3.5. Difference between efficacy of caffeates in mayonnaise and milk
emulsions
The oxidation results of both storage experiments indicated that mayonnaise and milk emulsions without antioxidants added generally oxidised faster than emulsions with caffeic acid or caffeates. Interestingly, the antioxidant capacity of caffeates was different in each emulsion system. Medium chain (butyl, octyl and
dodecyl) caffeates were more effective in delaying the onset of oxidation in mayonnaise emulsions enriched with fish oil whereas in fish oil enriched milk emulsions caffeates with shorter alkyl chain (methyl and butyl) were more efficient.