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Co‐surfactant, co‐solvent, and hydrotropic properties of some common cooling agents
Author(s) -
LarcineseHafner Valeria,
Tchakalova Vera
Publication year - 2018
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/ffj.3449
Subject(s) - chemistry , pulmonary surfactant , aqueous solution , solvent , solubility , nonionic surfactant , organic solvent , organic chemistry , chemical engineering , biochemistry , engineering
Cooling agents are small organic molecules known to evoke a sensation of cold by interaction with the transient receptor. In the present study, we demonstrate experimentally that some cooling agents could behave as hydrotropes in aqueous solutions in the absence of surfactants, and also as co‐surfactants/co‐solvents in aqueous solutions in the presence of a surfactant forming an interfacial film. The hydrotropy and co‐surfactancy/co‐solvency effect depends strongly on the type of perfumery ingredient. The hydrotrope concentration, the concentration at which the water solubility of the perfumery compound is enhanced, is surprisingly low, in the mmol/L range.