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- Title
Micellar and solubilizing properties of rhamnolipids.
- Authors
Arkhipov, Victor P.; Arkhipov, Ruslan V.; Petrova, Ekaterina V.; Filippov, Andrei
- Abstract
We studied the micellar and solubilizing properties of aqueous solutions of unfractionated rhamnolipids produced by Pseudomonas aeruginosa. We used nuclear magnetic resonance (NMR) diffusometry, dynamic light scattering, and conductometry to measure the critical micelle concentration (CMC) of rhamnolipid solutions and determined the effective hydrodynamic radii of rhamnolipid monomers and micelles. Based on selective measurements of the self‐diffusion coefficients of molecules, performed by NMR diffusometry, the solubilizing properties of rhamnolipids were studied depending on their concentration in solution; aromatic hydrocarbons, benzene, toluene, ethylbenzene, and para‐xylene were taken as solubilizates. On the basis of the measurement results, we estimated the distribution coefficient of the solubilizate between the micellar (solubilized) and free (in the aqueous phase) states and the solubilizing capacity of rhamnolipid micelles.
- Subjects
RHAMNOLIPIDS; CRITICAL micelle concentration; DIFFUSION coefficients; NUCLEAR magnetic resonance; LIGHT scattering
- Publication
Magnetic Resonance in Chemistry, 2023, Vol 61, Issue 6, p345
- ISSN
0749-1581
- Publication type
Article
- DOI
10.1002/mrc.5337