Bioremediation of petroleum - contaminated soil using microorganisms
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Дата
2021
Назва журналу
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Анотація
Biosurfactants are surface - active molecules that can reduce surface tension.
Microorganisms are able to produce biosurfactants and bio emulgators, that are
characterized with structural and functional diversity. There are 39 bacterial strains
that are produced by petroleum - contaminated soil biot in Georgia. There are 11
Pseudomonas, 17 Bacillus and 4 Rhodococcus strains identified here. With the help of
screening, seven bacterial strains are chosen that are produced by biosurfactants.
Producing biosurfactants by the genus Bacillus reaches its maximum in 24 hours, but
by Pseudomonas and Rhodococcus strains - in 72 hours. Surface tension tensiometer
method has discovered three strains that can synth extracellular biosurfactants. In
order to increase the biosurfactant yield, there are carefully selected feeding areas
and good conditions for cultivating. Among the strains that are well known with its
extracellular biosurfactant yield, Pseudomonas sp. GV19 stands out with its 30.1
milinuton/meter strain.
Опис
Shiukashvili T. Bioremediation of petroleum - contaminated soil using microorganisms / T. Shiukashvili, M. Ichkiti, T. Khutuashvili ; advisor : M. Davitashvili // Black Sea Science 2021 : proc. of the Intern. Competition of Student Scientific Works / Odessa National Academy of Food Technologies ; eds. B. Yegorov, M. Mardar [et al.]. – Odessa: ONAFT, 2021. – P. 651–664 : tabl., fig. – Ref.: 39 tit.
Ключові слова
biosurfactants, bioemulgators, strain, desorption, emulsify, solubilization, extracellular, bioremediation