Table 2. Yields and DPPH radical scavenging activities of the solvent extracts from green tea (Camelia sinensis) leaf according to ethanol concentrations and heat treatment

Group	Yield (g/100 g, dry)	EC50 value2) (μg/mL)
Con-DW	21.4±0.4c3)	75.4±0.2b
25% EOH	27.4±0.2b	49.0±0.3c
50% EOH	27.1±0.1b	34.9±2.2e
75% EOH	26.4±0.8b	41.4±0.5d
CON-DW-H1)	27.1±0.5b	86.6±1.1a
25% EOH-H	31.4±2.1a	50.5±2.0c
50% EOH-H	27.2±0.8b	37.4±1.4e
75% EOH-H	25.6±0.4b	42.6±0.3d

Heat treatment was conducted at 121°C for 15 min.
Effective concentration possessing 50% scavenging activity for DPPH radical.
All values are mean±SD (n=3) and different superscripts within each column are significantly different (p<0.05) by Tukey test.