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), followed b...
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my.usim-84572017-02-23T04:22:54Z Tolerance and Biodegradation of Benzene, Toluene, Ethylbenzene and Xylenes (BTEX) by a Metal Acclimatized Bacterial Consortium Culture E. A., Fellie, K. K., Wong, S., Salmijah, P., Sannasi, J., Kader, TEX BTEX Tolerance Bacteria Bioremediation Biodegradation 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 (mu), 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 %), p-xylene (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. 2015-06-19T06:40:44Z 2015-06-19T06:40:44Z 2012 Article 0973-6263 http://ddms.usim.edu.my/handle/123456789/8457 en_US Research Journal Biotechnology |
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TEX BTEX Tolerance Bacteria Bioremediation Biodegradation |
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TEX BTEX Tolerance Bacteria Bioremediation Biodegradation E. A., Fellie, K. K., Wong, S., Salmijah, P., Sannasi, J., Kader, Tolerance and Biodegradation of Benzene, Toluene, Ethylbenzene and Xylenes (BTEX) by a Metal Acclimatized Bacterial Consortium Culture |
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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 (mu), 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 %), p-xylene (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. |
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Article |
author |
E. A., Fellie, K. K., Wong, S., Salmijah, P., Sannasi, J., Kader, |
author_facet |
E. A., Fellie, K. K., Wong, S., Salmijah, P., Sannasi, J., Kader, |
author_sort |
E. A., Fellie, |
title |
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_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_sort |
tolerance and biodegradation of benzene, toluene, ethylbenzene and xylenes (btex) by a metal acclimatized bacterial consortium culture |
publisher |
Research Journal Biotechnology |
publishDate |
2015 |
url |
http://ddms.usim.edu.my/handle/123456789/8457 |
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1645152420813078528 |