Emulsion stability was determined by monitoring the
extent of droplet coalescence induced by accelerated
creaming. The extent of the coalescence was determined
from the ratio between observed SSA after centrifugation
(SSAac) and before centrifugation (SSAbc). Fig. 9 shows the
effect of caseinate concentration in solution on emulsion
stability. At caseinate concentrations higher than 0.1% w/w,
emulsions were stable to coalescence. Thus, at lower
caseinate concentrations as the interfacial film is not
saturated by the protein, both bridging flocculation and
coalescence contribute to the emulsion instability