Isolation and Characterization of Biosurfactant-Producing Bacteria
(Sprache: Englisch)
Petroleum-polluted environmental samples were collected to isolate and characterize biosurfactant-producing bacteria. Culturing of the collected samples in LB-broth and enrichment in chemically defined medium (CDM) with various carbon sources yielded 51...
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Petroleum-polluted environmental samples were collected to isolate and characterize biosurfactant-producing bacteria. Culturing of the collected samples in LB-broth and enrichment in chemically defined medium (CDM) with various carbon sources yielded 51 strains, some of which produced biosurfactants/bioemulsifiers when challenged with crude oil as a sole carbon source. The I-15 isolate, a Gram-positive, motile bacillus, emulsified crude oil in CDM without reduction in surface tension. Infrared spectroscopy and thin layer chromatography suggested a lipopeptide structure for the crude biosurfactant.Partial sequences of 10 16S rDNA gene clones from the I-15 strain were highly similar to those of various members of the family Bacillaceae. The I-15 strain is a promising biosurfactant producer and is probably an active indigenous crude oil degrader. Biosurfactant production is accompanied by morphological and physiological alterations. The I-15 strain possesses intragenomic heterogeneity in the rrn (RNA) operons.
Bibliographische Angaben
- Autor: Israa S. Al-Rowaihi
- 2015, 144 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: LAP Lambert Academic Publishing
- ISBN-10: 3659291129
- ISBN-13: 9783659291128
Sprache:
Englisch
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