Microbial degradation of phenanthrene by addition of a sophorolipid mixture

Schippers, C.; Gessner, K.; Müller, Torsten; Scheper, Thomas

doi:10.1016/s0168-1656(00)00304-7

Cited by 102 publications

(48 citation statements)

References 20 publications

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“…The use of these derived-materials may avoid some of the difficulties often associated with bioaugmentation, such as the need for survival of live microbial inoculants in harsh field environments. However, there still may be problems with biosurfactant toxicity 199 and effectiveness, 46 along with the potential hazards inherent in delivery of enzymes to the subsurface while attempting to minimize enzymatic sorption to soil solids and/or inactivation.…”

Section: Bioaugmentation With Microbial-derived Materialsmentioning

confidence: 99%

New Approaches for Bioaugmentation as a Remediation Technology

Gentry

Rensing

Pepper

2004

Critical Reviews in Environmental Science and Technology

287

124

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Section: Bioaugmentation With Microbial-derived Materialsmentioning

confidence: 99%

New Approaches for Bioaugmentation as a Remediation Technology

Gentry

Rensing

Pepper

2004

Critical Reviews in Environmental Science and Technology

287

124

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“…Most authors claim that the main reason behind CMC increase is the sorption of surface-active compounds on mineral and organic constituents of soil (Schippers et al 2000). Sorption results in the removal of biosurfactants from the solution.…”

Section: Resultsmentioning

confidence: 99%

Application of biosurfactants for heavy netals leaching from immobilized activated sludge / Zastosowanie biosurfaktantów do wymywania metali ciężkich z immobilizowanego osadu czynnego

Kuczajowska-Zadrożna¹,

Filipkowska²,

Jóźwiak³

2015

Archives of Environmental Protection

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This study was undertaken to determine the effectiveness of biosurfactants -saponin, tannin and rhamnolipids JBR 515 and 425, for the removal of cadmium, zinc and copper from activated sludge immobilized in 1.5% sodium alginate with 0.5% polyvinyl alcohol. We also established the impact of pH value on biosorbent regeneration with the analyzed biosurfactants and determined the critical micelle concentration (CMC) in solutions containing the biosorbent and biosurfactant and in exact samples with heavy metals. Saponin exhibited the highest effectiveness of metals leaching at pH 1-5, and rhamnosides at pH 5-6. In addition, the study demonstrated a signifi cant effect of the ratio of biosorbent mass to washing agent volume (m/V) on the effectiveness of metals leaching. Of the biosurfactants analyzed, saponin was ca. 100% effective in leaching zinc and copper. The effectiveness of the other biosurfactants was lower and depended on the metal being leached.

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“…Según Volkering et al (1998) los mejores parámetros para la selección de un surfactante para la remediación biológica, es la tensión interfacial y la desorción del contaminante. Los biosurfactantes más estudiados en biorremediación son los ramnolípidos, sintetizados por Pseudomona aeruginosa, la surfactina (Olivera et al 2000) los lipopéptidos (Tecon y Van der Meer 2009) y los soforolípidos (Schippers 2000). En estudios a escala de laboratorio Yin et al (2008), demostraron que el uso de ramnolípidos resultaba más eficiente para la remediación de efluentes contaminados con petróleo que los surfactantes comerciales Tritón o Tween.…”

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Biosurfactantes y su papel en la biorremediación de suelos contaminados con plaguicidas

Cruz¹,

Sánchez-Salinas²,

Ortiz-Hernández³

2013

Rev Latinoam Biotecnol Ambient Algal

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ResumenLos biosurfactantes (BS) son un grupo de moléculas de origen microbiano que se caracterizan por ser anfipáticas, es decir que sus moléculas presentan dos partes diferentes, una hidrofóbica y otra hidrofílica. Son un grupo estructuralmente diverso de moléculas tensoactivas, que presentan en general menor toxicidad y mayor biodegradabilidad que los surfactantes sintéticos. Entre las aplicaciones más estudiadas de los BS están aquellas relacionadas con la industria del petróleo y la bioremediación de sitios o residuos contaminados con hidrocarburos. No obstante, los biosurfactantes pueden ser utilizados para otro tipo de compuestos xenobióticos, como es el caso de los plaguicidas. Estos compuestos permiten controlar la proliferación de plagas y enfermedades de los cultivos y del ganado, así como reducir o evitar las pérdidas en la producción de alimentos y contribuir al control de los vectores de diversas enfermedades. No obstante la importancia económica de los plaguicidas, es necesario destacar que su aplicación indiscriminada y sin control ha generado diversos problemas como intoxicación a seres humanos, efectos carcinogénicos, teratogénicos y mutagénicos, además de numerosos problemas ambientales como contaminación de mantos freáticos, aguas continentales y costeras; contaminación del suelo y bioacumulación en las cadenas alimentarias. Generalmente los plaguicidas son de naturaleza hidrofóbica, por lo que el uso de los BS puede ser prometedor en la remediación de sitios contaminados o en el tratamiento biotecnológico de residuos de plaguicidas. Palabras clave: biosurfactante, plaguicida, biorremediación, solubilidad AbstractBiosurfactants (BS) are a group of microbial molecules that are characterized as amphipathic, meaning that have two distinct parts, one hydrophobic and the other hydrophilic. These compounds are a group structurally diverse which generally have lower toxicity and higher biodegradability than synthetic surfactants. Typical applications of BS studied are those related to oil and bioremediation of sites contaminated with hydrocarbons or residues. However, BS can be used for other types of xenobiotics, such as pesticides. These compounds can control the spread of pests and diseases of crops and livestock, as well as reduce or prevent losses in food production and contribute to the control of vectors of various diseases. Despite the economic importance of pesticides, it should be noted that the indiscriminate and uncontrolled application has generated various problems like toxicity to humans, carcinogenic, teratogenic and mutagenic

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Microbial degradation of phenanthrene by addition of a sophorolipid mixture

Cited by 102 publications

References 20 publications

New Approaches for Bioaugmentation as a Remediation Technology

New Approaches for Bioaugmentation as a Remediation Technology

Application of biosurfactants for heavy netals leaching from immobilized activated sludge / Zastosowanie biosurfaktantów do wymywania metali ciężkich z immobilizowanego osadu czynnego

Biosurfactantes y su papel en la biorremediación de suelos contaminados con plaguicidas

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