Isolation and Characterization of Gasoline-Degrading Yeasts from Refined Oil-Contaminated Residues

dc.creatorGoulart, Guimária Geraldina
dc.creatorCoutinho, Joana de Oliveira Pinto Azeredo
dc.creatorMonteiro, AS
dc.creatorSiqueira Filho, Ezequias Pessoa
dc.creatorSantos, Vera Lúcia dos
dc.date2022-01-28T15:37:50Z
dc.date2022-01-28T15:37:50Z
dc.date2014
dc.date.accessioned2023-09-26T20:59:06Z
dc.date.available2023-09-26T20:59:06Z
dc.identifierGOULART, Guimária Geraldina et al. Isolation and Characterization of Gasoline-Degrading Yeasts from Refined Oil-Contaminated Residues. Goulart et al., J Bioremed Biodeg 2014, 5:2 DOI: 10.4172/2155-6199.1000214
dc.identifier2155-6199
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/50936
dc.identifier10.4172/2155-6199.1000214
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8867266
dc.descriptionCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO
dc.descriptionHydrocarbon-degrading yeasts were isolated from three sites contaminated with products of refined petroleum originating from an oily residue treatment Brazilian company. A selective enrichment technique was used by supplementing medium with gasoline, which resulted in eleven isolates; two identified as Rhodotorula mucilaginosa, one as Rhodosporidium diobovatum, four as Meyerozyma (Pichia) guilliermondii, two as Wickerhamia sp., and two as Meyerozyma sp. The strains were evaluated for their growth capacity in medium containing 1% (v/v) gasoline, kerosene or lubricating oil as the only carbon source; the largest values for cellular biomass and growth rates (μ) were observed with gasoline supplementation. The strains were tolerant to aromatic (toluene and xylene) and aliphatic (hexene and n-heptane) compounds, which are part of the composition of gasoline, at concentrations up to 30 mM toluene (0.3% v/v), 20 mM xylene (0.25% v/v), 80 mM n-heptane (1.17% v/v) and 100 mM hexane (1.33% v/v). The R. mucilaginosa S47 and Meyerozyma sp. SP1 strains showed the greatest degradation percentages of gasoline, and have the potential to be used in the bioremediation of gasoline-contaminated environments.
dc.formatapplication/pdf
dc.languageeng
dc.publisherOMICS International
dc.rightsrestricted access
dc.subjectTolerance to hydrocarbons
dc.subjectYeasts
dc.subjectGasoline
dc.subjectBioremediation
dc.titleIsolation and Characterization of Gasoline-Degrading Yeasts from Refined Oil-Contaminated Residues
dc.typeArticle


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