5. Conclusions
The substitution of pork fat with soybean oil produced mortadella
with lower SFA and higher PUFA content. The reductions in the
atherogenicity and thrombogenicity indices were proportional to
the amount of soybean oil used in the formulation, such that those indices
were 4- to 5-fold lower in mortadellas made with 100% soybean
oil. Although the substitution of pork fat by soybean oil may have increased
the susceptibility to lipid oxidation, the indicators of oxidation
(TBARS and a* colour coordinate) did not show an increase in
oxidation reactions in mortadellas with higher concentrations of soybean
oil. Based on the physicochemical properties and results of sensory
evaluation, it can be concluded that the preparation of emulsified
products with C. yacare meat has resulted in a quality profile that is
compatible with commercial acceptability, independent of the fat
source used.