<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Shinta Marlin</style></author><author><style face="normal" font="default" size="100%">Berna Elya</style></author><author><style face="normal" font="default" size="100%">Katrin</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antioxidant Activity and Lipoxygenase Enzyme Inhibition Assay with Total Flavonoid Content from Garcinia hombroniana Pierre Leaves</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antiinflammation</style></keyword><keyword><style  face="normal" font="default" size="100%">Antioxidant</style></keyword><keyword><style  face="normal" font="default" size="100%">Flavonoid</style></keyword><keyword><style  face="normal" font="default" size="100%">FRAP</style></keyword><keyword><style  face="normal" font="default" size="100%">Garcinia hombroniana Pierre</style></keyword><keyword><style  face="normal" font="default" size="100%">Lipoxygenase</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">February 2017</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://phcogj.com/fulltext/312</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">9</style></volume><pages><style face="normal" font="default" size="100%">267-272</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Objective:&lt;/strong&gt; &lt;em&gt;Garcinia hombroniana&lt;/em&gt; Pierre leaves extract have been known to contain flavonoid, but it has not been known yet for its antioxidant activity and inhibition of lipoxygenase activity. This study aims to determine antioxidant activity and inhibition of lipoxygenase activity of &lt;em&gt;G. hombroniana&lt;/em&gt; leaves extract. &lt;strong&gt;Method:&lt;/strong&gt; Antioxidant activity tested by using FRAP (Ferric Reducing Antioxidant Power) method and inhibition of lipoxygenase activity using baicalein as the positive control. Total flavonoid assay is also quantitatively done by AlCl&lt;sub&gt;3&lt;/sub&gt; colorimetric method on the most active extract using quercetin as the positive control. &lt;strong&gt;Results:&lt;/strong&gt; The test result showed that the n-hexane, ethyl acetate and methanol extract of &lt;em&gt;G. hombroniana&lt;/em&gt; Pierre leaves have antioxidant activity which showed by EC&lt;sub&gt;50&lt;/sub&gt; value consecutively are 36.260; 2.969; and 7.416 &amp;mu;g/mL, and also can inhibit lipoxygenase activity which showed by IC&lt;sub&gt;50&lt;/sub&gt; value consecutively are 2.052; 0.134; and 1.314 &amp;mu;g/mL. Ethyl acetate extract of &lt;em&gt;G. hombroniana&lt;/em&gt; Pierre leaves has the most active antioxidant activity and inhibition of lipoxygenase activity. Total flavonoid content of ethyl acetate extract of &lt;em&gt;G. hombroniana&lt;/em&gt; Pierre leaves is 42.004 mg QE/g sample. Conclusion: &lt;em&gt;Garcinia hombroniana&lt;/em&gt; Pierre leaves extract has antioxidant activity and can inhibit lipoxygenase activity.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">267</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Shinta Marlin, Berna Elya, Katrin &lt;/strong&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;Faculty of Pharmacy, Universitas Indonesia, Depok, Jawa Barat, 16424, INDONESIA.&lt;/p&gt;</style></auth-address></record></records></xml>