Characterization of sodium caseinate/Hydroxypropyl methylcellulose concentrated emulsions: Effect of mixing ratio, concentration and wax addition

Abstract The effects of mixing ratio (1:1, 2:1 and 4:1 sodium caseinate: Hydroxypropyl methylcellulose, CN:HPMC), HPMC concentration (0, 0.6 and 1.2 wt%), CN concentration (0, 1.25 and 2.5) and beeswax addition (3%) on the physical stability of concentrated O/W emulsions (φoil = 0.6) were investigated. The emulsion stability, particle size distribution, microstructure and rheological properties were measured. The results showed that emulsion stability was significantly improved with increasing HPMC concentration (p value