Antioxidant Activity and Antibacterial Effects on Clinical Isolated Streptococcus suis and Staphylococcus intermedius of Extracts from Several Parts of Cladogynos orientalis and Their Phytochemical Screenings

Table 1

Total phenolic and total flavonoid contents and in vitro antioxidant activity of extracts from various parts of C. orientalis.

Sample	Yield (%w/w)	Total phenolic content; (g GAE/100 g extract)	Total flavonoid content; (g RE/100 g extract)	Antioxidant activity; (EC50, mg/mL)
COLD	9.22	5.86 ± 0.38^a	5.20 ± 0.85^a	0.35 ± 0.00^a
CORD	5.52	6.05 ± 0.53^a	4.82 ± 0.47^a	0.34 ± 0.01^a
COSD	2.26	3.60 ± 0.14^b	3.15 ± 0.60^a	0.43 ± 0.01^b
COLE	3.10	7.21 ± 0.28^c	11.51 ± 2.02^b	0.48 ± 0.01^c
CORE	4.50	3.30 ± 0.25^b	2.84 ± 0.88^a	0.31 ± 0.01^d
COSE	4.42	3.57 ± 0.09^b	3.78 ± 1.52^a	0.27 ± 0.01^e
Ascorbic acid		—	—	2.53 ± 0.42 10^−3
Rutin		—	—	6.48 ± 0.18 10^−3
Scopoletin		—	—	0.19 ± 0.01
Chettaphanin I		—	—	2.40 ± 0.19

Different letters in the same column are significantly different ().