formulation Centrifugation cycles Thermic stress (±1°C)
    40 45 50 55 60 65 70 75 80
PEG-30 castor oil+ SPAN® 80 N N N N N N N N N N
PEG-30 castor oil+ SPAN® 80 N N N N N N N N N N
PEG-40 castor oil+ SPAN® 80 OS N N N N N N N N N
PEG-40 castor oil+ SPAN® 80 OS N N N N N N N N N
PEG-60 castor oil+ SPAN® 80 OS LC LC LC LC LC LC LC LC LC
PEG-60 castor oil+ SPAN® 80 OS Cr Cr Cr Cr Cr Cr Cr Cr Cr
TWEEN® 80+ SPAN® 80 OS _ _ _ _ _ _ _ _ _
TWEEN® 80+ SPAN® 80 OS _ _ _ _ _ _ _ _ _
OS= phase separation; N= normal (stable); LC= light cremeation; Cr= cremeation
Table 8: Stability results for centrifugation and thermic stress evaluation for PFO emulsions.