Feather waste as petroleum sorbent: A study of its structural biodegradation

L. I. Rojas-Avelizapa, E. Cervantes-González, R. Cruz-Camarillo, N. G. Rojas-Avelizapa, J. García-Mena

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

6 Citas (Scopus)

Resumen

Using scanning electron microscopy (SEM), the present study evaluated the biodegradation of chicken feathers during a petroleum hydrocarbon removal process by a defined-mixed culture that pose the simultaneous abilities to remove petroleum hydrocarbons and produce keratinases in liquid culture. Biodegradation treatments were performed in Erlenmeyer flasks containing mineral media, 6% w/v of chicken feathers and 64,800 mg I-1 of petroleum hydrocarbons. Flasks were inoculated with the keratinolytic-mixed culture, which was previously obtained from a petroleum-polluted site, and then incubated at 28°C, 180 rpm during 21 days. Every 7th day, a sample was collected and fractioned; one fraction was processed to be analyzed by SEM while the residual petroleum-hydrocarbons were extracted from the other fraction and quantified by gas chromatography. Controls without inocula were processed under same conditions. The photomicrographs illustrated the different stages of the feathers' biodegradation; they are first found intact without degradation while the microorganisms from the mixed culture appear only in the supernatants. After the 7th day a remarkable colonization of the feathers begins to be observed, along with a considerable degradation observed after the 14th day of incubation.

Idioma originalInglés
Título de la publicación alojadaAssociation for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007
Páginas50-58
Número de páginas9
EstadoPublicada - 2007
Publicado de forma externa
Evento23rd Annual International Conference on Soils Sediments and Water 2007 - Amherst, MA, Estados Unidos
Duración: 15 oct 200718 oct 2007

Serie de la publicación

NombreAssociation for Environmental Health and Sciences - 23rd Annual International Conference on Soils, Sediments and Water 2007
Volumen13

Conferencia

Conferencia23rd Annual International Conference on Soils Sediments and Water 2007
País/TerritorioEstados Unidos
CiudadAmherst, MA
Período15/10/0718/10/07

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