No improvement was seen in meltdown resistance for samples
formulated with RBW oleogel (10% RBW) compared to HOSO
(Figure 2). No significant (P > 0.05) difference in meltdown
stability was observed between RBW oleogel ice cream samples
formulated with different concentrations of emulsifier. All samples
melted considerably faster than the milk fat control.
The expected relationship between protein adsorption, fat
destabilization, and meltdown stability presented in numerous studies and reviews (Bolliger and others 2000b; Barfod 2001;
Koxholt and others 2001; Muse and Hartel 2004) was not observed
in RBW oleogel samples formulated with Polmo emulsifier.
This suggests that the destabilization phenomena observed
were not sufficient to establish a 3-dimensional network structure,
perhaps due to a lack of interaction with air interfaces or a lack of
interaction amongst droplets.