Figure 4- Ternary melting phase diagram of static crystallized
POP+POS+SOS in pseudo-β’ crystal polymorphic form (adapted from Ghazani
& Marangoni, 2021). The symbols * and + represents the amount of POP,
POS and SOS in 30% and 80% FPO after normalizing, respectively.
Lipp, Simoneau, Ulberth, Anklam, Crews, Brereton, … & Wiedmaier,
(2001) showed that commercial CBEs generally contain a lower amount of
POS, the same amount of SOS, and a higher amount of POP than CB. In our
previous study (Ghazani & Marangoni, 2018), we reported the main TAG
profile of CB as POP 15%, POS 39%, and SOS 28%. Binary mixtures
containing 70% fractionated pequi oil, and 30% fractionated Kpangnan
butter had a TAG composition of 28% POP (higher than POP amount in CB),
4.6% POS (lower than POS amount in CB), and 33% SOS (equal amount than
CB). This mixture displayed melting points of 33 and
34oC after 12 and 60 day storage, respectively, and
crystallized into a stable triclinic β2 form after 12
days at 22oC. This particular binary mixture displayed
the most desirable solid-state characteristics and had potential for
being used as a commercial CBE.