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Journal Articles Chemosphere Year : 2013

Solubilization of phenanthrene above cloud point of Brij 30: A new application in biodegradation

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Abstract

In the present study a new application of solubilization of phenanthrene above cloud point of Brij 30 in biodegradation was developed. It was shown that a temporal solubilization of phenanthrene above cloud point of Brij 30 (5 wt%) permitted to obtain a stable increase of the solubility of phenanthrene even when the temperature was decreased to culture conditions of used microorganism Pseudomonas putida (28 degrees C). A higher initial concentration of soluble phenanthrene was obtained after the cloud point treatment: 200 against 120 mu M without treatment. All soluble phenanthrene was metabolized and a higher final concentration of its major metabolite - 1-hydroxy-2-naphthoic acid - (160 against 85 mu M) was measured in the culture medium in the case of a preliminary cloud point treatment. Therefore a temporary solubilization at cloud point might have a perspective application in the enhancement of biodegradation of polycyclic aromatic hydrocarbons.
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hal-01282223 , version 1 (03-03-2016)

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T. Pantsyrnaya, Stéphane Delaunay, Jean-Louis Goergen, E. Guseva, Joseph Boudrant. Solubilization of phenanthrene above cloud point of Brij 30: A new application in biodegradation. Chemosphere, 2013, 92 (2), pp.192-195. ⟨10.1016/j.chemosphere.2013.03.025⟩. ⟨hal-01282223⟩
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