Table 3
Antioxidant activities of plant-der ived pigments

Sample	DPPH (IC50)	ABTS (IC50)	Singlet oxygen (IC50)
Eclipta prostrata L.	239.4±12.61)/245.8±21.22)	265.2±11.6/154.9±13.2	320±22.8/>2000
Phellinus linteus	91.9±4.5/297.7±16.9	114.9±10.8/474.3±36.2	190±16.5/>2000
Uncaria gambir Roxburgh	24.2±2.3/274.2±21.4	21.3±1.5/322.0±28.1	120±11.4/>2000
Terminalia chebula Retzius	104.7±6.3/289.4±26.3	115.4±7.8/249.0±18.6	620±45.6/>2000
Ulmus macrocarpa Hance	123.2±5.9/272.4±36.1	542.9±27.6/397.1±33.2	340±30.8/>2000
Rheum officinale Baillon	91.1±8.4/300.3±18.2	51.3±3.6/223.6±20.1	1420±72.8/>2000
Pterocarpus santalinus L.	12.4±1.8/276.4±18.4	16.2±2.0/263.1±18.9	210±14.1/>2000

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