Figures & data
Table 1. The total phenolic content and radical scavenging activities of the ethanol crude extract and its four fractions from Alpinia oxyphylla fruits using DPPH• and TEAC assay.
Figure 1. DPPH radical scavenging activity of ethanol crude extract and its four fractions from Alpinia oxyphylla fruits. CE: ethanol crude extract; PF: petroleum ether fraction; EF: ethyl acetate fraction; BF: n-butanol fraction; WF: water fraction; and VC: ascorbic acid.
![Figure 1. DPPH radical scavenging activity of ethanol crude extract and its four fractions from Alpinia oxyphylla fruits. CE: ethanol crude extract; PF: petroleum ether fraction; EF: ethyl acetate fraction; BF: n-butanol fraction; WF: water fraction; and VC: ascorbic acid.](/cms/asset/278bd9e1-3cbb-4d22-9f21-bce15c028157/iphb_a_794844_f0001_b.jpg)
Figure 2. ABTS•+ scavenging activity of ethanol crude extract and its four fractions from Alpinia oxyphylla fruits. CE: ethanol crude extract; PF: petroleum ether fraction; EF: ethyl acetate fraction; BF: n-butanol fraction; WF: water fraction; and VC: ascorbic acid.
![Figure 2. ABTS•+ scavenging activity of ethanol crude extract and its four fractions from Alpinia oxyphylla fruits. CE: ethanol crude extract; PF: petroleum ether fraction; EF: ethyl acetate fraction; BF: n-butanol fraction; WF: water fraction; and VC: ascorbic acid.](/cms/asset/4742b3b3-1f42-40a1-9bb4-3446456053b0/iphb_a_794844_f0002_b.jpg)
Figure 3. Reducing power of ethanol crude extract and its four fractions from Alpinia oxyphylla fruits. CE: ethanol crude extract; PF: petroleum ether fraction; EF: ethyl acetate fraction; BF: n-butanol fraction; WF: water fraction; and VC: ascorbic acid.
![Figure 3. Reducing power of ethanol crude extract and its four fractions from Alpinia oxyphylla fruits. CE: ethanol crude extract; PF: petroleum ether fraction; EF: ethyl acetate fraction; BF: n-butanol fraction; WF: water fraction; and VC: ascorbic acid.](/cms/asset/f9d10d2c-d2d5-4fe3-a07a-8ce1edc597a2/iphb_a_794844_f0003_b.jpg)
Table 2. Correlation coefficients (R2) for relationship between assays.
Table 3. Cytotoxicity (IC50) of the ethanol crude extract and its four fractions from Alpinia oxyphylla fruits and 5-fluorouracil (5-FU) on six human cancer cell lines.