Table 2
DPPH radical scavenging activity of natural color powder and mixtures (%)

Sample name	Concentration (μg/mL)	Acacia	Cochineal	Catechu	Grapepeel	Persimmon	Gallnut	Clove
Acacia	31.25	16.51±0.141)
	62.5	29.09±0.97
	125	39.81±1.46
Cochineal	31.25	8.46±0.97	6.14±0.59
	62.5	15.11±0.80	8.80±0.37
	125	21.60±1.21	9.34±0.53
Catechu	31.25	29.05±0.84	22.67±1.11	39.95±0.79
	62.5	50.49±1.84	44.34±1.36	64.04±1.51
	125	68.32±0.82	66.49±1.09	78.64±0.90
Grape peel	31.25	14.26±1.05	7.83±0.33	25.03±0.20	11.80±0.43
	62.5	27.35±0.76	13.83±0.22	43.39±0.89	19.21±0.43
	125	45.24±1.33	23.39±0.65	56.58±0.80	30.83±0.31
Persimmon	31.25	7.05±0.53	5.45±0.26	26.74±0.51	10.08±0.33	8.41±0.48
	62.5	20.42±0.56	12.95±0.33	42.45±2.06	16.86±0.21	18.11±0.45
	125	36.86±1.36	23.52±0.07	65.94±0.14	28.88±0.97	31.13±0.99
Gallnut	31.25	29.31±1.27	23.33±0.16	38.91±1.06	24.97±0.70	25.28±0.63	39.68±0.58
	62.5	52.00±1.94	41.84±0.99	62.01±0.83	43.39±0.26	46.06±1.29	65.52±1.13
	125	66.87±0.91	64.97±1.04	78.43±0.69	59.23±0.86	67.56±1.98	77.70±0.26
Clove	31.25	33.93±0.71	29.34±0.73	36.94±1.00	23.66±0.64	23.51±1.02	33.59±1.10	34.94±0.89
	62.5	48.45±1.47	42.49±0.71	59.94±0.61	39.93±0.99	42.63±1.33	59.11±1.20	61.60±1.40
	125	65.43±0.67	60.56±0.85	78.20±1.47	61.90±1.88	65.73±0.67	78.06±1.22	79.62±0.66

¹⁾Each value represents mean±SD (n=3).