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Titolo:
INFLUENCE OF PHYTOGENIC SURFACTANTS (QUILLAYA SAPONIN AND SOYA LECITHIN) ON BIO-ELIMINATION OF PHENANTHRENE AND FLUORANTHENE BY 3 BACTERIA
Autore:
SOEDER CJ; PAPADEROS A; KLEESPIES M; KNEIFEL H; HAEGEL FH; WEBB L;
Indirizzi:
KFA JULICH GMBH,FORSCHUNGSZENTRUM,POSTFACH 1913 D-52425 JULICH GERMANY
Titolo Testata:
Applied microbiology and biotechnology
fascicolo: 5, volume: 44, anno: 1996,
pagine: 654 - 659
SICI:
0175-7598(1996)44:5<654:IOPS(S>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOIL; DEGRADATION; FLUORENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
C.J. Soeder et al., "INFLUENCE OF PHYTOGENIC SURFACTANTS (QUILLAYA SAPONIN AND SOYA LECITHIN) ON BIO-ELIMINATION OF PHENANTHRENE AND FLUORANTHENE BY 3 BACTERIA", Applied microbiology and biotechnology, 44(5), 1996, pp. 654-659

Abstract

The influence of two phytogenic surfactants on the elimination of polycyclic aromatic hydrocarbons (PAH) was studied in shaken-batch cultures of three soil bacteria under axenic conditions. At sufficiently high concentrations, quillaya saponin and soybean lecithin solubilized phenanthrene or fluoranthene efficiently. However, complete solubilization of the PAH by lecithin only doubled the maximal rate of eliminationof the two PAH compounds by Pseudomonas 0259, strain MKm (Rhizonomas ?) and Mycobacterium EMI 2. By contrast, quillaya saponin did not improve PAH bioavailability, and in strain MKm it caused significant growth lags above 2.5 g/l. Simultaneously with the elimination of the PAH the bacteria utilized the surfactants as substrates for growth. Intermediate formation of PAH metabolites was noted. The results suggest thatsome phytogenic surfactants might improve PAH bioavailability in rhizospheres.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 15:16:10