Factors influencing crude oil biodegradation by Yarrowia lipolytica
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 super(4) full factorial design was used to investigate the influence of the independent variables of tempera...
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| Published in: | Brazilian archives of biology and technology Vol. 55; no. 5; pp. 785 - 791 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Instituto de Tecnologia do Paraná (Tecpar)
01-10-2012
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | 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 super(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 28[degrees]C and 250 rpm, respectively. |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 1516-8913 1516-8913 1678-4324 |
| DOI: | 10.1590/S1516-89132012000500019 |