Isolation and characterization of bacteria degrading polychlorinated biphenyls from transformer oil
Por:
Rojas-Avelizapa N.G., Rodríguez-Vázquez R., Martínez-Cruz J., Esparza-García F., De Oca-García A.M., Ríos-Leal E., Fernández-Villagómez G.
Publicada:
1 ene 1999
Resumen:
Polychlorinated biphenyls from transformer oil were degraded in liquid culture under aerobic conditions using a mixed bacterial culture isolated from a transformer oil sample with a high content of polychlorinated biphenyls and other hydrocarbons. Four strains were identified, three of them corresponded to genus Bacillus, the other one to Erwinia. Bacteria in the transformer oil could remove as much as 65 % of polychlorinated biphenyls (88 % W/V in the transformer oil). Additional data showed that the two isolated strains of B. lentus were able to grow on transformer oil and degrade polychlorinated biphenyls by 80 and 83 %. Our results provide evidence that microorganisms occurring in transformer oil have the potential to degrade polychlorinated biphenyls.
Filiaciones:
Rojas-Avelizapa N.G.:
Depto. de Biotecnologia y Bioing., CINVESTAV-IPN, 07360 México (DF), Mexico
Rodríguez-Vázquez R.:
Depto. de Biotecnologia y Bioing., CINVESTAV-IPN, 07360 México (DF), Mexico
Martínez-Cruz J.:
Depto. de Biotecnologia y Bioing., CINVESTAV-IPN, 07360 México (DF), Mexico
Esparza-García F.:
Depto. de Biotecnologia y Bioing., CINVESTAV-IPN, 07360 México (DF), Mexico
De Oca-García A.M.:
Facultad de Ingeniería, Secc. de Ingeniería Ambiental, Cd. Universitaria, 70-256 México (DF), Mexico
Ríos-Leal E.:
Depto. de Biotecnologia y Bioing., CINVESTAV-IPN, 07360 México (DF), Mexico
Fernández-Villagómez G.:
Departamento de Biotecnología, Secc. de Protección Ambiental, IMP, 07730 México (DF), Mexico
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