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| Lima, João Marcelo Silva; Pereira, Jose Odair; Batista, Ieda Hortêncio; Junior, Raimundo Carlos Pereira; Barroso, Hileia dos Santos; Costa Neto, Pedro de Queiroz; Jackisch Matsuura, Ani Beatriz; França, Suzelei de Castro; Azevedo, João Lúcio. |
| Endophytic bacteria isolated from Eichhornia crassipes (Mart) Solms., collected in oil contaminated wastewater of effluent generated by Petrobras refinery in Manaus were investigated to determine their potential for producing biosurfactants. Assay with 2.6-dichlorophenol indophenol (DCPIP) indicator to verify hydrocarbon biodegradation activity; oil emulsification test; drop-collapse method; surface tension and growth curve of biosurfactant production. The M87 Microbacterium sp. strain chosen for this work was identified by the sequencing of the rDNA region and the chemical characterization was performed by FTIR, UFLC/MS and 1H RMN techniques. The selected bacterial isolate provided 3g L-1 of biosurfactant, using diesel oil as sole carbon source, being... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Multidisciplinar Biotecnologia Ambiental bioremediation; Eichhornia; Diesel oil. Biotecnologia ambiental. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/33842 |
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| Souza, Hilton Marcelo de Lima; Barreto, Lindimar Rosas; Mota, Adolfo José da; Oliveira, Luiz Antônio de; Barroso, Hileia dos Santos; Zanotto, Sandra Patricia. |
| Tolerance to Polycyclic Hydrocarbons Aromatic (PAHs) is considered an important characteristic when assessing the bioremediation potential of microorganisms. Given this, the objective of this research was to assay filamentous fungi from the Amazon region, isolated from sediments with differents levels of contamination by PAHs, for tolerance to phenanthrene and pyrene. To achieve this, fungal cultures plugs (5 mm), obtained after 7 days growth, were transferred to petri dishes containing 20% Sabouraud dextrose agar medium, after surface innoculation with phenanthrene and pyrene crystals, separately. Radial mycelial growth was evaluated after 10 days at five different concentration levels for each contaminant and control group, all in triplicate for each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.12.00.00-9 phenanthrene; Pyrene; Fungal growth inhibition; Amazon. Microbiologia ambiental. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34709 |
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