was determined using the method described by Ye (2008), with minor modifications. Emulsions 130 g) were centrifuged in a Beckman J2-21 High Speed Cen- trifuge at 15000 rpm in JA-20 rotor type for 1.5 h at 15 °C. The subnatant was fully removed by using a long needle syringe, and then filtered sequentially through a 0.45 and 0.20 um tilter (Min- isart, Sartorius, Germany). The total protein concentration in the subnatant was determined, after appropriate dilution, spectropho- tometrically by using the method of Lowry and others (1951) The surface protein concentration (mg/m was calculated from the difference between the amount of protein used to prepare the on and that measured in the subnatant after centrifugation using the mean surface diameter. D13,21. to calculate the specific surface area of the lipid particles as described by Tcholakova and others (2003)immediately after the preparation, SLP and LLP emulsions were stored at 15 °C in glass test tubes (200 mm height, 20 mm in- ternal diameter) and their appearance was evaluated daily over the storage time. Aliquots of freshly prepared products were stored in polypropy- lene (PP) screw apped test tubes and their pH was monitored during storage to verify that a possible unwanted microbial growth was absent in the systems. The particle size distribution was also t checked weekly in order to detect possible aggregation of the dispersed lipid particles.