Artículos de revistas
Exopolymeric Substances (EPS) Produced by Petroleum Microbial Consortia
Registro en:
Journal Of The Brazilian Chemical Society. Soc Brasileira Quimica, v. 21, n. 8, n. 1517, n. 1523, 2010.
0103-5053
WOS:000280811000016
Autor
da Cruz, GF
Angolini, CFF
Neto, EVD
Loh, W
Marsaioli, AJ
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Microbial consortia recuperated of crude oil samples from the Pampo Sul field, Campos Basin, RJ, produced biosurfactants in mineral media containing glucose and 9,10-dihydrophenantrene, n-nonadecane, nonadecanoic acid, slightly biodegraded crude oil (P1) or heavily biodegraded crude oil (P2) as carbon sources. The production of exopolimeric substances (EPS) and petroleum biodegradation do not necessarily occur simultaneously. The EPS analyses by infrared and eletronspray ionization mass spectrometry (ESI-MS) revealed a mixture of surfactine isoforms. The biosurfactants reduced the surface tension of water and Zinder medium from 72.4 and 55.7 to 28.6 mN m(-1). Additionally, this surfactant emulsified different oils in water with performances similar to or better than of a conventional surfactant, Tween 80. 21 8 1517 1523 FINEP PETROBRAS Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)