?DISTRIBUTION OF SORBIC ACID IN OIL-WATER AND OIL-WATER-SURFACTANT OF DODECYL TRIMETHYL AMMONIUM-BROMIDE (DoTAB) SYSTEMS
Keywords:
Sorbic acid, Oil water surfactant, Dodecyltrimethyl ammonium bromide (DoTAB)Abstract
The influence of synthetic surfactant or emulsifierdodecyltrimethyl ammonium-bromide (DoT AB O.4M) on the distribu-
tion of sorbic acid (2.5-40mM) was studied in oil (non-aqueous phase) and water (aqueous phase). The study was conducted
in two model systems, oil-water, and oil-water-DoTAB (pH 2, temp 25°C). in oil water maximum solubility of sorbic acid
in water was 22-28%, while in oil water-Do'T AB the distribution in the aqueous phase was increased to 74-80% due to the
presence of surfactant micelles. Foods are multiphase system, where microorganisms exist in the aqueous phase and a large
part of sorbic acid is distribute in non-aqueous phase. This investigation suggests that the presence of food emulsifiers in
food can increase the distribution of sorbic acid in aqueous phase.
