Rapid Screening and Preparative Isolation of Antioxidants from <i>Alpinia officinarum</i> Hance Using HSCCC Coupled with DPPH-HPLC Assay and Evaluation of Their Antioxidant Activities

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Samples</td><td class="align_center">DPPH (IC<sub>50</sub>, μM)</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Petroleum ether fraction</td><td class="align_center">&gt;100</td></tr><tr><td class="align_left">Ethyl acetate fraction</td><td class="align_center">32.9 ± 0.3</td></tr><tr><td class="align_left"><i>n</i>-BuOH fraction</td><td class="align_center">74.5 ± 0.6</td></tr><tr><td class="align_left">Galangin</td><td class="align_center">4.2 ± 0.03</td></tr><tr><td class="align_left">Kaempferide</td><td class="align_center">7.8 ± 0.04</td></tr><tr><td class="align_left">Rutin<sup>a</sup></td><td class="align_center">3.9 ± 0.03</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr><tr class="table-fn"><td><div><sup>a</sup>Used as control.<br/></div></td></tr></table>

<div>Antioxidant activities of fractionations of different polarities and target-separated antioxidants in DPPH radical assay.</div>

Journal of Analytical Methods in Chemistry

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Table 1

Table 1: Rapid Screening and Preparative Isolation of Antioxidants from <i>Alpinia officinarum</i> Hance Using HSCCC Coupled with DPPH-HPLC Assay and Evaluation of Their Antioxidant Activities 

Table 1 | Rapid Screening and Preparative Isolation of Antioxidants from Alpinia officinarum Hance Using HSCCC Coupled with DPPH-HPLC Assay and Evaluation of Their Antioxidant Activities 