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Biotechnological Potential of Oil-Tolerant Strains for Possible Use in Bioremediation

Author

Listed:
  • Barbara Bertović

    (STSI—Integrirani Tehnički Servisi d.o.o., Lovinčićeva 4, 10002 Zagreb, Croatia)

  • Monika Šabić Runjavec

    (Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, 10000 Zagreb, Croatia)

  • Nolla Todorović

    (Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, 10000 Zagreb, Croatia)

  • Ivan Zgrebec

    (Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, 10000 Zagreb, Croatia)

  • Marija Vuković Domanovac

    (Faculty of Chemical Engineering and Technology, University of Zagreb, Trg Marka Marulića 19, 10000 Zagreb, Croatia)

Abstract

The release of oil into the environment represents a pervasive problem stemming from oil exploration, accidents, transportation and releases from landfills, storage facilities or industrial plants. Compared to conventional and costly techniques, bioremediation is an attractive and promising alternative, as it can selectively degrade pollution without affecting the natural features of the site and the flora and fauna living there. In this study, the isolation, identification and characterization of autochthonous bacterial strains from a crude oil-contaminated soil sample was carried out under batch conditions over a period of 28 days. The initial colony forming units value for bacteria was 1.15 × 10 9 /g of soil. The results show that the activity of bacteria was highest at a pH of 7.25. Based on morphology, biochemical tests and an analysis of MALDI TOF, isolated autochthonous bacterial species were identified as Bacillus megaterium , Bacillus licheniformis , Bacillus cereus and Pseudomonas chlororaphis . Since allochthonous bacteria are not highly efficient in a new environment due to their low adaptability and competition with indigenous microorganisms, these autochthonous microorganisms play a pivotal role in enhancing the bioremediation process on an applicable, industrial scale. This advancement aligns with the principles of sustainable development and the green economy, as purified soil is suitable for rational reuse in the environment.

Suggested Citation

  • Barbara Bertović & Monika Šabić Runjavec & Nolla Todorović & Ivan Zgrebec & Marija Vuković Domanovac, 2024. "Biotechnological Potential of Oil-Tolerant Strains for Possible Use in Bioremediation," Sustainability, MDPI, vol. 16(2), pages 1-16, January.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:2:p:563-:d:1315719
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    References listed on IDEAS

    as
    1. Eduardo Jahir Gutiérrez & María del Rosario Abraham & Juan Carlos Baltazar & Guadalupe Vázquez & Eladio Delgadillo & David Tirado, 2020. "Pseudomonas fluorescens : A Bioaugmentation Strategy for Oil-Contaminated and Nutrient-Poor Soil," IJERPH, MDPI, vol. 17(19), pages 1-14, September.
    2. Xin Sui & Xuemei Wang & Yuhuan Li & Hongbing Ji, 2021. "Remediation of Petroleum-Contaminated Soils with Microbial and Microbial Combined Methods: Advances, Mechanisms, and Challenges," Sustainability, MDPI, vol. 13(16), pages 1-26, August.
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