Table 2. DPPH radical scavenger activity of extracts of Pyrus pyrifolia Nakai (PP), malt (MA), Ziziphus jujuba Mill. (ZJ), Leonurus japonicus Houtt. (LJ), and Scutellaria baicalensis (SB) and their mixtures (unit: μg/mL)

Extracts	Water extract				EtOH extract
	100	250	500	1,000	100	250	500	1,000
PP	59.6±0.3g	63.2±0.7f	65.6±0.4h	74.2±0.1g	56.3±1.1ef	56.4±0.9f	63.7±0.8g	72.0±0.7f
MA	62.3±0.4d	64.7±0.5d	69.4±0.8f	75.2±0.3f	55.7±1.0fg	55.6±0.9g	61.0±0.8h	67.1±0.6g
ZJ	60.5±0.4f	63.9±0.2d	67.8±1.3g	74.6±0.6fg	55.3±0.9g	55.5±0.7g	60.2±1.0i	66.0±0.7h
LJ	46.8±1.0h	49.0±1.0g	57.3±0.3i	64.4±1.0h	57.1±0.3de	65.2±0.7b	73.0±0.6e	75.5±1.1e
SB	69.6±0.8a	70.1±0.3a	75.7±0.1b	84.4±0.7b	64.4±0.6a	73.8±0.5a	88.3±0.3a	90.1±1.5a
Mixture 1	63.7±0.9b	70.4±0.2a	78.7±0.3a	84.8±0.2b	59.2±0.8b	63.3±0.9c	76.1±0.8c	84.4±0.4b
Mixture 2	61.6±0.2e	67.0±0.3c	72.7±0.3d	83.1±0.1c	58.2±1.2c	62.6±0.9c	74.6±0.2d	84.4±0.3b
Mixture 3	63.0±0.3c	69.4±0.2b	73.7±1.2c	86.2±0.1a	59.8±0.7b	65.5±0.8b	78.3±0.4b	89.8±1.0a
Mixture 4	61.8±0.6e	66.7±0.3c	71.4±0.7e	80.5±0.8d	57.1±0.9de	59.5±0.9e	68.2±1.1f	81.9±0.4d
Mixture 5	62.8±0.4c	65.0±1.6d	70.0±0.6f	78.0±0.8e	57.8±1.0cd	61.5±1.0d	74.6±0.7d	82.9±0.4c
Ascorbic acid	1	2.5	5	10	25	50	100	250
	32.5±0.4c	64.5±0.6b	91.2±0.9a	88.9±1.2a	88.7±1.2a	90.1±1.5a	88.7±1.1a	89.1±1.2a