Microstructures and functional groups of Nannochloropsis sp. cells with arsenic adsorption and lipid accumulation

Sun, Jing; Cheng, Jun; Yang, Zongbo; Li, Ké; Zhou, Junhu; Cen, Kefa

doi:10.1016/j.biortech.2015.07.041

Cited by 60 publications

(7 citation statements)

References 35 publications

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“…The effect of As(III) on Nannochloropsis sp. cells resulted in a slight increase in cell lipid content and a change in lipid profile, as the decrease in polyunsaturated fatty acids and the increase in short-chain saturated (C16:0, C18:0) and monounsaturated (C16:1, C18:1) fatty acids, was depicted [ 117 ]. Nickel at 0.5 mg/L caused a shift of fatty acid profile towards saturated fatty acids (C14:0, C16:0, C20:0) in Dunaliella salina and Nannochloropsis salina cells, also with the upshift of saturated C18:0 and unsaturated C18:2 for Nannochloropsis and C22:0 behenic acid for Dunaliella [ 118 ].…”

Section: Metal Stress As a Methods For Stimulation Of Bioproduct Symentioning

confidence: 99%

“…Composition of fatty acids (chain length, number of double bonds) defines the biodiesels produced from corresponding triglycerides in terms of their quality and properties (including cetane number, density, viscosity, lubricity, calorific value, NO x emissions) [ 119 , 120 , 121 ]. Therefore, metal stress can be applied to alter composition of fatty acids in microalgal cells and produce biodiesel of desirable quality and properties [ 117 ]. As a contrary, cultivation of Nannochloropsis limnetica and Trachydiscus minutus in the presence of zero-valent iron nanoparticles (nZVI) caused the decrease in saturated fatty acids (C14:0, C16:0, C18:0) and the increase in eicosapentaenoic acid (C20:5ω3) content in Nannochloropsis and Trachydiscus biomass [ 57 ].…”

Section: Metal Stress As a Methods For Stimulation Of Bioproduct Symentioning

confidence: 99%

“…could be accompanied with accumulation of cell neutral lipid content with increased levels of oleic (C18:1) acid [ 256 ]. Additionally, metal exposure can lead to modifications in fatty acid profiles in microalgal cells, thereby improving quality of biodiesel [ 117 ]. Finally, the uptake of metals (Cr, Mn, Fe, Co, Ni, Cu, Mo, Cd, Pb) from landfill leachate combined with hydrogen production in Chlamydomonas reinhardtii cultures, has been discussed [ 257 ].…”

Section: Strategy For Microalgal Production In the Presence Of Metmentioning

confidence: 99%

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Effect of Metals, Metalloids and Metallic Nanoparticles on Microalgae Growth and Industrial Product Biosynthesis: A Review

Miazek

Iwanek

Remacle

et al. 2015

IJMS

207

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Microalgae are a source of numerous compounds that can be used in many branches of industry. Synthesis of such compounds in microalgal cells can be amplified under stress conditions. Exposure to various metals can be one of methods applied to induce cell stress and synthesis of target products in microalgae cultures. In this review, the potential of producing diverse biocompounds (pigments, lipids, exopolymers, peptides, phytohormones, arsenoorganics, nanoparticles) from microalgae cultures upon exposure to various metals, is evaluated. Additionally, different methods to alter microalgae response towards metals and metal stress are described. Finally, possibilities to sustain high growth rates and productivity of microalgal cultures in the presence of metals are discussed.

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Section: Metal Stress As a Methods For Stimulation Of Bioproduct Symentioning

confidence: 99%

Section: Metal Stress As a Methods For Stimulation Of Bioproduct Symentioning

confidence: 99%

Section: Strategy For Microalgal Production In the Presence Of Metmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Metals, Metalloids and Metallic Nanoparticles on Microalgae Growth and Industrial Product Biosynthesis: A Review

