Lipids, fatty acids composition and carotenoids of &lt;i&gt;Chlorella vulgaris&lt;/i&gt; cultivated in hydroponic wastewater

Bertoldi, Fabiano Cleber; Sant’Anna, Ernani Sebastião; Braga, Maurício Villela da Costa; Oliveira, Jorge Luiz Barcelos

doi:10.3989/gya.2006.v57.i3.48

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…Typically, oil levels of 1-26% (dry weight basis) are quite common (Dunstan et al 1993). The composition and concentration of lipids in microalgae can be influenced by exposure to certain environmental conditions as variations in temperature, nutrients, salinity, pH, photoperiod, light intensity and light quality (Chen et al 2011;Fabiano et al 2006;Liu et al 2008;Romano et al 2000;Yamaberi et al 1998). …”

Section: Introductionmentioning

confidence: 96%

Imaging the accumulated intracellular microalgal lipids as a response to temperature stress

et al. 2017

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Over the last few decades, many scientists considered microalgae as promising actors for future biofuels because of the high lipid productivity inside their cells. Moreover, much attention has been paid to algal lipids as they can be used in biodiesel production. In this study, we optimized the different suitable conditions such as incubation time, incubation temperature, Dimethylesulfoxide and Nile red concentrations of the lipophilic fluorescence dye Nile red as an excellent and fast vital stain to detect and quantify intracellular lipids. This was achieved using the green alga Nannochloropsis salina. In addition, investigating the accumulation of lipid vesicles inside different isolated microalgal species as a response to temperature stress. Furthermore, the confocal laser scanning microscopy (LS510) for imaging and measuring the size and volume of the accumulated lipid vesicles was used.

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Section: Introductionmentioning

confidence: 96%

Imaging the accumulated intracellular microalgal lipids as a response to temperature stress

et al. 2017

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“…It is known that both Spirulina and Chlorella vulgaris are capable of synthesizing DHA, EPA, and other polyunsaturated fatty acids [51]. However, the concentration of EPA in Spirulina and Chlorella vulgaris is approximately 4 % of the total fat content [51], [206]- [208], and the concentration of DHA in Spirulina is approximately 3 % and in Chlorella vulgaris approximately 10 % of the total fat content [51], [207]- [209]. This is significantly lower compared to microorganisms of the class Labyrinthulomycetes, whose cells contain approximately 45-65 % of DHA and 5-15 % of EPA of the total fats [210], [211].…”

Section: ____________________________________________________________...mentioning

confidence: 99%

Sustaining a Mars Colony through Integration of Single-Cell Oil in Biological Life Support Systems

Spalviņš

Kusnere

Raita

2023

Environmental and Climate Technologies

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As humanity sets its sights on establishing a sustainable and prosperous colony on Mars, the main challenges to be overcome are ensuring a reliable and nutritious food supply for settlers, feedstock for 3D printing, fuel and pharmaceuticals. While various solutions for production of essential products on Mars have been proposed, there is growing interest in the use of microorganisms as the main production units. This scientific review article proposes a novel concept of using single cell oil (SCO) as a versatile feedstock for various applications in a bioregenerative life support system (BLSS) for space missions. The authors suggest using outputs from autotrophic systems, such as cyanobacteria biomass and oxygen, to cultivate SCO-producing microorganisms from the class Labyrinthulomycetes. The produced SCO can be used for food, fuel, 3D printing materials, and pharmaceuticals. This approach can potentially reduce the importance of carbohydrates in space foods, offering various benefits, including a reduction in food weight, simpler, lightweight, more compact bioreactors, launch cost reduction, potentially improved mental and cognitive performance, and reduced fatigue for the crew. The authors also suggest using SCO as the feedstock for the production of 3D printable filaments and resins and as a supplementary fuel source for space colonies. While the concept is hypothetical, the theoretical foundation is solid, and this approach could potentially become an important element required for the establishment of a successful Mars colony.

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“…Industrial and agricultural wastewater has been evaluated as an alternative nutrient-rich culture medium for the cultivation of microalgae. Alternative culture media that have been evaluated for the cultivation of microalgae include industrial wastewater such as POME which contains residues rich in nutrients for the growth of aquaculture biomass [21,22]. Figure 3 and Figure 4 show that POME with a high organic substance begins to degrade well by microalgae after 1-day cultivation followed by microalgae growth.…”

Section: Organic Substances Reduction In Pome After Exposure To Localmentioning

confidence: 99%

Organic Substances Reduction in Palm Oil Mill Effluent (POME) After Cultivation with Locally Isolated Microalgae

Elvitriana

Munir

Delvian

et al. 2021

ARFMTS

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This work aims to study the ability of locally isolated microalgae to reduce organic substances in Palm Oil Mill Effluent (POME) which was carried out on a laboratory scale. Inoculum with a concentration of 20% was cultivated into POME media with various concentration of LP100 (without dilution), LP75 (25% dilution), and LP50 (50% dilution) using aeration and continuous lighting for 15 days in vessels with a lighting intensity of 1300 lux. Biomass of microalgae were observed daily and analyzed in dry weight by means of spectrophotometry using 624 nm wavelength to get their growth by determining the content of algae biomass. The reduction of organic substances in POME was observed by measuring the COD, BOD phosphate, ammonium, nitrate, and fatty oil parameters every 3 hours with the standard method. Results show that the growth of microalgae occurred well in POME media at LP75 and LP50 concentrations with inoculum concentration of 20% under 1300 lux lighting intensity conditions with a continuous 24-hour lighting and aeration cycle that obtained biomass content of 0.92 and 1.08 g-DW/L, respectively. The presence of microalgae in POME at concentration of LP75 for 12 days reduced organic substances and nutrients reaching 80.74% - 99.70%. Some parameters that were reduced include BOD (99.35%), COD (89.57%), TSS (89.68%), Phosphate (97.70%), Ammonium (95.08%), Fatty Oil (99.70%), and Nitrates (80.74%). This study concludes that locally isolated microalgae have ability to treat POME safely for environment and as a growing medium for microalgae followed by a decrease in organic substances.

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Lipids, fatty acids composition and carotenoids of <i>Chlorella vulgaris</i> cultivated in hydroponic wastewater

Cited by 10 publications

References 18 publications

Imaging the accumulated intracellular microalgal lipids as a response to temperature stress

Imaging the accumulated intracellular microalgal lipids as a response to temperature stress

Sustaining a Mars Colony through Integration of Single-Cell Oil in Biological Life Support Systems

Organic Substances Reduction in Palm Oil Mill Effluent (POME) After Cultivation with Locally Isolated Microalgae

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