期刊
CHEMOSPHERE
卷 92, 期 2, 页码 192-195出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2013.03.025
关键词
Cloud point; Surfactant; Phenanthrene; Biodegradation
资金
- French Embassy in Russia
- Institut Carnot ICEEL
- GISFI
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. (C) 2013 Elsevier Ltd. All rights reserved.
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