Mode of action of an oleophilic nutrient in enhancing 14C-hexadecane mineralization by a marine bacterial community |
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Authors: | Franck Bruchon Anne Basseres Jean-Claude Bertrand |
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Institution: | (1) Elf Petroleum Norge A.S. - Elf Akvamiljø, Mekjarvik 12, N-4070 Randaberg, Norway;(2) Groupement de Recherche de Lacq - Groupe Elf, B.P. 34, 64170 Artix, France;(3) Centre d'Océanologie de Marseille (OSU) URA 41 - Faculté des Sciences de Luminy - Case 901, 9 Marseille, France |
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Abstract: | Hexadecane mineralization by a bacterial consortium isolated from a non heavily contaminated coastal seawater was largely increased by an enrichment with Inipol EAP 22 (10% w/w). In the conditions of the experiment, the efficiency of this oleophilic nutrient is linked to the organic N and P sources (urea and lauryl-phosphate) and, to a lesser extent, to the presence of a readily available carbon source (oleic acid). Otherwise, the micro emulsion nature of the formulation and its physical properties seem to play a major role in accelerating hexadecane mineralization. |
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