Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture
This investigation reports the tolerance and biodegradation of benzene, toluene, ethylbenzene and xylene isomers (BTEX) by a heavy metal-adapted environmental bacterial consortium, known as consortium culture (CC). Higher tolerance was observed with benzene (IC50 value up to 191.25 mg/L), foll...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2012
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| Online Access: | http://eprints.intimal.edu.my/141/ http://eprints.intimal.edu.my/141/1/26_ft.pdf |
| _version_ | 1848766404459757568 |
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| author | Fellie, E. A. Sannasi, P. Wong, K. K Salmijah, S. Kader, J. |
| author_facet | Fellie, E. A. Sannasi, P. Wong, K. K Salmijah, S. Kader, J. |
| author_sort | Fellie, E. A. |
| building | INTI Institutional Repository |
| collection | Online Access |
| description | This investigation reports the tolerance and
biodegradation of benzene, toluene, ethylbenzene and
xylene isomers (BTEX) by a heavy metal-adapted
environmental bacterial consortium, known as
consortium culture (CC). Higher tolerance was
observed with benzene (IC50 value up to 191.25 mg/L),
followed by toluene (IC50 = 139.67 mg/L), xylene (IC50
= 97.04 mg/L) and ethylbenzene (IC50 =96.99 mg/L).
Significant decrease (p < 0.05) in the specific growth
rate (µ), however was observed as the concentrations
of each individual BTEX were increased from 10 mg/L
to 500 mg/L. Growth of CC was completely inhibited
at 250 mg/L ethylbenzene and 500 mg/L xylene.
Toxicity followed the trend: B<T<X<E.
Biodegradation of individual BTEX compound was
monitored by gas chromatography. The GC-FID
chromatographic profiles showed the capability of CC
to significantly biodegrade (p < 0.05) benzene (61.66
%), toluene (55.91 %), ethylbenzene (37.15 %), pxylene
(43.66 %), m-xylene (47.86 %) and o-xylene
(41.03 %) at an initial concentration of 50 mg/L after
48 hours. These findings confirm the ability of CC to
withstand biodegrade and utilize BTEX as the sole
source of carbon and energy in the following order:
B>T>X>E. |
| first_indexed | 2025-11-14T11:50:36Z |
| format | Article |
| id | intimal-141 |
| institution | INTI International University |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:50:36Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | intimal-1412016-04-06T10:11:03Z http://eprints.intimal.edu.my/141/ Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture Fellie, E. A. Sannasi, P. Wong, K. K Salmijah, S. Kader, J. TP Chemical technology This investigation reports the tolerance and biodegradation of benzene, toluene, ethylbenzene and xylene isomers (BTEX) by a heavy metal-adapted environmental bacterial consortium, known as consortium culture (CC). Higher tolerance was observed with benzene (IC50 value up to 191.25 mg/L), followed by toluene (IC50 = 139.67 mg/L), xylene (IC50 = 97.04 mg/L) and ethylbenzene (IC50 =96.99 mg/L). Significant decrease (p < 0.05) in the specific growth rate (µ), however was observed as the concentrations of each individual BTEX were increased from 10 mg/L to 500 mg/L. Growth of CC was completely inhibited at 250 mg/L ethylbenzene and 500 mg/L xylene. Toxicity followed the trend: B<T<X<E. Biodegradation of individual BTEX compound was monitored by gas chromatography. The GC-FID chromatographic profiles showed the capability of CC to significantly biodegrade (p < 0.05) benzene (61.66 %), toluene (55.91 %), ethylbenzene (37.15 %), pxylene (43.66 %), m-xylene (47.86 %) and o-xylene (41.03 %) at an initial concentration of 50 mg/L after 48 hours. These findings confirm the ability of CC to withstand biodegrade and utilize BTEX as the sole source of carbon and energy in the following order: B>T>X>E. 2012 Article PeerReviewed text en http://eprints.intimal.edu.my/141/1/26_ft.pdf Fellie, E. A. and Sannasi, P. and Wong, K. K and Salmijah, S. and Kader, J. (2012) Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture. Research Journal of Biotechnology, 7 (3). pp. 52-58. ISSN 2278-4535 |
| spellingShingle | TP Chemical technology Fellie, E. A. Sannasi, P. Wong, K. K Salmijah, S. Kader, J. Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture |
| title | Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture |
| title_full | Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture |
| title_fullStr | Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture |
| title_full_unstemmed | Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture |
| title_short | Tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (BTEX) by a metal acclimatized bacterial consortium culture |
| title_sort | tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (btex) by a metal acclimatized bacterial consortium culture |
| topic | TP Chemical technology |
| url | http://eprints.intimal.edu.my/141/ http://eprints.intimal.edu.my/141/1/26_ft.pdf |