Soybean Oil Characterization
The chemical properties of the purified and unpurified soybean oils are shown in Table 1. As can be seen, the purification process did not affect the composition of soybean oil fatty acids. The stripped soybean oil contained an insignificant amount of hydroperoxides, phenolic compounds, and tocopherols, showing the minor components’ efficient removal that may interfere with the antioxidant compounds.