TY  - JOUR
AU  - Rikalović, Milena
AU  - Abdel-Mawgoud, Ahmad Mohammad
AU  - Déziel, Eric
AU  - Gojgić-Cvijović, Gordana
AU  - Nestorović, Zorica
AU  - Vrvić, Miroslav
AU  - Karadžić, Ivanka
PY  - 2013
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1374
AB  - A comparative analysis of rhamnolipids from environmental isolates of Pseudomonas aeruginosa was undertaken to evaluate strain-specific rhamnolipid fingerprints obtained under different growth conditions. Environmental isolates of P. aeruginosa produced rhamnolipids on different types of substrates, including cheap and renewable sources like sunflower oil from deep fryers and sunflower oil mill effluent. Rhamnolipids were monitored by high-performance liquid chromatography-electrospray ionization interface mass spectrometry, which allowed fast and reliable identification and quantification of the congeners present. The highest concentration of total rhamnolipids of 3.33 g/l was obtained by the strain P. aeruginosa 67, recovered from petroleum contaminated soil, and strains D1 (1.73 g/l) and D2 (1.70 g/l), recovered from natural microbial consortia originated from mazut-contaminated soil, grown on sunflower oil as a carbon source. Di- to mono-rhamnolipids ratios were in the range of 0.90-5.39 for different media composition and from 1.12 to 4.17 for different producing strains. Rhamnolipid profiles of purified mixtures of all tested strains are similar with chain length from C8-C12, pronounced abundance of Rha-C10-C10 and Rha-Rha-C 10-C10 congeners, and a low content of 3-(3-hydroxyalkanoyloxy)-alkanoic acids. Concentrations of major congeners of RLs were found to slightly vary, depending on strain and growth conditions, while variations in minor congeners were more pronounced. Statistically significant increase of critical micelle concentration values was observed with lowering the ratio of total mono- to di-rhamnolipids ratio indicating that mono-rhamnolipids start to form micelles at lower concentration than di-rhamnolipids.
T2  - Journal of Surfactants and Detergents
T1  - Comparative analysis of rhamnolipids from novel environmental isolates of Pseudomonas aeruginosa
VL  - 16
IS  - 5
SP  - 673
EP  - 682
DO  - 10.1007/s11743-013-1462-4
ER  - 

@article{
author = "Rikalović, Milena and Abdel-Mawgoud, Ahmad Mohammad and Déziel, Eric and Gojgić-Cvijović, Gordana and Nestorović, Zorica and Vrvić, Miroslav and Karadžić, Ivanka",
year = "2013",
abstract = "A comparative analysis of rhamnolipids from environmental isolates of Pseudomonas aeruginosa was undertaken to evaluate strain-specific rhamnolipid fingerprints obtained under different growth conditions. Environmental isolates of P. aeruginosa produced rhamnolipids on different types of substrates, including cheap and renewable sources like sunflower oil from deep fryers and sunflower oil mill effluent. Rhamnolipids were monitored by high-performance liquid chromatography-electrospray ionization interface mass spectrometry, which allowed fast and reliable identification and quantification of the congeners present. The highest concentration of total rhamnolipids of 3.33 g/l was obtained by the strain P. aeruginosa 67, recovered from petroleum contaminated soil, and strains D1 (1.73 g/l) and D2 (1.70 g/l), recovered from natural microbial consortia originated from mazut-contaminated soil, grown on sunflower oil as a carbon source. Di- to mono-rhamnolipids ratios were in the range of 0.90-5.39 for different media composition and from 1.12 to 4.17 for different producing strains. Rhamnolipid profiles of purified mixtures of all tested strains are similar with chain length from C8-C12, pronounced abundance of Rha-C10-C10 and Rha-Rha-C 10-C10 congeners, and a low content of 3-(3-hydroxyalkanoyloxy)-alkanoic acids. Concentrations of major congeners of RLs were found to slightly vary, depending on strain and growth conditions, while variations in minor congeners were more pronounced. Statistically significant increase of critical micelle concentration values was observed with lowering the ratio of total mono- to di-rhamnolipids ratio indicating that mono-rhamnolipids start to form micelles at lower concentration than di-rhamnolipids.",
journal = "Journal of Surfactants and Detergents",
title = "Comparative analysis of rhamnolipids from novel environmental isolates of Pseudomonas aeruginosa",
volume = "16",
number = "5",
pages = "673-682",
doi = "10.1007/s11743-013-1462-4"
}

Rikalović, M., Abdel-Mawgoud, A. M., Déziel, E., Gojgić-Cvijović, G., Nestorović, Z., Vrvić, M.,& Karadžić, I.. (2013). Comparative analysis of rhamnolipids from novel environmental isolates of Pseudomonas aeruginosa. in Journal of Surfactants and Detergents, 16(5), 673-682.
https://doi.org/10.1007/s11743-013-1462-4

Rikalović M, Abdel-Mawgoud AM, Déziel E, Gojgić-Cvijović G, Nestorović Z, Vrvić M, Karadžić I. Comparative analysis of rhamnolipids from novel environmental isolates of Pseudomonas aeruginosa. in Journal of Surfactants and Detergents. 2013;16(5):673-682.
doi:10.1007/s11743-013-1462-4 .

Rikalović, Milena, Abdel-Mawgoud, Ahmad Mohammad, Déziel, Eric, Gojgić-Cvijović, Gordana, Nestorović, Zorica, Vrvić, Miroslav, Karadžić, Ivanka, "Comparative analysis of rhamnolipids from novel environmental isolates of Pseudomonas aeruginosa" in Journal of Surfactants and Detergents, 16, no. 5 (2013):673-682,
https://doi.org/10.1007/s11743-013-1462-4 . .