Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Properties and potential application of efficient biosurfactant produced by Pseudomonas sp. KZ1 strain
Increasing use of biosurfactants has stimulated the search for new and efficient biosurfactant-producing bacterial strains, preferably nonpathogenic ones. The aim of the present study was to characterize a new isolated Pseudomonas sp. KZ1 strain and its exocellular surface active compounds. After examining several mineral media of different compositions, the bioreactor-scale production of biosurfactants under optimum conditions was tested. Then, the composition of the isolated biosurfactants was investigated by Fourier-transform infrared spectroscopy and gas chromatography-mass spectrometry analysis and their surface active properties were characterized by adsorption parameters. The results indicated that the Pseudomonas sp. KZ1 biosurfactant had the critical micelle concentration of 0.12 g L−1 and decreased the surface tension decreased to 31.7 mN m−1. Moreover, the biosurfactant increased the rate of biodegradation of diesel oil by the strains: Pseudomonas sp. KZ1, Pseudomonas sp. OS4 and Achromobacter sp. KW1. The obtained biosurfactant showing attractive properties is a promising and much ‘greener’ alternative in the application for surfactant-enhanced biodegradation of hydrocarbons.
Properties and potential application of efficient biosurfactant produced by Pseudomonas sp. KZ1 strain
Increasing use of biosurfactants has stimulated the search for new and efficient biosurfactant-producing bacterial strains, preferably nonpathogenic ones. The aim of the present study was to characterize a new isolated Pseudomonas sp. KZ1 strain and its exocellular surface active compounds. After examining several mineral media of different compositions, the bioreactor-scale production of biosurfactants under optimum conditions was tested. Then, the composition of the isolated biosurfactants was investigated by Fourier-transform infrared spectroscopy and gas chromatography-mass spectrometry analysis and their surface active properties were characterized by adsorption parameters. The results indicated that the Pseudomonas sp. KZ1 biosurfactant had the critical micelle concentration of 0.12 g L−1 and decreased the surface tension decreased to 31.7 mN m−1. Moreover, the biosurfactant increased the rate of biodegradation of diesel oil by the strains: Pseudomonas sp. KZ1, Pseudomonas sp. OS4 and Achromobacter sp. KW1. The obtained biosurfactant showing attractive properties is a promising and much ‘greener’ alternative in the application for surfactant-enhanced biodegradation of hydrocarbons.
Properties and potential application of efficient biosurfactant produced by Pseudomonas sp. KZ1 strain
Zdarta, Agata (Autor:in) / Smułek, Wojciech (Autor:in) / Trzcińska, Anna (Autor:in) / Cybulski, Zefiryn (Autor:in) / Kaczorek, Ewa (Autor:in)
Journal of Environmental Science and Health, Part A ; 54 ; 110-117
28.01.2019
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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