Formulation of α-linolenic acid microemulsion free of co-surfactant

A novel class of α-linolenic acid-in-water microemulsion free of co-surfactant was investigated as potential food delivery systems. Rough demarcation within the transparent region was deduced from the results of conductivity and polarizing optical microscopy. The microemulsion mean hydrodynamic diameter and characterization were determined by dynamic light scattering and negative-staining TEM. The location of ALA molecules in the microemulsion formulations was determined by 1H NMR spectroscopy.