The POVs from the PCHE-added mayonnaise groups were significantly
lower than those of the control, BHT 0.1, and EDTA groups
from week 0 to 10 (Fig. 1). In all samples, POV increased throughout
storage at 25 C from 0.6–0.7 meq/kg in week 0 to 4.3–
13.6 meq/kg in week 10 (Fig. 1A). When compared to the negative
control sample, initial POV developed similarly in all mayonnaise
samples in week 0, but the POVs of the PCHE-added samples were
significantly (p < 0.05) lower than those in the negative control
sample during the storage period. In week 10, the POV order of
all mayonnaise samples was PCHE 0.4 < PCHE 0.2 < BHT 0.2 < PCHE
0.1 < BHT 0.1 < EDTA < control sample.