Our previous study has demonstrated the protective effects of olive leaf extracts on the oxidation of pork patties
from n−3 fatty acid-enriched meat during refrigerated storage. The target of the present study was to examine
these effects during frozen storage. Results showed that frozen storage accelerated (P= 0.05) both lipid and protein
oxidation in pork patties, but an addition of olive leaf extract at 200 mg gallic acid equivalent/kg improved
sensory attributes by delaying oxidation of lipids (reduction (P = 0.05) of conjugated dienes, hydroperoxides
and malondialdehyde), and of proteins (reduction (P = 0.05) of protein carbonyls and inhibition (P = 0.05)
of the decrease of protein sulfhydryls).