Polycyclic aromatic hydrocarbon-emulsifier protein produced by Aspergillus brasiliensis (niger) in an airlift bioreactor following an electrochemical pretreatment

Sánchez-Vázquez, Victor; Shirai, Kohji; González, Ignacio; Gutiérrez-Rojas, M.

doi:10.1016/j.biortech.2018.02.043

Cited by 8 publications

(13 citation statements)

References 34 publications

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“…The mentioned metabolic responses are directly associated with the electric field application and not with the pH alterations, as it was demonstrated in previous work (Velasco-Alvarez et al 2011). Sánchez-Vázquez et al (2018) proposed A. brasiliensis, grown on perlite and pre-treated in presence on electric field, as a supported biological catalyst (BC), for both emulsified hexadecane degradation and emulsifier protein (EP) production, in liquid culture. In this way, the BC produced in the three sections (anodic, middle, and anodic) of the electrochemical cell were separately transferred to an airlift bioreactor to evaluate each one metabolic capability.…”

Section: Physiological Response Of Aspergillus Brasiliensis Growing On Perlite As Porous Supportmentioning

confidence: 72%

Biotechnological processes improved with electric fields: the importance of operational parameters selection

Gómez-Flores¹,

Velasco-Alvarez²,

González³

et al. 2020

Rev.Mex.Ing.Quim.

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Section: Physiological Response Of Aspergillus Brasiliensis Growing On Perlite As Porous Supportmentioning

confidence: 72%

Biotechnological processes improved with electric fields: the importance of operational parameters selection

Gómez-Flores¹,

Velasco-Alvarez²,

González³

et al. 2020

Rev.Mex.Ing.Quim.

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“…Emulsions with low compaction and large globules generally show reduced stability [ 193 ]. An important characteristic in the emulsion stabilization is the adsorption of the emulsifier at the liquid–liquid interface [ 194 ].…”

Section: Screening Of Biosurfactant-producing Fungi: Methodologies and Characterizationmentioning

confidence: 99%

“…The amount of inoculum supplied is about 3–10% of the working volume of the bioreactor, and it is expected that a larger volume can minimize the lag phase and produce a larger amount of biomass, which reduces the process time, consequently, the productivity of the bioreactor is increased [ 260 ]. Pre-treatments applied during inoculum preparation, such as application of an electric field after the development of Aspergillus brasiliensis spores in an electrochemical bioreactor, allowed the increase in production of bioemulsifier by 19.5% [ 194 ]. This was due to the fact that electric current promotes changes in the cell membrane and induces gene expression associated with the hydrophobin proteins that facilitates substrate uptake [ 194 ].…”

Section: New Production Technologiesmentioning

confidence: 99%

“…Pre-treatments applied during inoculum preparation, such as application of an electric field after the development of Aspergillus brasiliensis spores in an electrochemical bioreactor, allowed the increase in production of bioemulsifier by 19.5% [ 194 ]. This was due to the fact that electric current promotes changes in the cell membrane and induces gene expression associated with the hydrophobin proteins that facilitates substrate uptake [ 194 ].…”

Section: New Production Technologiesmentioning

confidence: 99%

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Fungal biosurfactants, from nature to biotechnological product: bioprospection, production and potential applications

Silva

Banat

Giachini

et al. 2021

Bioprocess Biosyst Eng

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Biosurfactants are in demand by the global market as natural commodities that can be added to commercial products or use in environmental applications. These biomolecules reduce the surface/interfacial tension between fluid phases and exhibit superior stability to chemical surfactants under different physico-chemical conditions. Biotechnological production of biosurfactants is still emerging. Fungi are promising producers of these molecules with unique chemical structures, such as sophorolipids, mannosylerythritol lipids, cellobiose lipids, xylolipids, polyol lipids and hydrophobins. In this review, we aimed to contextualize concepts related to fungal biosurfactant production and its application in industry and the environment. Concepts related to the thermodynamic and physico-chemical properties of biosurfactants are presented, which allows detailed analysis of their structural and application. Promising niches for isolating biosurfactant-producing fungi are presented, as well as screening methodologies are discussed. Finally, strategies related to process parameters and variables, simultaneous production, process optimization through statistical and genetic tools, downstream processing and some aspects of commercial products formulations are presented.

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“…Fungal strains produce these metabolites to promote their survival, growth and protection in diverse environments. However, this ecological potential to colonize and/or remediate environments can be enhanced when the use of these prototypes is exploited through biotechnological processes [8,32].…”

Section: Introductionmentioning

confidence: 99%

Fungal bioproducts for petroleum hydrocarbons and toxic metals remediation: recent advances and emerging technologies

Silva

Banat

Robl

et al. 2022

Bioprocess Biosyst Eng

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Petroleum hydrocarbons and toxic metals are sources of environmental contamination and are harmful to all ecosystems. Fungi have metabolic and morphological plasticity that turn them into potential prototypes for technological development in biological remediation of these contaminants due to their ability to interact with a specific contaminant and/or produced metabolites. Although fungal bioinoculants producing enzymes, biosurfactants, polymers, pigments and organic acids have potential to be protagonists in mycoremediation of hydrocarbons and toxic metals, they can still be only adjuvants together with bacteria, microalgae, plants or animals in such processes. However, the sudden accelerated development of emerging technologies related to the use of potential fungal bioproducts such as bioinoculants, enzymes and biosurfactants in the remediation of these contaminants, has boosted fungal bioprocesses to achieve higher performance and possible real applications. In this review, we explore scientific and technological advances in bioprocesses related to the production and/or application of these potential fungal bioproducts when used in remediation of hydrocarbons and toxic metals from an integral perspective of biotechnological process development. In turn, it sheds light to overcome existing technological limitations or enable new experimental designs in the remediation of these and other emerging contaminants.

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Polycyclic aromatic hydrocarbon-emulsifier protein produced by Aspergillus brasiliensis (niger) in an airlift bioreactor following an electrochemical pretreatment

Cited by 8 publications

References 34 publications

Biotechnological processes improved with electric fields: the importance of operational parameters selection

Biotechnological processes improved with electric fields: the importance of operational parameters selection

Fungal biosurfactants, from nature to biotechnological product: bioprospection, production and potential applications

Fungal bioproducts for petroleum hydrocarbons and toxic metals remediation: recent advances and emerging technologies

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