Comparative study on microbial enhanced oil recovery using mannosylerithritol lipids and surfactin

Andrade, Cristiano José de; Pastore, Gláucia Maria

doi:10.14419/ijsw.v4i2.6846

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…MELs have possible applications in the petrochemical industry and could be a promising agent for enhanced oil recovery, especially because they maintain stability and activity under extreme temperatures, pH and salt concentration values [87,95]. In addition, MEL-A improves the fluidity of biodiesel and hydrocarbon fuels at low temperatures, opening the possibility for MELs to be applied as fuel additives [85].…”

Section: Othersmentioning

confidence: 99%

Unlocking the Potential of Mannosylerythritol Lipids: Properties and Industrial Applications

de Almeida,

Nascimento,

Keković

et al. 2024

Fermentation

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Mannosylerythritol lipids (MELs), one of the most promising biosurfactants (BS), are glycolipids produced by yeasts or fungi, which have great environmental performance and high compatibility with the human body. MELs, besides working as typical surfactants, can form diverse structures when at or above the critical aggregation concentration (CAC), reduce the surface tension of water and other solutions, and be stable over a wide range of conditions. Among others, MELs present antimicrobial, antitumor, antioxidant and anti-inflammatory activities and skin and hair repair capacity, which opens possibilities for their use in applications from cosmetics and pharmaceutics to bioremediation and agriculture. However, their market share is still low when compared to other glycolipids, due to their less developed production process and higher production cost. This review gathers information on the potential applications of MELs mentioned in the literature since 1993. Furthermore, it also explores the current strategies being developed to enhance the market presence of MELs, in parallel with the ones developed for rhamnolipids and sophorolipids.

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Section: Othersmentioning

confidence: 99%

Unlocking the Potential of Mannosylerythritol Lipids: Properties and Industrial Applications

de Almeida,

Nascimento,

Keković

et al. 2024

Fermentation

View full text Add to dashboard Cite

show abstract

“…MELs have possible applications in the petrochemical industry and be a promising agent for enhanced oil recovery, especially due to maintaining stability and activity under extreme temperatures, pH and salt concentration values [77,85]. Besides that, MEL-A improves the fluidity of biodiesel and hydrocarbon fuels at low temperatures, opening the possibility for MELs to be applied as fuel additives [86].…”

Section: Othersmentioning

confidence: 99%

Unlocking the Potential of Mannosylerythritol Lipids: Properties and Industrial Applications

de Almeida,

Nascimento,

Kekovic

et al. 2024

Preprint

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Mannosylerythritol lipids (MELs), one of the most promising biosurfactants (BS), are glycolipids produced by yeasts or fungi, with great environmental performance and a high compatibility with the human body. MELs besides working as typical surfactants, can form diverse structures when in the critical aggregation concentration (CAC), reducing the surface tension of water and other solutions, and being stable over a wide range of conditions. Among others, MELs present anti-microbial, antitumor, antioxidant and anti-inflammatory activity, skin and hair repair capacity, which opens possibilities for their use in applications from cosmetics and pharmaceutics to bio-remediation and agriculture. However, their market share is still low when compared to other glycolipids, due to their less developed production process and higher production cost. This re-view gathers information on the potential applications of MELs mentioned on the literature since 1993. Furthermore, it is also explored the current strategies being developed to enhance the market presence of MELs, in parallel with the ones developed for rhamnolipids and sophorolipids.

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“…Surfactants are chemicals derived from petroleum that are widely used in many industrial sectors (KARSA, 1999;. Nowadays, there is great concern about either the negative impacts of synthetic surfactants on the environment or oil depletion (ANDRADE & PASTORE, 2016). Thus, it is essential to develop environmentally friendly alternatives, e.g.…”

Section: Introductionmentioning

confidence: 99%

Ultrafiltration of surfactin produced by Bacillus subtilis LB5a using cassava wastewater with low protein content

Zanotto¹

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The growing concern with environmental problems related to the use of nonbiodegradable petroleum-based surfactants, which are ecotoxic and dependent on the petrochemical industry (finite source), instigates the study of surfactants of microbial origin (biosurfactants), as to surfactin. In relation to the global costs to obtain biosurfactants, the production and recovery of biosurfactant are still the major obstacles that prevent the application of these compounds on a large scale. The recovery process of the biosurfactants represents approximately 60% of the costs of production, while the medium of culture between 30-50%. In this way, alternatives to reduce production costs (culture medium and purification techniques) in order to make the production of biosurfactants economically feasible on industrial scale are pursued by researches and industry. In this context, one of the most promising strategies is the use of agro-industrial residues as a culture medium associated with filtering systems (purification); for example, cassava wastewater (CWW) a residue from cassava flour production, that can be used for the production of surfactin and associated with the ultrafiltration process. Therefore, this strategy (CWW + ultrafiltration) represents an alternative for the production and purification of surfactina in a potentially viable and economical way. However, the use of cassava wastewater as a culture medium hampers the process of ultrafiltration (fouling and/or polarization in the membrane), mainly due to the proteins of the cassava wastewater itself as well as those inherently synthesized by the microorganism producing biosurfactant. Therefore, this work aims to evaluate the effect of different treatments in cassava wastewater for proteins removal, as well as the effect of these treatments on the production and purification (ultrafiltration) of surfactin. The treatments used to remove the proteins were: HCl pH2 and HCl pH3, (NH4) 2SO4 and C2HCl3O2 (TCA). The CWW treated with (NH4)2SO4 and C2HCl3O2 (TCA) did not allow the growth of Bacillus subtilis LB5a and consequent production of surfactin. On the other hand, treatments with HCl pH2 and pH3 presented a 749.80 mg/L and 625.82 mg/L production with 72 hours of fermentation, higher productivity values than the control (cassava wastewater without treatment) -598.56 mg/L. Considering the results of the previously experiments only the HCl pH2 treatment was subjected to ultrafiltration purification. The ultrafiltration step consisted of two steps with membranes of 100 and 50 kDa, respectively. The two-ultrafiltration steps provided a recovery of greater than 72% and purity of 51.49%. Therefore, it was possible to observe that the handling of the cassava wastewater with HCl pH2 increased the surfactin production and enabled the ultrafiltration of the surfactin directly from the culture medium presenting with good yields of recovery and purity.

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Comparative study on microbial enhanced oil recovery using mannosylerithritol lipids and surfactin

Cited by 5 publications

References 19 publications

Unlocking the Potential of Mannosylerythritol Lipids: Properties and Industrial Applications

Unlocking the Potential of Mannosylerythritol Lipids: Properties and Industrial Applications

Unlocking the Potential of Mannosylerythritol Lipids: Properties and Industrial Applications

Ultrafiltration of surfactin produced by Bacillus subtilis LB5a using cassava wastewater with low protein content

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