DOI: 10.17265/2159-5828/2012.07.001
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Patrícia C. Bernardes, Emiliane A. Araújo, Marcia C. T. R. Vidigal, Nélio J. Andrade, Luis A. Minim, Valéria P. R. Minim

Abstract: Biological and synthetic surfactants were compared in terms of their ability to reduce interfacial tension, change the thermodynamic characteristics of a pre-conditioned surface, and to modify the rheological properties of their respective formulations at two different temperatures. Both classes of surfactants were able to reduce the interfacial tension of their formulations to a similar level. However, the biosurfactants were more effective than the synthetics surfactants. Biosurfactants also altered the surf…

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