2008
DOI: 10.2516/ogst:2008037
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Biosurfactants Production from Low Cost Substrate and Degradation of Diesel Oil by a Rhodococcus Strain

Abstract: Résumé -Production de biosurfactants sur un substrat économique et dégradation du gasoil par une souche du genre Rhodococcus -L'aptitude d'une souche bactérienne du genre Rhodococcus à produire des agents tensioactifs à partir d'une huile de friture résiduelle de tournesol (RSFO) a été testée en milieu non renouvelé. Durant la culture avec RSFO comme seule source de carbone, à la concentration de 3 % (vol/vol), la souche bactérienne a synthétisé des substances de nature extracellulaire qui induisent une émulsi… Show more

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Cited by 38 publications
(27 citation statements)
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“…Biomass concentration was determined by direct optical density (OD) measurements at 600 nm, as described by Sadouk et al (2008). A Shimadzu UV-1700 spectrophotometer was used to determine the OD of the cultures, and each measurement was performed in triplicate.…”
Section: Methodsmentioning
confidence: 99%
“…Biomass concentration was determined by direct optical density (OD) measurements at 600 nm, as described by Sadouk et al (2008). A Shimadzu UV-1700 spectrophotometer was used to determine the OD of the cultures, and each measurement was performed in triplicate.…”
Section: Methodsmentioning
confidence: 99%
“…Compared to the available literature, similar CMC values were found for biosurfactants produced by Flavobacterium sp. on glucose as the carbon source (CMC = 300 mg L −1 ) [32] and by a Rhodococcus strain using residual sunflower frying oil as substrate (CMC = 287 mg L −1 ) [33].…”
Section: Biosurfactant Production Separation and Characterizationmentioning
confidence: 99%
“…The cell bound biosurfactants are able to reduce the surface tension and seem to be produced only on hydrocarbon substrates while the extracellular bioemulsifiers are produced also on soluble substrates [12,24,32,33]. Table 1 displays some examples of Rhodococcus isolates with the indications of the chemical structures produced, the carbon substrates used and the position of the products.…”
Section: Biosynthetic Pathwaysmentioning
confidence: 99%
“…R. erythropolis 16 LM.USTHB converted residual sunflower frying oil, a cheap renewable substrate, into extracellular glycolipids lowering the surface tension of the crude broth down to 31.9 mN/m [33]. During a screening study of biosurfactant producers on renewable low-cost substrates, Ruggeri et al [34] isolated Rhodococcus sp.…”
Section: Biosynthetic Pathwaysmentioning
confidence: 99%