Strategic biosurfactant-advocated bioremediation technologies for the removal of petroleum derivatives and other hydrophobic emerging contaminants

Krishnan Venkatesan, Swathi; Mandava, Raja Rajeswari Devi; Srinivasan, Venkat Ramanan; Prasad, Megha; Kandasamy, Ramani

doi:10.1016/b978-0-443-13288-9.00005-x

Industrial Applications of Biosurfactants and Microorganisms 2024

DOI: 10.1016/b978-0-443-13288-9.00005-x

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Strategic biosurfactant-advocated bioremediation technologies for the removal of petroleum derivatives and other hydrophobic emerging contaminants

Swathi Krishnan Venkatesan,

Raja Rajeswari Devi Mandava,

Venkat Ramanan Srinivasan

et al.

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2024

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Cited by 2 publications

References 112 publications

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Roseomonas aestuarii, as a Potential In Situ Surfactin Producer During Hydrocarbon Biodegradation

Hosseini,

Sharifi,

Habibi

et al. 2024

Journal of Basic Microbiology

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In situ biosurfactant production by hydrocarbon degrader microorganisms is an attractive approach in the bioremediation of oil contamination because of their compatibility, biodegradability, environmental safety, and stability under extreme environmental conditions. Given the high efficiency of bacteria in degrading petroleum hydrocarbons, the present work studied the detection and characterization of a biosurfactant‐producing hydrocarbon degrader, Roseomonas aestuarii NB833. This strain was able to synthesize a biosurfactant during the biodegradation of crude oil, which reduced the surface tension of the aqueous system from 70 to 34 mN m−1, with a critical micelle concentration of 200 mg L−1. The emulsification ability of the biosurfactant was sustained at various temperatures, pH values, and salinities. The biosurfactant chemical structure was identified via FT‐IR, LC‐MS, and NMR analyses. These analyses confirmed the production of surfactin‐C14 with a molecular mass of 1007 g mol−1. These results revealed the high potential of R. aestuarii NB833 as an in situ surfactin‐producing bacteria for bioremediation applications under extreme environmental conditions.

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Roseomonas aestuarii, as a Potential In Situ Surfactin Producer During Hydrocarbon Biodegradation

Hosseini,

Sharifi,

Habibi

et al. 2024

Journal of Basic Microbiology

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Bioremediation of Oil-Contaminated Soils Using Biosurfactants Produced by Bacteria of the Genus Nocardiopsis sp.

Biktasheva,

Gordeev,

Usova

et al. 2024

Microbiology Research

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One of the effective and safe methods of soil cleanup from oil pollution is bioremediation by introducing microorganisms or their metabolites. In this study, the effect of biosurfactants produced by Nocardiopsis sp. 3mo on the rate of bioremediation of oil-contaminated soils was assessed. Biosurfactants were introduced into soils contaminated with 2% oil at a concentration of 0.05 and 0.1%, and the degree of hydrocarbon degradation was estimated within 63 days. It was found that the studied biosurfactant belonged to the glycopeptide type. The aeration and irrigation of oil-contaminated soil (PSA) resulted in a 5% decrease in the number of hydrocarbons. The introduction of biosurfactants into oil-contaminated soil at a concentration of 0.5 (BS(0.5)) and 1 g kg−1 (BS(1)) resulted in a 29 and 35% decrease in the content of hydrocarbons, respectively. The state of the soil microbiome was assessed by its metabolic activity. Thus, the respiratory activity of microorganisms on the first day after contamination increases by 5–7 times, and urease activity by 3–4 times. The introduction of oil into the soil during the first day reduces the activity of dehydrogenase by 2.3–1.6 times. In the process of bioremediation, the indicators of microbial activity returned to values close to the original. Thus, it was established that the use of biosurfactants produced by Nocardiopsis sp. 3mo increases the ability of the native soil community to degrade hydrocarbons.

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Strategic biosurfactant-advocated bioremediation technologies for the removal of petroleum derivatives and other hydrophobic emerging contaminants

Cited by 2 publications

References 112 publications

Roseomonas aestuarii, as a Potential In Situ Surfactin Producer During Hydrocarbon Biodegradation

Roseomonas aestuarii, as a Potential In Situ Surfactin Producer During Hydrocarbon Biodegradation

Bioremediation of Oil-Contaminated Soils Using Biosurfactants Produced by Bacteria of the Genus Nocardiopsis sp.

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