Table 6 Effects of Godulbaegi (Youngia sonchifolia M.) water extract reacted with active oxygen species and metal iron on lipid oxidation in oil emulsion

Element1)	Samples (TBARS (mg MDA/L reaction mixture))
	Leaf		Root
	October	December	October	December
	KO₂	0.25±0.032)^a3)	0.20±0.02^a	0.21±0.02^a	0.15±0.01^b
	H2O2	0.24±0.02^a	0.25±0.02^a	0.15±0.01^a	0.12±0.01^a
·OH	0.24±0.03^a	0.25±0.03^a	0.15±0.02^b	0.14±0.02^b
Fe²⁺	0.21±0.03^a	0.15±0.01^b	0.16±0.02^b	0.15±0.02^b
Cu²⁺	0.25±0.03^a	0.21±0.02^a	0.13±0.01^b	0.15±0.01^b

KO₂, 4 mM KO₂; H₂O₂, 4 mM H₂O₂; Fe²⁺, 4 mM FeCl₂; ·OH, 4 mM H₂O₂+4 mM FeCl₂ ; Cu²⁺, 4 mM CuSO_4.
Each value is expressed as mean±SD, n=3.
Mean±SD with different superscript within a row are significantly different (p<0.05) by Duncan’s multiple range test.