. 2016 Apr 5;11(4):e0153080. doi: 10.1371/journal.pone.0153080

Table 1. Total flavonoids, anthocyanins and rutin content in the fruits of Morus nigra L. (n = 3).

Flavonoids	RT^a (min)	Regression equation^b	R²	Content (mg/g)^c
Total flavonoids	-	y = 10.635x + 0.0014	0.9995	20.8703 ± 0.9091^d
Rutin	6.979	y = (6.065x + 2.3621)*10³	0.9999	0.4538 ± 0.0002^e
Cyanidin-3-O-glucoside	4.408	y = (12.499x + 1.2386)*10³	0.9999	8.2941 ± 0.0014^e
Cyanidin-3-O-rutinoside	5.345	y = (8.765x + 1.5500)*10³	0.9999	2.8896 ± 0.0009^e

^a RT, Retention time.

^b y, Peak area; x, Concentration injected (μg/mL).

^c mg/g, weight in the dry powder of Morus nigra L.

^d The content calculated as rutin equivalents and measured by spectrophotometer.

^e The content measured by UPLC-TUV.