Table 3.

Polyphenols present in different N. alba extracts.

Polyphenols	Part of Plant
	Positive (+) or Negative (−)
	Flower	Leaf	Stem	Root
HHDP-hexoside	+	+	+	+
Catechin (+)	-	+	+	+
Chlorogenic acid	+	+	-	-
Corilagin	+	+	+	+
Vanillic acid	+	+	+	+
Caffeic acid	+	+	+	+
Tannic acid	+	+	+	+
Gallic acid	+	+	+	+
Epicatechin (−)	-	+	+	+
p-coumaric acid	+	+	+	+
Naringenin	+	+	+	+
Naringin	+	+	+	+
Rutin	+	+	+	+
Quercetin	+	+	+	-
Kaempferol	+	-	+	-
Quinic acid	+	+	+	+
Ellagic acid	+	+	+	+
Castalin	+	+	+	+
Orientin	+	+	+	+
Apigenin	+	-	+	+
Luteolin	+	+	+	-
Brevifolin	+	+	+	+
Ferulic acid	+	-	+	+
Ellagic acid-pentoside	+	+	-	-
X1	+	+	+	+
Ellagic acid rhamnosyl	+	+	+	+
Cinnamic acid derivative	+	+	-	-

- unidentified; + identified.