Repetitive non-destructive extraction of lipids from Chlorella vulgaris grown under stress conditions

Mirizadeh, Shabnam; Casazza, Alessandro Alberto; Converti, Attílio; Nosrati, Masoud; Shojaosadati, Seyed Abbas

doi:10.1016/j.biortech.2021.124798

Cited by 8 publications

(3 citation statements)

References 35 publications

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“…On the other hand, the ash content in both the LTPNA 01 strain (22.5%) and the bloom material (33.2%) was remarkably higher than the values found in C. vulgaris (4.66%), A. platensis (6.37-7.94%) [38,44], and Chlorella pyrenoidosa (5.7%) [45].…”

Section: Discussionmentioning

confidence: 62%

Chemical Characterization of Microcystis aeruginosa for Feed and Energy Uses

et al. 2021

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Cyanobacterial blooms and strains absorb carbon dioxide, drawing attention to its use as feed for animals and renewable energy sources. However, cyanobacteria can produce toxins and have a low heating value. Herein, we studied a cyanobacterial strain harvested during a bloom event and analyzed it to use as animal feed and a source of energy supply. The thermal properties and the contents of total nitrogen, protein, carbohydrate, fatty acids, lipid, and the presence of cyanotoxins were investigated in the Microcystis aeruginosa LTPNA 01 strain and in a bloom material. Microcystins (hepatotoxins) were not detected in this strain nor in the bloom material by liquid chromatography coupled to mass spectrometry. Thermogravimetric analysis showed that degradation reactions (devolatilization) initiated at around 180 °C, dropping from approximately 90% to 20% of the samples’ mass. Our work showed that despite presenting a low heating value, both biomass and non-toxic M. aeruginosa LTPNA 01 could be used as energy sources either by burning or producing biofuels. Both can be considered a protein and carbohydrate source similar to some microalgae species as well as biomass fuel. It could also be used as additive for animal feed; however, its safety and potential adverse health effects should be further investigated.

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Section: Discussionmentioning

confidence: 62%

Chemical Characterization of Microcystis aeruginosa for Feed and Energy Uses

et al. 2021

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“…The percentage and (or) the maximum amount of equilibrium adsorbed (according to the values used and equations 1 and 3, the q e value is obtained) from the two drugs amoxicillin and naproxen by two adsorbents Agar/chitosan/SiO 2 and Agar/chitosan as surface adsorbents are reported in Table 1. This table shows the synthesized adsorbent's activity in removing amoxicillin (AMO) and naproxen (NAP) compared to other adsorbents [6,63,72–75] . The removal percentage of AMO and NAP using Agar/chitosan/SiO 2 and Agar/chitosan were higher than some adsorbents, except for the adsorbent of reference 6.…”

Section: Resultsmentioning

confidence: 98%

“…Naproxen and amoxicillin at a concentration of 40 mg/l were investigated using synthesized nanocomposite adsorbents. The maximum absorption peak appeared for naproxen 330 nm [62] and amoxicillin 272 nm [63] . The amount of 0.04 g of the mentioned pharmaceutical was selected and reached a volume of 1000 mL.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of Nanocomposite Based Polysaccharide and Performance Evaluation for the Removal of Various Drug from Pharmaceuticals Wastewater

Moradi,

Mhdavi,

Sedaghat

2024

ChemistrySelect

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The present study performed synthesis and characterization nanocomposite based polysaccharide Chitosan/Agar and Chitosan/Agar/SiO2 nanoparticles as adsorbents for remove amoxicillin and naproxen as the pharmaceuticals from an aqueous solution. The structure and morphology of nanocomposite were investigated using X‐ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X‐ray spectroscopy (EDX), Fourier‐transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM), Field Emission Scanning Electron Microscopes (FE‐SEM) and Dynamic light scattering (DLS). The removal performance of the Chitosan/Agar and Chitosan/Agar/SiO2 nanoparticles nanocomposite as adsorbent for removing amoxicillin and naproxen as sample of pharmaceutical industry effluents in aqueous solutions was investigated under different influence factors, including contact time, initial concentration, pH conditions and temperature. The maximum adsorption removal for amoxicillin with Agar/Chitosan and Agar/Chitosan/SiO2 nanocomposite at initial concentrations of 20 mg/l was 97.85 % and 87.9 %, respectively. With increasing temperature from 10 to 30°C, the removal efficiency for naproxen for both adsorbents is 99 %. The prepared nanocomposites showed good performance in adsorbing naproxen and amoxicillin. The maximum adsorption efficiency of nanocomposite was 99 % and 91 % for naproxen and amoxicillin, respectively. The optimum condition for pharmaceuticals removal by the nanocomposite was initial concentration: 20 mg/l, adsorbent dose: 0.05 g, contact time: 10 min, and pH=6.

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Cell disruption and lipid extraction from Chlorella species for biorefinery applications: Recent advances

Kim

Ilhamsyah

et al. 2022

Bioresource Technology

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Repetitive non-destructive extraction of lipids from Chlorella vulgaris grown under stress conditions

Cited by 8 publications

References 35 publications

Chemical Characterization of Microcystis aeruginosa for Feed and Energy Uses

Chemical Characterization of Microcystis aeruginosa for Feed and Energy Uses

Synthesis of Nanocomposite Based Polysaccharide and Performance Evaluation for the Removal of Various Drug from Pharmaceuticals Wastewater

Cell disruption and lipid extraction from Chlorella species for biorefinery applications: Recent advances

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