A novel exopolysaccharide-producing and long-chain n-alkane degrading bacterium Bacillus licheniformis strain DM-1 with potential application for in-situ enhanced oil recovery

A novel Bacillus licheniformis strain (DM-1) was isolated from a mature reservoir in Dagang oilfield of China. DM-1 showed unique properties to utilize petroleum hydrocarbons and agroindustrial by-product (molasses) for exopolysaccharide (EPS) production under oil recovery conditions. The DM-1 EPS w...

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Veröffentlicht in:	Scientific reports 2020-05, Vol.10 (1), p.8519, Article 8519
Hauptverfasser:	Fan, Yanhui, Wang, Jun, Gao, Chunming, Zhang, Yumiao, Du, Wen
Format:	Artikel
Sprache:	eng
Schlagworte:	631/326 631/326/171 631/326/2522 631/61/168 631/61/252 Alkanes Alkanes - metabolism Bacillus licheniformis Bacillus licheniformis - isolation & purification Bacillus licheniformis - metabolism Biodegradation, Environmental Enhanced oil recovery Exopolysaccharides High temperature Humanities and Social Sciences Hydrocarbons - metabolism Molasses Molecular weight multidisciplinary Oil Oil and Gas Fields - microbiology Petroleum - metabolism Polysaccharides, Bacterial - metabolism Proteoglycans Reservoirs Science Science (multidisciplinary) Viscosity
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Zusammenfassung:	A novel Bacillus licheniformis strain (DM-1) was isolated from a mature reservoir in Dagang oilfield of China. DM-1 showed unique properties to utilize petroleum hydrocarbons and agroindustrial by-product (molasses) for exopolysaccharide (EPS) production under oil recovery conditions. The DM-1 EPS was proven to be a proteoglycan with a molecular weight of 568 kDa. The EPS showed shear thinning properties and had high viscosities at dilute concentrations (
ISSN:	2045-2322 2045-2322
DOI:	10.1038/s41598-020-65432-z