The POV of blank sample exceeded standard
of GB10146-2005 at the 6th day,
while the pigment samples in 0.01, 0.05 and the 0.1 mg
mL-1 Vc sample at the 8th day, and the pigment samples
in 0.1 and 0.5 mg mL-1 at the 12th day and 16th day,
respectively, and the pigment’s antioxidant capacity was
higher than Vc when its concentration exceeded 0.1 mg
mL-1. Those data showed the anti-lipid peroxidation capacity
increased with the increase of pigment concentration
and the pigment could efficiently prolong the lard’s
shelf life and prevent its oxidant.