Lipid molarity affects liquid/liquid aroma partitioning and its dynamic release from oil/water emulsions

Lipids. 2003 Oct;38(10):1075-84. doi: 10.1007/s11745-006-1163-0.

Abstract

Initial dynamic flavor release from oil/water emulsions containing different TAG phases was studied using a computerized apparatus and thermodesorption GC. A significant influence of lipid molarity on liquid/liquid partitioning and release of some flavor compounds was found. The release of the least hydrophobic compounds was not affected by any type of lipid. Hydrophobic compounds showed a positive correlation between their release and decreasing molarity of the lipid phase, that is, with increasing number of lipid molecules; only the most hydrophobic compounds did not show such a correlation. A strong linear correlation between low-melting TAG/water partition coefficients and lipid phase molarity was validated by volatile partition data of C6, C11, and C16 alkane/water systems. Lipid phase transition from the liquid to solid state did not affect flavor partitioning and release. Neither experimental nor theoretical octanol/water partition coefficients agreed with experimental TAG/water and alkane/water partition coefficients.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Emulsions / pharmacokinetics*
  • Lipids / pharmacokinetics
  • Oils, Volatile / pharmacokinetics*
  • Volatilization
  • Water / metabolism*

Substances

  • Emulsions
  • Lipids
  • Oils, Volatile
  • Water