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AuthorCheffi, Meriam
AuthorHentati, Dorra
AuthorChebbi, Alif
AuthorMhiri, Najla
AuthorSayadi, Sami
AuthorMarques, Ana Maria
AuthorChamkha, Mohamed
Available date2020-09-22T09:24:48Z
Publication Date2020
Publication Name3 Biotech
CitationCheffi, M., Hentati, D., Chebbi, A. et al. Isolation and characterization of a newly naphthalene-degrading Halomonas pacifica, strain Cnaph3: biodegradation and biosurfactant production studies. 3 Biotech 10, 89 (2020). https://doi.org/10.1007/s13205-020-2085-x
URIhttp://dx.doi.org/10.1007/s13205-020-2085-x
URIhttp://hdl.handle.net/10576/16229
AbstractA newly marine Halomonas pacifica strain Cnaph3 was isolated, as a naphthalene degrader and biosurfactant producer, from contaminated seawater collected in Ataya's fishing harbor, located in Kerkennah Islands, Tunisia. Chromatography flame ionization detector analysis revealed that 98.8% of naphthalene (200 mg/L) was degraded after 7 days of incubation, at 30 g/L NaCl and 37 C. Strain Cnaph3 showed also a noticeable capacity to grow on a wide range of aliphatic, aromatic, and complex hydrocarbons. Interestingly, strain Cnaph3 showed a significant potential to produce biosurfactants in the presence of all tested substrates, particularly on glycerol (1%, v/v). Electrospray ionization analysis of the biosurfactant, designated Bios-Cnaph3, suggested a lipopeptide composition. The critical micelle concentration of Bios-Cnaph3 was about 500 mg/L. At this concentration, the surface tension of the water was reduced to 27.6 mN/m. Furthermore, Bios-Cnaph3 displayed interesting stabilities over a wide range of temperatures (4-105 C), salinities (0-100 g/L NaCl), and pH (2.2-12.5). In addition, it showed promising capacities to remove used motor oil from contaminated soils. The biodegradation and biosurfactant-production potential of the Halomonas sp. strain Cnaph3 would present this strain as a favorite agent for bioremediation of hydrocarbon-contaminated sites under saline conditions.
Languageen
PublisherSpringer Verlag
SubjectNaphthalene
Biodegradation
Lipopeptides
Halomonas pacifica
Hydrocarbons
remobilization
TitleIsolation and characterization of a newly naphthalene degrading Halomonas pacifica, strain Cnaph3: biodegradation and biosurfactant production studies
TypeArticle
Volume Number10


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