Antioxidant and Preventive Effects of Extract from Nymphaea candida Flower on In Vitro Immunological Liver Injury of Rat Primary Hepatocyte Cultures

Table 2

DPPH radical scavenging activities of 13 phenolic compounds from NCE.

Compounds	IC50 (𝜇g/mL)
Gallic acid (1)	1.78
Gallic acid methyl ester (2)	2.21
p-Digalloyl acid and m-digalloyl acid (3)	2.53
Quercetin (4)	1.97
Kaempferol (5)	5.56
Quercetin 3-methyl ether (6)	4.78
Tricin 7-methyl ether (7)	6.26
Astragalin (8)	63.53
Quercetin 3-methyl ether 3′-O-xyloside (9)	28.20
Quercetin 3′-O-xyloside (10)	20.11
Isoquercitrin (11)	9.42
Rutin (12)	16.62
Kaempferol - 3-O-rutinoside (13)	81.22