Factors influencing crude oil biodegradation by Yarrowia lipolytica
AUTOR(ES)
Ferreira, Tatiana Felix, Coelho, Maria Alice Zarur, Rocha-Leão, Maria Helena Miguez da
FONTE
Braz. arch. biol. technol.
DATA DE PUBLICAÇÃO
2012-10
RESUMO
Yarrowia lipolytica is unique strictly aerobic yeast with the ability to efficiently degrade hydrophobic substrates such as n-alkenes, fatty acids, glycerol and oils. In the present work, a 2(4) full factorial design was used to investigate the influence of the independent variables of temperature, agitation, initial cell concentration and initial petroleum concentration on crude oil biodegradation. The results showed that all variables studied had significant effects on the biodegradation process. Temperature, agitation speed and initial cell concentration had positive effects, and initial petroleum concentration had a negative effect. Among the crude oil removal conditions studied, the best temperature and agitation conditions were 28ºC and 250 rpm, respectively.
Documentos Relacionados
- Extracellular RNase produced by Yarrowia lipolytica.
- Factors Influencing the Production of Lipase by Mycotorula lipolytica1
- Production of bioemulsifiers by Yarrowia lipolytica in sea water using diesel oil as the carbon source
- Biodegradation of crude petroleum oil and environmental pollutants by Candida tropicalis strain
- Renewable resources for biosurfactant production by yarrowia lipolytica