Entrapment of a volatile lipophilic aroma compound (D-limonene) in spray dried water-washed oil bodies naturally derived from sunflower seeds (Helianthus annus)

摘要

Oil bodies are natural emulsions that can be extracted from oil seeds and have previously been shown to be stableudafter spray drying. The aim of the study was to evaluate for the first time if spray dried water-washed oil bodiesudare an effective carrier for volatile lipophilic actives (theflavour compound D-limonene was used as an exampleudaroma compound). Water-washed oil bodies were blended with maltodextrin and D-limonene and spray driedudusing a Buchi B-191 laboratory spray dryer. Lipid and D-limonene retention was 89–93% and 24–27%. Samplesudwere compared to processed emulsions containing sunflower oil and D-limonene and stabilised by either lecithinudor Capsul. Lecithin and Capsul processed emulsions had a lipid and D-limonene retention of 82–89%, 7.7–9.1% andud48–50%, 55–59% respectively indicating that water-washed oil bodies could retain the most lipids and Capsuludcould retain the most D-limonene. This indicates that whilst additional emulsifiers may be required for futureudapplications of water-washed oil bodies as carriers of lipophilic actives, oil bodies are excellent agents for lipidudencapsulation.