Independent factor Levels Treatment codes
Within initial W/O nanoemulsion OLEN
Within W/O/W double emulsions stabilized by single WPC OLENW
Nano-encapsulation method Within W/O/W double emulsions stabilized by WPC – Pectin OLENWP
Un-encapsulated olive leaf extract OLE
Antioxidant concentration 100, 200, 300 mg/kg for OLE containing samples –
100 and 200 mg/kg for TBHQ containing samples