Effect of emulsifiers on solid fat content and melting point
Fig. 1 shows the SFC profile of the interesterified fat containing
different concentrations of STS and SE. The SFC curve of the interesterified
fat without the addition of an emulsifier showed an unusual
behavior, demonstrated by a considerable decline in the SFC
curve from 10 to 15 C and a significant increase from 20 to 25 C,
indicating sample recrystallization. This result is consistent with
prior observations by Ribeiro et al. (2009), who reported similar
behavior in various interesterified blends of soybean oil and fully
hydrogenated soybean oil at fully hydrogenated soybean oil concentrations
up to 20 g/100 g, suggesting the need for additional
crystallization time to complete the stabilization of the blends