Hernández-Ospina, Diego; Viccari-Pereira, Jean; Osorio-González, Carlos S.; Martel, Richard 
ORCID: https://orcid.org/0000-0003-4219-5582 et Brar, Satinder Kaur
(2026).
BTEX degradation by the coculture of S. fonticola and M. esteraromaticum.
International Biodeterioration & Biodegradation
, vol. 206
.
p. 106219.
DOI: 10.1016/j.ibiod.2025.106219.
Résumé
The increasing demand for petroleum hydrocarbons has led to rising levels of high-risk pollutants such as Benzene-Toluene-Ethylbenzene-Xylene (BTEX) in the environment, and widely recognized for their carcinogenic nature. This study evaluates the potential tolerance and the single and multi-compound degradation of BTEX compounds by a coculture of Serratia fonticola and Microbacterium esteraromaticum. Batch treatments were conducted in synthetic media, supplemented with 30 mg L−1 of benzene, xylene, toluene and ethylbenzene for a single compound degradation test and with 120 mg L−1 of BTEX compounds in a 1:1:1:1 ratio (equal weight-based contributions) for a multiple compound degradation test. Coculture showed a BTEX multicompound degradation of 47 %, which is 5 % and 2 % higher degradation than the one achieved by S. fonticola and M. esteraromaticum, respectively. Degradation for single-compound shows 99 % for benzene, 85 % for ethylbenzene, 72 % for toluene, and 62 % for xylene. These findings provide new insights into bacterial coculture interactions under mixed-contaminant stress, its biodegradation performance and provide a strong basis for developing tailored bioremediation strategies in both single-compound and multi-compound degradation of BTEX. Furthermore, the glucose consumption and BTEX tolerance could serve as potential indicators for monitoring of the progress and efficacy of BTEX remediation in contaminated environments.
| Type de document: | Article |
|---|---|
| Mots-clés libres: | BTEX biodegradation; BTEX tolerance; Coculture; S. fonticola; M. esteraromaticum |
| Centre: | Centre Eau Terre Environnement |
| Date de dépôt: | 25 févr. 2026 20:57 |
| Dernière modification: | 25 févr. 2026 20:57 |
| URI: | https://espace.inrs.ca/id/eprint/16703 |
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