Biosurfactants production from low cost substrate and degradation of diesel oil by a rhodococcus strain (Record no. 169124)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 02241nab a2200217 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2008 xxu |
| 245 00 - TITULO | |
| Título | Biosurfactants production from low cost substrate and degradation of diesel oil by a rhodococcus strain |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Fecha de publicación, distribución, etc. | nov./dic. 2008 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 15/05/2009 ; 24/02/2009 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 6 p. ; 747-753 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resúmen publicado por el autor: The ability of a Rhodococcus strain to produce surface-active agents from residual sunflower frying oil (RSFO) has been screened in batch cultures. During cultivation with RSFO at the concentration 3% (vol/vol), the strain has synthesized extra-cellular compounds which increase the E24 emulsion index of the culture medium up to 63%. In their crude form, these substances lower the surface tension of water until 31.9 mN m-1. The exponential growth with RSFO as the sole carbon source has developed at a specific growth rate = 0.55 d-1. The critical micelle concentration of the crude product reached the value 287 mg L-1 (CMC = 31.9 mN m-1). After methylesterification, the lipid fraction of biosurfactants has been analyzed by GC-MS in EI, which reveals the presence of fatty acid methyl esters. The microorganism was also cultivated with the diesel oil as the sole carbon source at the concentration 1% (vol/vol): the active growth phase has developed at rate = 0.02 d-1, without production of emulsifying substance: the microorganism seems to develop different modes of substrate uptake, according to the nature of the carbon source. The potential use of surface-active agents synthesized on RSFO by Rhodococcus erythropolis 16 LM.USTHB is in the oil industry with minimum purity specification, so that crude preparation could be used, at low cost, in clean-up of hydrocarbons contaminated sites and for enhanced oil recovery. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 6 |
| 773 0# - CORRECCIÓN | |
| Descripción física | 63 |
| Título | Oil and Gas Science and Technology |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Sadouk, Z. |
| 9 (RLIN) | 40388 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Hacene, H. |
| 9 (RLIN) | 40389 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Tazerouti, A. |
| 9 (RLIN) | 40390 |
| 856 ## - LINK | |
| Link | <a href="http://ogst.ifp.fr/index.php?option=article&access=standard&Itemid=129&url=/articles/ogst/pdf/2008/06/ogst08015.pdf">http://ogst.ifp.fr/index.php?option=article&access=standard&Itemid=129&url=/articles/ogst/pdf/2008/06/ogst08015.pdf</a> |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca virtual | Biblioteca virtual | 05/03/2026 | 200043916 | 200043916 | 05/03/2026 | Artículo de Revista |
