Kinetics of hydrocarbon extraction from oil shale using biosurfactant producing bacteria

Haddadin, Malik S.Y.; Arqoub, Ansam A. Abou; Reesh, Ibrahim Abu; Haddadin, Jamal

doi:10.1016/j.enconman.2008.12.015

Cited by 31 publications

(21 citation statements)

References 23 publications

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“…Considering that a greater biosurfactant yield was achieved when long‐chain oil was applied as hydrophobic carbon source for the production by some strains (Mata‐Sandoval et al. 2001; Haddadin et al. 2009), authors added n‐hexadecane in the medium.…”

Section: Discussionmentioning

confidence: 99%

Isolation of biosurfactant producers, optimization and properties of biosurfactant produced by Acinetobacter sp. from petroleum-contaminated soil

Chen

Huang

Zhang

et al. 2012

Journal of Applied Microbiology

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Aims: To screen and identify biosurfactant producers from petroleum‐contaminated soil; to use response surface methodology (RSM) for medium optimization to enhance biosurfactant production; and to study the properties of the newly obtained biosurfactant towards pH, temperature and salinity. Methods and Results: We successfully isolated three biosurfactant producers from petroleum‐contaminated soil and identified them through 16S rRNA sequence analysis, which exhibit the highest similarities to Acinetobacter beijerinckii (100%), Kocuria marina (99%) and Kineococcus marinus (99%), respectively. A quadratic response model was constructed through RSM designs, leading to a 57·5% increase of the growth‐associated biosurfactant production by Acinetobacter sp. YC‐X 2 with an optimized medium: beef extract 3·12 g l−1; peptone 20·87 g l−1; NaCl 1·04 g l−1; and n‐hexadecane 1·86 g l−1. Biosurfactant produced by Acinetobacter sp. YC‐X 2 retained its properties during exposure to a wide range of pH values (5–11), high temperatures (up to 121°C) and high salinities [up to 18% (w/v) Na+ and Ca2+], which was more sensitive to Ca2+ than Na+. Conclusions: Two novel biosurfactant producers were isolated from petroleum‐contaminated soil. Biosurfactant from Acinetobacter sp. YC‐X 2 has good properties to a wide range of pH, high temperature and high salinity, and its production was optimized successfully through RSM. Significance and Impact of the Study: The fact, an increasing demand of high‐quality surfactants and the lack of cost‐competitive bioprocesses of biosurfactants for commercial utilization, motivates researchers to develop cost‐effective strategies for biosurfactant production through isolating new biosurfactant producers with special surface‐active properties and optimizing their cultural conditions. Two novel biosurfactant producers in this study will widen our knowledge about this kind of micro‐organism. This work is the first application of RSM designs for cultural optimization of biosurfactant produced by Acinetobacter genus and the first report that biosurfactant may be more sensitive to Ca2+ than Na+.

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Section: Discussionmentioning

confidence: 99%

Isolation of biosurfactant producers, optimization and properties of biosurfactant produced by Acinetobacter sp. from petroleum-contaminated soil

Chen

Huang

Zhang

et al. 2012

Journal of Applied Microbiology

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“…Finnerty and Singer [67] demonstrated that the trehalose glycolipid produced by Rhodococcus strain H13-A improved the displacement of crude oil from rock cores by 20%, while oil recovery increases of around 30% from sandstones have been reported by using trehalose lipids produced by Nocardia rhodochrus [43]. Recently, biosurfactants produced by R. erythropolis and R. ruber were used to extract hydrocarbons from oil shale; the maximum recovery was obtained with biosurfactant concentrations of 8 and 4 g/ L for the two strains, respectively [68]. However, oil recovery proved less effective when a high percentage of asphaltenes and resin compounds were present.…”

Section: Industrial Applicationsmentioning

confidence: 95%

Production and applications of trehalose lipid biosurfactants

Franzetti

Gandolfi

Bestetti

et al. 2010

Euro J Lipid Sci & Tech

234

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Different types of trehalose containing glycolipids are known to be produced by several microorganisms belonging to the mycolates group, such as Mycobacterium, Rhodococcus, Arthrobacter, Nocardia and Gordonia. Different structures have been elucidated particularly in Rhodococcus genus. Trehalolipids have gained increased interest for their potential applications in a number of fields due to their ability to lower interfacial tension and increase pseudosolubility of hydrophobic compounds. The most widespread application is in bioremediation technologies as such compounds are known to enhance bioavailability of hydrocarbons. In comparison to other microbial glycolipids, trehalolipids have generally showed contrasting results and achievements with both cases of inhibition and enhancement of biodegradation rates. One of the important challenges regarding potential use of trehalose lipids in a variety of applications is the optimisation of their production and downstream processing. In fact, the purification of the target biological compounds by downstream processing can account for over half the production cost in many biotechnology applications. This is especially true in the case of the Rhodococcal glycolipids, which are often bound to cellular envelopes and are usually produced along with other surface active lipids. In this review, we highlight the current knowledge of trehalolipid biosurfactant applications and the latest successful strategies employed to reduce the cost of their production.

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“…In studies conducted by Haddadin et al [67], biosurfactants produced by Rhodococcus erythropolis and Rhodococcus ruber were successfully used for desorption of the hydrocarbons from El-Lajjun oil shale.…”

Section: Biosurfactants and Hydrocarbons Degradation/remediationmentioning

confidence: 99%

Environmental Applications of Biosurfactants: Recent Advances

Pacwa-Płociniczak

Płaza

Piotrowska‐Seget

et al. 2011

IJMS

811

421

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Increasing public awareness of environmental pollution influences the search and development of technologies that help in clean up of organic and inorganic contaminants such as hydrocarbons and metals. An alternative and eco-friendly method of remediation technology of environments contaminated with these pollutants is the use of biosurfactants and biosurfactant-producing microorganisms. The diversity of biosurfactants makes them an attractive group of compounds for potential use in a wide variety of industrial and biotechnological applications. The purpose of this review is to provide a comprehensive overview of advances in the applications of biosurfactants and biosurfactant-producing microorganisms in hydrocarbon and metal remediation technologies.

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Kinetics of hydrocarbon extraction from oil shale using biosurfactant producing bacteria

Cited by 31 publications

References 23 publications

Isolation of biosurfactant producers, optimization and properties of biosurfactant produced by Acinetobacter sp. from petroleum-contaminated soil

Isolation of biosurfactant producers, optimization and properties of biosurfactant produced by Acinetobacter sp. from petroleum-contaminated soil

Production and applications of trehalose lipid biosurfactants

Environmental Applications of Biosurfactants: Recent Advances

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