Universitat de Barcelona
2020-07-24T07:43:35Z
2020-07-24T07:43:35Z
2017-01-01
2020-07-24T07:43:36Z
Recently it has been demonstrated that catanionic mixtures of oppositely charged surfactants have improved physicochemical-biological properties compared to the individual components. Isotherms of mixtures of an anionic biosurfactant (lichenysin) and a cationic aminoacid surfactant (C-3(LA)(2)) indicate a strong interaction suggesting the formation of a new 'pseudo-surfactant'. The antimicrobial properties of the mixture lichenysin and C-3(LA)(2) M80:20, indicate a synergistic effect of the components. The mechanism of action on the bacterial envelope was assessed by flow cytometry and Transmission Electron Microscopy. (C) 2016 Elsevier B.V. All rights reserved. Keywords: Antimicrobial properties; Arginine; Escherichia coli; Flow cytometry; Gemini surfactants; Lichenysin; Listeria nonocytogenes; Potassium leakage; Transmission electron microscopy.
Article
Versió acceptada
Anglès
Agents tensioactius; Aminoàcids; Microbiologia; Surface active agents; Amino acids; Microbiology
Elsevier B.V.
Versió postprint del document publicat a: https://doi.org/10.1016/j.colsurfb.2016.10.008
Colloids and Surfaces B-Biointerfaces, 2017, vol. 149, p. 38-47
https://doi.org/10.1016/j.colsurfb.2016.10.008
cc-by-nc-nd (c) Elsevier B.V., 2017
http://creativecommons.org/licenses/by-nc-nd/3.0/es
