Table 3.
Antioxidant activities of the plant-der ived pigments

Sample	DPPH IC50	ABTS+ IC50	Singlet oxygen IC50
Caesalpinia sappan L	19.11)/2072)	31.8/98.3	120/-
Rumex crispus L.	64.4/310.6	85.1/314.15	190/-
Aphis chinensis	8.5/272.8	8.0/619.2	210/-
Coptis chinensis	356.9/151.1	213.4/73.9	620/-
Phellodendron amurense	677.6/191.7	405.8/98.1	340/-
Rubia akane Nakai	149.2/145.1	149.8/85.4	1420/-
Areca catechu	78.0/138.9	136.6/64.3	210/-
Lithospermum carolinense	703.2/278.2	744.1/509.3	1590/-
Curcuma longa Radix	3400/189.3	1600/146.2	3570/-
Gardenia jasminoides var. grandiflora	2100/269.4	2200/272.9	580/-

IC₅₀ value of hot water extracts (μg/mL).
IC₅₀ value of floral water (μL/mL).