Characterization of a lipopeptide biosurfactant produced by a crude-oil-emulsifying Bacillus sp. I-15

Ismail, Wael; Al-Rowaihi, Israa S.; Al-Humam, Abdulmohsen A.; Hamza, Riyad Y.; Nayal, Ashraf M. El; Bououdina, M.

doi:10.1016/j.ibiod.2012.04.017

Cited by 87 publications

(48 citation statements)

References 46 publications

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“…DBT-sulfone is more polar than DBT due to the presence of the two oxygen atoms (sulfonyl group). Growth of AK6U on either DBT or DBT-sulfone as a sole sulfur source indicates its ability to obtain sulfur from these two substrates in a process known as biodesulfurization (Gallagher et al, 1993;Chen et al, 2008).The observed culture foaming is a preliminary indication of biosurfactants production (Ismail et al, 2013;Pasternak and Kotwzan, 2013). Results of the surface tension measurements were in agreement with the culture foaming trends.…”

supporting

confidence: 68%

Microbiotechnology Based Surfactants and Their Applications

Rahman¹

2016

Frontiers Research Topics

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PublisherFrontiers in Microbiology About FrontiersFrontiers is more than just an open-access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers Journal SeriesThe Frontiers Journal Series is a multi-tier and interdisciplinary set of open-access, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers Journal Series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to QualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: researchtopics@frontiersin.org 2 February 2016 | Microbiotechnology Based Surfactants and Their Applications Frontiers in MicrobiologyBiosurfactants are structurally diverse group of bioactive molecules produced by a variety of microorganisms. They are secondary metabolites that accumulate at interfaces, reduce surface tension and form micellar aggregates. This research topic describes few novel microbial strains with a focus on increasing our understanding of genetics, physiology, regulation of biosurfactant production and their commercial potentials. A major stumbling block in the commercialization of b...

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confidence: 68%

Microbiotechnology Based Surfactants and Their Applications

Rahman¹

2016

Frontiers Research Topics

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“…Till now, pure substrates such as glucose and hydrocarbonslike hexadecane, palm oil, olive oil etc have beenused for biosurfactant production [8]. In this study, SM was investigated for effective cell growth.…”

Section: Growth Kinetics Of Rahnella Sp Rmmentioning

confidence: 99%

“…Microorganisms are primarily used in the bioremediation to degrade or detoxify the pollutants into harmless and less toxic forms. Several studies reported the bioremediation of metal(loid)s by using microorganisms [8][9][10][11]. In addition, the use of microbial metabolic products widely analysed new tool increasing the removal of metal(loid)s from contaminated soil/water.…”

Section: Introductionmentioning

confidence: 99%

Isolation and characterization of a biosurfactant-producing heavy metal resistant Rahnella sp. RM isolated from chromium-contaminated soil

Govarthanan

Mythili²,

Selvankumar³

et al. 2017

Biotechnol Bioproc E

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Objective of the study was to isolate heavy metal resistant bacteria from chromiumcontaminated subsurface soil and investigate biosurfactant production and heavy metal bioremediation. Based on 16S rRNA gene sequence and phylogenetic analysis, the isolate was identified as Rahnella sp. RM. The biosurfactant production by heavy metal resistant Rahnella sp. RM was optimized using Box-Behnken design (BBD). The maximum emulsification activity was obtained 66 % at 6 % soybean meal in pH 7.0 and 33.5 °C. The biosurfactant was characterized using Field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR) and matrix assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF). The highest metal removal rates using the biosurfactant were found 74.3, 72.5, and 70.1 %, respectively, at the 100 mg/L amended flasks at 48 h. This study indicated the biosurfactant from heavy metal resistant Rahnella sp. RM could be used as a potential tool to remediate the metals in contaminated environments.

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“…An efficient biosurfactant can reduce the surface tension of water and air from 72 mN/m to less than 30 mN/m[40,45]. Accordingly, B. subtillisCN2 is a promising biosurfactant producer with a potential for use in environmental remediation and oil recovery strategies.Abdel-Mawgoud et al[44] demonstrated the high efficiency of a crude biosurfactant produced by B. subtilis BS5 based on the reduction of the surface tension of water from 70 to 36 mN/m.…”

mentioning

confidence: 99%