Table 4. DPPH radical scavenging activity of broiler breast meat during freezing storage at −18°C for 180 days

Storage days	DPPH radical scavenging activity (%)
Storage days	T₁	T₂	T₃	T₄	T₅	T₆
0	57.1±0.05^U	66.9±0.05^P	75.4±0.05^K	79.3±0.04^FG	83.2±0.04^BC	85.1±0.05^A
30	56.6±0.05^U	66.2±0.07^PQ	75.2±0.05^KL	78.2±0.05^G-I	81.4±0.04^DE	84.1±0.04^AB
60	55.1±0.06^V	65.2±0.05^QR	73.0±0.05^MN	77.1±0.04^IJ	81.3±0.04^DE	83.3±0.06^BC
90	54.8±0.04^V	64.3±0.06^RS	73.2±0.04^MN	76.3±0.03^JK	80.4±0.06^EF	82.2±0.05^CD
120	53.0±0.04^W	64.1±0.03^RS	71.1±0.05^O	75.2±0.05^KL	79.2±0.05^FG	80.7±0.04^E
150	52.3±0.04^WX	63.1±0.05^S	70.28±0.04^O	73.9±0.05^LM	77.6±0.03^H-J	79.1±0.03^FG
180	51.2±0.05^X	61.7±0.04^T	70.0±0.03^O	72.6±0.04^N	77.6±0.05^H-J	78.7±0.05^GH

T₁, basal feed (control); T₂, 50 mg bioactive peptides/kg of feed; T₃, 100 mg bioactive peptides/kg of feed; T₄, 150 mg bioactive peptides/kg of feed; T₅, 200 mg bioactive peptides/kg of feed, T₆, 250 mg bioactive peptides/kg of feed.
Mean values with different superscripts differ significantly.
All values expressed as mean±SD (n=3).