Enhanced biodegradation of hydrocarbons in petroleum tank bottom oil sludge and characterization of biocatalysts and biosurfactants

Suganthi, S.; Murshid, Shabnam; Sriram, Sriswarna; Ramani, K.

doi:10.1016/j.jenvman.2018.04.120

Cited by 91 publications

(24 citation statements)

References 33 publications

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“…Moreover, the changes occurring on the bacteria cell surface suggested that it would not consistently favor direct uptake of the An important factor describing the possibility of surfactants to create stable emulsions is the emulsification index [42]. Suganthi et al [43] have observed that the lipoprotein biosurfactants emulsify petrol and diesel oil with emulsification index ranging from 56 to 78%. High emulsification index values in systems with various hydrocarbons, which are potential pollutants, have been reported by many authors, like Jamil et al, Ma et al, Peele et al, and Costa et al [44][45][46][47].…”

Section: Hydrocarbon Emulsification and Desorption With Biosurfactantsmentioning

confidence: 99%

The Impact of Biosurfactants on Microbial Cell Properties Leading to Hydrocarbon Bioavailability Increase

Kaczorek

Pacholak

Zdarta

et al. 2018

Colloids and Interfaces

141

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The environment pollution with hydrophobic hydrocarbons is a serious problem that requires development of efficient strategies that would lead to bioremediation of contaminated areas. One of the common methods used for enhancement of biodegradation of pollutants is the addition of biosurfactants. Several mechanisms have been postulated as responsible for hydrocarbons bioavailability enhancement with biosurfactants. They include solubilization and desorption of pollutants as well as modification of bacteria cell surface properties. The presented review contains a wide discussion of these mechanisms in the context of alteration of bioremediation efficiency with biosurfactants. It brings new light to such a complex and important issue.

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Section: Hydrocarbon Emulsification and Desorption With Biosurfactantsmentioning

confidence: 99%

The Impact of Biosurfactants on Microbial Cell Properties Leading to Hydrocarbon Bioavailability Increase

Kaczorek

Pacholak

Zdarta

et al. 2018

Colloids and Interfaces

141

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“…2015; Suganthi et al . 2018). The effect of pH on the degradation activity of the consortium was evaluated.…”

Section: Resultsmentioning

confidence: 99%

Enhanced biodegradation of crude oil in soil by a developed bacterial consortium and indigenous plant growth promoting bacteria

et al. 2020

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Aims This study aimed to develop an efficient, cost‐effective and eco‐friendly bacterial consortium to degrade petroleum sludge. Methods and Results Four bacterial strains belonging to genera Acinetobacter and Pseudomonas were selected to constitute three different consortia based on their initial concentration. The highest degradation rate (78%) of 1% (v/v) crude oil after 4 weeks of incubation was recorded when the concentration of biosurfactant (BS) producing isolate was high. Genes, such as alkB, almA, cyp153, pah‐rhdGN, nah, phnAC and cat23 were detected using the polymerase chain reaction method and their induction levels were optimal at pH 7·0. A crude oil sludge was artificially constituted, and its bacterial composition was investigated using 16S rRNA gene amplicon sequencing. The results showed that the soil bacterial community was dominated by plant growth‐promoting bacteria (PGPB) after crude oil treatment. Conclusions Our findings indicate the decontamination of the crude oil contaminated soil was more effective in the presence of both the constituted consortium and PGPB compared to the presence of PGPB alone. Significance and Impact of the Study This study showed that the PGPB (Taibaiella) present in petroleum uncontaminated soil can promote the soil decontamination. The addition of both efficient hydrocarbon‐degrading and BS producing bacteria is also necessary to improve the decontamination.

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“…For instance, the strain S. putrefaciens 200 has been isolated from a sample of crude oil (Obuekwe, Westlake and Cook 1981). In fact, numerous Shewanella strains have been detected in oil-and fuel-contaminated environments and have been shown to degrade these hydrocarbides in some cases (Gentile et al 2003;Martín-Gil, Ramos-Sánchez and Martín-Gil 2004;Deppe et al 2005;Gerdes et al 2005;Gao et al 2015;Suganthi et al 2018). Similarly, Shewanella sp.…”

Section: Human-derived Ecological Nichesmentioning

confidence: 99%

TheShewanellagenus: ubiquitous organisms sustaining and preserving aquatic ecosystems

Lemaire

Méjean

Iobbi‐Nivol

2020

FEMS Microbiology Reviews

109

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The Gram-negative Shewanella bacterial genus currently includes about 70 species of mostly aquatic γ-proteobacteria, which were isolated around the globe in a multitude of environments such as surface freshwater and the deepest marine trenches. Their survival in such a wide range of ecological niches is due to their impressive physiological and respiratory versatility. Some strains are among the organisms with the highest number of respiratory systems, depending on a complex and rich metabolic network. Implicated in the recycling of organic and inorganic matter, they are important components of organism-rich oxic/anoxic interfaces, but they also belong to the microflora of a broad group of eukaryotes from metazoans to green algae. Examples of long-term biological interactions like mutualism or pathogeny have been described, although molecular determinants of such symbioses are still poorly understood. Some of these bacteria are key organisms for various biotechnological applications, especially the bioremediation of hydrocarbons and metallic pollutants. The natural ability of these prokaryotes to thrive and detoxify deleterious compounds explains their use in wastewater treatment, their use in energy generation by microbial fuel cells and their importance for resilience of aquatic ecosystems.

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Enhanced biodegradation of hydrocarbons in petroleum tank bottom oil sludge and characterization of biocatalysts and biosurfactants

Cited by 91 publications

References 33 publications

The Impact of Biosurfactants on Microbial Cell Properties Leading to Hydrocarbon Bioavailability Increase

The Impact of Biosurfactants on Microbial Cell Properties Leading to Hydrocarbon Bioavailability Increase

Enhanced biodegradation of crude oil in soil by a developed bacterial consortium and indigenous plant growth promoting bacteria

TheShewanellagenus: ubiquitous organisms sustaining and preserving aquatic ecosystems

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