Table 1.
Extraction yield, total phenolic content and relative DPPH radical scavenging activity of ramie (Boehmeria nivea L.) leaves extracts prepared with different ethanol concentration.

Ethanol concentration (%)	Extraction yield (%)	Total phenolic content1)	Relative DPPH radical scavenging activity (%)
0	20.75±0.55a,2)	57.0±2.4a	26.2
30	17.92±0.65a	79.4±2.0b	62.3
50	17.68±1.24a	86.2±3.4b	77.5
70	15.46±1.15a	105.0±4.2b	100.0
100	6.24±0.23b	100.8±5.0b	80.9

μg chlorogenic acid equivalent (CAE)/mg solid in extract.
Values are means±SD (n=3). Different superscripts in the same column are significantly different (p < 0.05) by Duncan's multiple range test.