Efecto de metales pesados y otros xenobioticos en la biodegradación de residuos de aceite de canola mediante la cepa adaptada al frío Rhodococcus sp. AQ5-07

Translated title of the contribution: Effect of heavy metals and other xenobiotics on biodegradation of waste canola oil by cold-adapted Rhodococcus sp. strain AQ5-07

S. Ibrahim, A. Zulkharnain, K. N.M. Zahri, G. L.Y. Lee, P. Convey, C. Gomez-Fuentes, S. Sabri, K. A. Khalil, S. A. Alias, G. Gonzalez-Rocha, S. A. Ahmad

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Translated title of the contributionEffect of heavy metals and other xenobiotics on biodegradation of waste canola oil by cold-adapted Rhodococcus sp. strain AQ5-07
Original languageSpanish
Pages (from-to)1041-1052
Number of pages12
JournalRevista Mexicana de Ingeniera Qumica
Volume19
Issue number3
DOIs
Publication statusPublished - 2020 Sep 1

Keywords

  • Arctica
  • Biodegradation
  • Canola oil
  • Heavy metals
  • Rhodococcus
  • Xenobiotics

ASJC Scopus subject areas

  • Chemical Engineering(all)

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    Ibrahim, S., Zulkharnain, A., Zahri, K. N. M., Lee, G. L. Y., Convey, P., Gomez-Fuentes, C., Sabri, S., Khalil, K. A., Alias, S. A., Gonzalez-Rocha, G., & Ahmad, S. A. (2020). Efecto de metales pesados y otros xenobioticos en la biodegradación de residuos de aceite de canola mediante la cepa adaptada al frío Rhodococcus sp. AQ5-07. Revista Mexicana de Ingeniera Qumica, 19(3), 1041-1052. https://doi.org/10.24275/rmiq/Bio917