Effect of Heavy Metals and Other Xenobiotics on Biodegradation of Waste Canola Oil by Cold-Adapted Rhodococcus sp. AQ5-07
Autor: | Claudio Gomez-Fuentes, Gerardo González-Rocha, Khalilah Abdul Khalil, Salihu Ibrahim, Siti Aisyah Alias, Khadijah Nabilah Mohd Zahri, Suriana Sabri, Gillian Li Yin Lee, Siti Aqlima Ahmad, A. Zulkharnain, Peter Convey |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
chemistry.chemical_classification
Pollutant 0303 health sciences food.ingredient biology 010405 organic chemistry Chemistry General Chemical Engineering Biodegradation biology.organism_classification 01 natural sciences 6. Clean water 0104 chemical sciences 03 medical and health sciences food Hydrocarbon Bioremediation Vegetable oil Wastewater 13. Climate action Environmental chemistry Canola Rhodococcus 030304 developmental biology |
Popis: | The Antarctic is generally considered to be one of the most pristine areas in the world. However, both long and short-range pollutants are now known to be present in the Antarctic environment. Canola oil is an example of a polluting hydrocarbon that can be accidentally released into the Antarctic environment in oil wastewater treatment plants. The Antarctic soil bacterial strain Rhodococcus sp. AQ5-07, known to be capable of using waste canola oil (WCO) as its sole source of carbon, was tested for its ability to degrade canola oil in the presence of different heavy metals and xenobiotics. Rhodococcus sp. AQ5-07 was grown on minimum salt media containing different heavy metals (Zn, Co, Ni, Ag, Pb, Cu, Cr, Hg, Cd and As), xenobiotics (acrylamide and phenol) supplemented with 3% WCO. Three out of the 10 heavy metals tested (Hg, Cd and Ag) led a significant reduction in canola oil degradation at a concentration of 1 ppm. The IC50 values of Hg, Cd and Ag were 0.38, 0.45 and 0.32 ppm, respectively. The strain could also withstand 10 mg/L acrylamide, 50 mg/L phenol and 0.5% (v/v) diesel. This study confirmed the ability of Rhodococcus sp. AQ5-07 to degrade canola oil in the presence of various heavy metals and other xenobiotics, supporting its potential use in bioremediation of vegetable oil and wastewater treatments in low temperature environments. |
Databáze: | OpenAIRE |
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