Extracellular aromatic biosurfactant produced by Tsukamurella pseudospumae and T. spumae during growth on n–hexadecane

Kügler, Johannes H.; Kraft, Axel; Heißler, Stefan; Muhle‐Goll, Claudia; Luy, Burkhard; Schwack, Wolfgang; Syldatk, Christoph; Hausmann, Rudolf

doi:10.1016/j.jbiotec.2015.06.424

Cited by 5 publications

(1 citation statement)

References 19 publications

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“…La señal de 1.90 a 2.00 ppm sugiere la presencia del -CH3 del grupo O-acetilo, mientras que en 2.00 -2.25 ppm indicó el -CH3 del grupo lateral de acetamida[99]. Señales amplias de 3.5 a 4.5 ppm se asignaron a los protones anulares que se observan en los polisacáridos[97,99,100]. La estructura del polisacárido fue confirmada por la señal en 5 -5.3 ppm asignada a protones anoméricos[99].Por lo tanto, el análisis de 1 H NMR apoyó el análisis FTIR e indicó que todos los BEs producidos por A. bouvetii UAM25 fueron lipo-heteropolisacáridos.Los análisis FTIR y 1 H NMR también sugieren que los BE producidos por A. bouvetii UAM25 entre ellos, sólo difieren en sus cadenas alifáticas.…”

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Contribución al estudio del bioemulsificante de Acinetobacter bouvetii UAM25 para su producción y aplicación en hidrocarburos

Rosa

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Contribución al estudio del bioemulsificante de Acinetobacter bouvetii UAM25 para su producción y aplicación en hidrocarburos

Rosa

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Significance of both alkB and P450 alkane-degrading systems in Tsukamurella tyrosinosolvens: proteomic evidence

Romanova

Markelova

Boulygina

et al. 2022

Appl Microbiol Biotechnol

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Stable bioemulsifiers are produced by Acinetobacter bouvetii UAM25 growing in different carbon sources

Rosa

Vázquez-Vázquez

Huerta‐Ochoa

et al. 2018

Bioprocess Biosyst Eng

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Acinetobacter species are identified as producing surface-active and emulsifying molecules known as bioemulsifiers. Production, characterization and stability of bioemulsifiers produced by Acinetobacter bouvetii UAM25 were studied. A. bouvetii UAM25 grew in three different carbon and energy sources: ethanol, a glycerol-hexadecane mixture and waste cooking oil in an airlift bioreactor, showing that bioemulsifier production was growth associated. The three purified bioemulsifiers were lipo-heteropolysaccharides of high molecular weight (4866 ± 533 and 462 ± 101 kDa). The best carbon source and energy for bioemulsifier production was wasted cooking oil, with a highest emulsifying capacity (76.2 ± 3.5 EU mg) as compared with ethanol (46.6 ± 7.1 EU mg) and the glycerol-hexadecane mixture (49.5 ± 4.2 EU mg). The three bioemulsifiers in our study displayed similar macromolecular structures, regardless of the nature (hydrophobic or hydrophilic) of the carbon and energy source. Bioemulsifiers did not decrease surface tension, but the emulsifying capacity of all of them was retained under extreme variation in salinity (0-50 g NaCl L), pH (3-10) and temperature (25-121 °C), indicative of remarkable stability. These findings contribute to understanding of the relationship between: production, physical properties, chemical composition and stability of bioemulsifiers for their potential applications in biotechnology, such as bioremediation of hydrocarbon-contaminated soil and water.

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Extracellular aromatic biosurfactant produced by Tsukamurella pseudospumae and T. spumae during growth on n–hexadecane

Cited by 5 publications

References 19 publications

Contribución al estudio del bioemulsificante de Acinetobacter bouvetii UAM25 para su producción y aplicación en hidrocarburos

Contribución al estudio del bioemulsificante de Acinetobacter bouvetii UAM25 para su producción y aplicación en hidrocarburos

Significance of both alkB and P450 alkane-degrading systems in Tsukamurella tyrosinosolvens: proteomic evidence

Stable bioemulsifiers are produced by Acinetobacter bouvetii UAM25 growing in different carbon sources

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