Characteristics of biosurfactant produced by Pseudomonas aeruginosa S6 isolated from oil-containing wastewater

Yin, Hua; Qiang, Jing; Yan, Jia; Peng, Hui; Qin, Huaming; Zhang, Na; He, Bin

doi:10.1016/j.procbio.2008.11.003

Cited by 157 publications

(92 citation statements)

References 27 publications

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“…The explanations for this phenomenon are (i) Complexing of Cd(II) ions with some cell surfactant protein changed surface charges of cells and membrane potential, thereby converted hydrophilic groups into hydrophobic groups on the cell surface and enhanced hydrophobicity of strains [28]; (ii) The production of extracellular polymeric substances (EPS) were restrained with addition of low concentration of Cd(II) ions. And it was confirmed that the total content of EPS showed a negative effect on the relative hydrophobicity [29]; (iii) It was found that biosurfactant was produced by P. aeruginosa [30], and addition of low concentration of Cd(II) ions increased production of biosurfactants, which promoted the transfer of hydrophobic substrate. The impact of high concentration of Cd(II) ions on hydrophobicity of P. aeruginosa during degradation of BDE-209 was ignorable, compared with what it had on degradation rate.…”

Section: Effect Of Cd(ii) Ions On Csh Of P Aeruginosamentioning

confidence: 81%

Effect of cadmium ion on biodegradation of decabromodiphenyl ether (BDE-209) by Pseudomonas aeruginosa

Shi

Yin

et al. 2013

Journal of Hazardous Materials

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Section: Effect Of Cd(ii) Ions On Csh Of P Aeruginosamentioning

confidence: 81%

Effect of cadmium ion on biodegradation of decabromodiphenyl ether (BDE-209) by Pseudomonas aeruginosa

Shi

Yin

et al. 2013

Journal of Hazardous Materials

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“…The ninhydrin reagent 0.05% w\v (methanol and water 1:1 v\v) heated at 100°C for 4 min used to detect amino acids and rhodamine 0.25% w\v (in 70% ethanol) to detect the presence of lipids (Yu et al, 2002). The anthrone reagent (1 g in 5 ml of sulfuric acid mixed with 95 ml of ethanol) was used to detect the presence of yellow spots which are indicative of glycolipid biosurfactant (Yin et al, 2009). The visualization of bands corresponding to the biosurfactant constituents were visualized in UV light (Yu et al, 2002;Yin et al, 2009).…”

Section: Biosurfactant Characterization By Thin-layer Chromatographymentioning

confidence: 99%

“…The anthrone reagent (1 g in 5 ml of sulfuric acid mixed with 95 ml of ethanol) was used to detect the presence of yellow spots which are indicative of glycolipid biosurfactant (Yin et al, 2009). The visualization of bands corresponding to the biosurfactant constituents were visualized in UV light (Yu et al, 2002;Yin et al, 2009). …”

Section: Biosurfactant Characterization By Thin-layer Chromatographymentioning

confidence: 99%

Production and characterization of biosurfactant isolated from Candida glabrata using renewable substrates

Lima¹,

Andrade²,

RodrÃguez³

et al. 2017

Afr. J. Microbiol. Res.

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The world market for biosurfactants has grown gradually. However, the lack of competitiveness with chemical surfactants due to high cost of production remains a concern. Considering the need to reduce the costs of production, the aim of this work was to study the production and structural characterization of a biosurfactant produced by a strain of yeast Candida glabrata UCP 1556. The lowcost medium containing agro-industrial wastes whey 40% (v/v) and 20% (v/v) corn steep liquor were used as substrates in submerged fermentation. Biosurfactant production was detected by surface tension, oil displacement test and Critical Micelle Concentration (CMC). The structural characterization was performed by Fourier transform infrared (FT-IR), gas chromatography-mass spectrometry (GC-MS) and ionic profile. The stability of emulsions and potential in reducing the viscosity also were investigated. The results showed that the biosurfactant reduced the surface tension to 28.8 mN/m with CMC of 2% and showed anionic profile. Additionally, the biosurfactant formed stable emulsions at temperature (0 to 120°C), pH (2 to 12) and NaCl (2 to 12%), reduced the viscosity of soybean oil (

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“…The CMC was determined by the dilution method by measuring the ST at each dilution, and then by tracing the surface of the tension curve as a function of the concentration of the solution of biosurfactant [25].…”

Section: Biosurfactant Functional Characterization and Applicationmentioning

confidence: 99%

Production and characterization of biosurfactant by free and immobilized cells fromOchrobactrum intermediumisolated from the soil of southern Algeria with a view to environmental application

Ferhat¹,

Alouaoui

Badis

et al. 2017

Biotechnology & Biotechnological Equipment

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In this paper, biosurfactant production by free and immobilized cells of Ochrobactrum intermedium has been studied. This bacterium strain was isolated from an Algerian crude oil-contaminated soil; hexadecane was used for the production as the sole carbon and energy source. The process was monitored by measuring the surface tension and emulsification index E24 for one week at 37 C and neutral pH. For the production by immobilized cells, the concentrations of sodium alginate, calcium chloride and biomass were optimized. Results showed that O. intermedium entrapped in calcium alginate beads is able to preserve its viability and produce biosurfactants but with an effect on the production kinetics due to diffusional limitations of the alginate beads with greater stability with up to 75%. The product biosurfactant reduced the surface tension below 33 and emulsification index were 68%-93% after 48 and 72 h with free and immobilized cells, respectively. Also, the product belongs to the family of glycolipids and showed stability in a wide range of pH (2-12), temperature (25-120 C), and to high salinity. Both products by strain O. intermedium, based on spectral features, have a chemical structure identical to that of glycolipids. The production yield of biosurfactant versus concentration of the hexadecane is 1292 g/g. Second, the surfactants are able to promote the solubility of polycyclic aromatic hydrocarbons (PAHs). Results show that the use of biosurfactant, produced by the isolated bacterial strain O. intermedium, obtained a better solubility of naphthalene and phenanthrene.

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Characteristics of biosurfactant produced by Pseudomonas aeruginosa S6 isolated from oil-containing wastewater

Cited by 157 publications

References 27 publications

Effect of cadmium ion on biodegradation of decabromodiphenyl ether (BDE-209) by Pseudomonas aeruginosa

Effect of cadmium ion on biodegradation of decabromodiphenyl ether (BDE-209) by Pseudomonas aeruginosa

Production and characterization of biosurfactant isolated from Candida glabrata using renewable substrates

Production and characterization of biosurfactant by free and immobilized cells fromOchrobactrum intermediumisolated from the soil of southern Algeria with a view to environmental application

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