Miazek

Iwanek

Remacle

et al. 2015

IJMS

207

View full text Add to dashboard Cite

show abstract

“…Heavy metals such as As, Cd, Cr, Pb, and Hg are microalgae toxic compounds in nature. Low toxic levels of heavy metals can stimulate the cellular metabolism of microalgae by hormesis mechanism [85]. Certain cyanobacteria, like Oscillatoria, Spirogyra, Phormidium, and Anabaena, are natural for their tolerance to heavy metal stress in water contamination with heavy metals [86].…”

Section: Mechanism Of Microalgae Towards Heavy Metal Compoundsmentioning

confidence: 99%

Emerging role of microalgae in heavy metal bioremediation

et al. 2021

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Microalgae have been publicized for their diversified dominance responsiveness and bioaccumulation potential toward pollutants in an ecosystem. Also, algal's incredible capability as biocatalysts in environmental appliances has been well elucidated owing to their robustness and simple nutritional demand. Additionally, microalgae can deliver various collections of bio-based chemical compounds helpful for diversified applications, especially as green alternatives. The environment has been contaminated with various polluting agents; one principal polluting agent is heavy metals which are carcinogenic and show toxicity even in minimal quantity, cause unsatisfactory threats to the environmental ecosystem, including human and animal health. There is a prominent tendency to apply microalgae in the phytoremediation of heavy metals compounds because of its vast benefits, including great accessibility, cost-effective, excellent toxic metal eliminating efficiency, and nontoxic to the ecosystem. This review uncovers the most recent advancements and mechanisms associated with the bioremediation process and biosorption interaction of substantial harmful synthetic compounds processing microalgae species. Furthermore, future challenges and prospects in the utilization of microalgae in heavy metals bioremediation are also explored. The current review aims to give valuable information to aid the advancement of robust and proficient future microalgae-based heavy metal bioremediation innovations and summarizing a wide range of benefits socioeconomic scope to be employed in heavy metal compound removal in environment system.

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“…However, other heavy metals such as As, Cd, Cr, Pb, and Hg are highly toxic to microalgae. Due to the hormesis phenomenon, low concentrations of toxic heavy metals can stimulate the growth and metabolism of microalgae [ 4 ]. Zinc is a masculine element that balances copper in the body and is also essential for male reproductive activity [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Zn(II) from Seawater Solution by the Microalgal Biomass of Tetraselmis marina AC16-MESO

Huarachi-Olivera

Mata

Valdés

et al. 2021

IJMS

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Biosorption refers to a physicochemical process where substances are removed from the solution by a biological material (live or dead) via adsorption processes governed by mechanisms such as surface complexation, ion exchange, and precipitation. This study aimed to evaluate the adsorption of Zn2+ in seawater using the microalgal biomass of Tetraselmis marina AC16-MESO “in vivo” and “not alive” at different concentrations of Zn2+ (0, 5, 10, and 20 mg L−1) at 72 h. Analysis was carried out by using the Langmuir isotherms and by evaluating the autofluorescence from microalgae. The maximum adsorption of Zn2+ by the Langmuir model using the Qmax parameter in the living microalgal biomass (Qmax = 0.03051 mg g−1) was more significant than the non-living microalgal biomass of T. marine AC16-MESO (Qmax = 0.02297 mg g−1). Furthermore, a decrease in fluorescence was detected in cells from T. marina AC16-MESO, in the following order: Zn2+ (0 < 20 < 5 < 10) mg L−1. Zn2+ was adsorbed quickly by living cells from T. marine AC16-MESO compared to the non-living microalgal biomass, with a decrease in photosystem II activities from 0 to 20 mg L−1 Zn2+ in living cells.

show abstract

Microstructures and functional groups of Nannochloropsis sp. cells with arsenic adsorption and lipid accumulation

Cited by 60 publications

References 35 publications

Effect of Metals, Metalloids and Metallic Nanoparticles on Microalgae Growth and Industrial Product Biosynthesis: A Review

Effect of Metals, Metalloids and Metallic Nanoparticles on Microalgae Growth and Industrial Product Biosynthesis: A Review

Emerging role of microalgae in heavy metal bioremediation

Biosorption of Zn(II) from Seawater Solution by the Microalgal Biomass of Tetraselmis marina AC16-MESO

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