Table 4.

Quantification of quercetin-3-O-glucuronide and ellagic acid in the evening primrose extract depending on extraction solvent.

Sample	Quercetin-3-O-glucuronide (mg/g)		Ellagic Acid (mg/g)
	Mean ± SD	RSD (%)	Mean ± SD	RSD (%)
0% EtOH	24.6 ± 0.0	0.1	2.4 ± 0.1	5.5
30% EtOH	25.3 ± 0.0	0.1	2.8 ± 0.1	3.7
50% EtOH	27.7 ± 0.5	1.9	3.3 ± 0.1	2.0
70% EtOH	16.5 ± 0.0	0.2	15.4 ± 0.1	0.3
90% EtOH	24.9 ± 0.1	0.4	1.9 ± 0.2	10.6

RSD, relative standard deviation.