ζ-Potential of n-Alkane Emulsion Droplets and Its Role in Substrate Transport into Yeast Cells

Komarov, E. V.; Ganin, P. G.

doi:10.1023/b:abim.0000025951.89252.a3

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Most hydrocarbon-degrading bacteria excrete biosurfactants, amphiphilic molecules of diverse chemical nature, which improves the ability of microbial cells to use hydrophobic compounds as growth substrates [12,13]. Surfactants not only affect substrates, increasing or in some cases decreasing their bioavailability [14][15][16], but also have an impact on microbial cells, evoking changes in their hydrophobicity and surface charge matrices [17]. Zhang and Miller [18] found that surfactant bound to bacteria changed the surface cell hydrophobicity and thus altered cells' affinity to the hydrophobic substrate, increasing uptake and biodegradation.…”

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Biodegradation of n-hexadecane by bacterial strains B1 and B2 isolated from petroleum-contaminated soil

et al. 2012

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Two hydrocarbon-biodegrading bacterial strains, B1 and B2, were isolated from petroleum-contaminated soil collected from Tianjin, China. The strains were identified as Pseudomonas aeruginosa (B1) and Acinetobacter junii (B2). The degradation rate of n-hexadecane by B1 and B2 reached 96% and 78% respectively after 7 days, though the strains employed different mechanisms of degradation. The results showed that B2 was not able to use glucose as carbon source. B1 could produce glycolipid surfactants using glucose as the carbon source, according to the results of blue agar plate analysis and thin layer chromatography (TLC), and the bacterial culture of B1 had a high oil discharge and emulsification activity. Both B1 and B2 could produce biosurfactants with hexadecane as the sole carbon source, but their modes of action were different. The carbon source was found to affect the cell surface hydrophobicity. Cell surface hydrophobicity was poor with glucose as the carbon source, but enhanced when hexadecane was used as the carbon source.

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confidence: 99%

Biodegradation of n-hexadecane by bacterial strains B1 and B2 isolated from petroleum-contaminated soil

et al. 2012

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“…Surfactants do not only affect substrates themselves, increasing or in some cases lowering their bioavailability but also have an impact on microbial cells, evoke changes in their hydrophobicity and surface charge (Neu 1996;Komarov and Ganin 2004). Herman et al (1997) suggested that the addition of rhamnolipid biosurfactant in concentrations below CMC brought about the aggregation of Pseudomonas aeruginosa cells which manifested in decreased biodegradation rate of residual hexadecane entrapped in porous matrixes.…”

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confidence: 99%

Adsorption of Sodium Dodecylbenzenesulphonate (SDBS) on Candida maltosa EH 15 Strain: Influence on Cell Surface Hydrophobicity and n-alkanes Biodegradation

Chrzanowski

Owsianiak

Wyrwas

et al. 2008

Water Air Soil Pollut

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The effect of exogenously added sodium dodecylbenzenesulphonate (SDBS) surfactant on biodegradation of a mixture of straight-chain aliphatic hydrocarbons (dodecane and hexadecane) and resulting cell surface hydrophobicity changes of Candida maltosa EH 15 were investigated. Results indicated that up to 75 mg/L SDBS improves the biodegradation potential of examined yeast. A decrease in hydrophobicity was observed when SDBS was supplemented in higher concentrations, having strong impact on biodegradation rates. Phase distribution of surfactant molecules was investigated using methylene blue active substances method (MBAS), accompanied by surface and interfacial tension measurements. Studies showed that portion of SDBS molecules adsorbed on cell surface may play significant role in interaction between anionic surfactant and yeast cells, having influence on biodegradation rates.

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Untersuchungen zum Einfluss elektrokinetischer Wechselwirkungen auf die Adsorptionsmechanismen bei der Tiefenfiltration

Sartor

Kaschek

Mavrov

et al. 2008

Chemie Ingenieur Technik

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ζ-Potential of n-Alkane Emulsion Droplets and Its Role in Substrate Transport into Yeast Cells

Cited by 4 publications

References 5 publications

Biodegradation of n-hexadecane by bacterial strains B1 and B2 isolated from petroleum-contaminated soil

Biodegradation of n-hexadecane by bacterial strains B1 and B2 isolated from petroleum-contaminated soil

Adsorption of Sodium Dodecylbenzenesulphonate (SDBS) on Candida maltosa EH 15 Strain: Influence on Cell Surface Hydrophobicity and n-alkanes Biodegradation

Untersuchungen zum Einfluss elektrokinetischer Wechselwirkungen auf die Adsorptionsmechanismen bei der Tiefenfiltration

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