acid unsaturation and pigment concentration in the microalga Acutodesmus obliquus

Diverse thermal responses of the growth, photosynthesis, lipid and fatty acids in the terrestrial oil-producing microalga Vischeria sp. WL1

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