<?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%">Amalia Cipta Sari</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 Assay of Garcinia porrecta Laness. Stem Bark Extracts</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%">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 porrecta Laness</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/311</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">9</style></volume><pages><style face="normal" font="default" size="100%">257-266</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;Introduction:&lt;/strong&gt; The genus &lt;em&gt;Garcinia&lt;/em&gt; which is rich of secondary metabolites, mainly flavonoids, have known to have antioxidant and anti-inflammatory activity through the inhibition of lipoxygenase. There isn&amp;rsquo;t found literature indicating research on inhibition of lipoxygenase activity been done in this plant. The purpose of this study is to obtain the data and determine the potential antioxidant activity, and inhibition of lipoxygenase activity of &lt;em&gt;Garcinia porrecta&lt;/em&gt; Laness. stem bark extracts. &lt;strong&gt;Methods:&lt;/strong&gt; This research is included FRAP (Ferric Reducing Antioxidant Power) method antioxidant assay, &lt;em&gt;in vitro&lt;/em&gt; lipoxygenase inhibition assay, flavonoids qualitative analysis by thin layer chromatography, and total flavonoids assay in the most active extract. &lt;strong&gt;Results:&lt;/strong&gt; The results showed the methanol, ethyl acetate and n-hexane extracts of &lt;em&gt;G. porrecta&lt;/em&gt; Laness. stem bark using FRAP method, has antioxidant activity with EC&lt;sub&gt;50&lt;/sub&gt; values respectively 1.33; 4.97; and 19.96 &lt;em&gt;&amp;mu;&lt;/em&gt;g/mL and lipoxygenase inhibition activity with IC&lt;sub&gt;50&lt;/sub&gt; values 0.23; 0.52; and 4.87 &lt;em&gt;&amp;mu;&lt;/em&gt;g/mL. The most active extract in the both assay is methanol extract which has total flavonoids of 5.66 mg QE/g (quercetin equivalent). &lt;strong&gt;Conclusion:&lt;/strong&gt; The results from the study show extracts of the stem bark of &lt;em&gt;G. porrecta&lt;/em&gt; Laness. has antioxidant activity and potential for lipoxygenase inhibition.&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%">257</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Amalia Cipta Sari, Berna Elya*, Katrin &lt;/strong&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;Department of Pharmacognosy- Phytochemistry, Faculty of Pharmacy, Universitas Indonesia, Kampus Baru UI Depok, 16424, Depok, INDONESIA.&lt;/p&gt;</style></auth-address></record></records></xml>