<?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><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%">Amanda Listiyani</style></author><author><style face="normal" font="default" size="100%">Berna Elya</style></author><author><style face="normal" font="default" size="100%">Nuraini Puspitasari</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antioxidant Activity and Lipoxygenase Enzyme Inhibitory Assay with Total Flavonoids Content from Garcinia hombroniana Pierre Stem Bark Extract</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%">Garcinia hombroniana Pierre</style></keyword><keyword><style  face="normal" font="default" size="100%">Inflammation</style></keyword><keyword><style  face="normal" font="default" size="100%">Lipoxygenase</style></keyword><keyword><style  face="normal" font="default" size="100%">Total flavonoids content</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/314</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">9</style></volume><pages><style face="normal" font="default" size="100%">276-279</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; &lt;em&gt;Garcinia&lt;/em&gt; has been known as a rich source of xanthones, flavonoids, and phenols. The aim of this research is to obtain data of antioxidant activity and to observe potential inhibition of lipoxygenase activity that most active from methanolic, ethyl acetate and n-hexane extracts with total flavonoids content from most active extracts from the bark of &lt;em&gt;Garcinia&lt;/em&gt; &lt;em&gt;hombroniana&lt;/em&gt; Pierre. &lt;strong&gt;Methods:&lt;/strong&gt; The antioxidant activity was measured using the ferric reducing antioxidant power (FRAP), the anti-inflammatory assay was measured using inhibition of lipoxygenase activity test, qualitative analysis of flavonoids using thin layer chromatography, and total flavonoids content was measured using AlCl&lt;sub&gt;3&lt;/sub&gt; colorimetric method. &lt;strong&gt;Results:&lt;/strong&gt; The results showed that the ethyl acetate extract from &lt;em&gt;G. hombroniana&lt;/em&gt; Pierre stem bark as the most active extract for antioxidant and lipoxygenase inhibition activity with EC&lt;sub&gt;50&lt;/sub&gt; and IC&lt;sub&gt;50&lt;/sub&gt; value consecutively 15.34 &amp;mu;g /ml; 0.26 &amp;mu;g /ml. Total flavonoids content of ethyl acetate is 7.430 mg QE/g extract. The results of this study showed bark extract &lt;em&gt;Garcinia&lt;/em&gt; &lt;em&gt;hombroniana&lt;/em&gt; Pierre has antioxidant activity and potent to inhibit lipoxygenase activity. &lt;strong&gt;Conclusion:&lt;/strong&gt; Based on the research for methanolic, ethyl acetate and n-hexane extract, it can be concluded that the ethyl acetate extract of &lt;em&gt;G. hombroniana&lt;/em&gt; Pierre as the most active extract for antioxidant and lipoxygenase inhibition 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%">276</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Amanda Listiyani, Berna Elya*, Nuraini Puspitasari &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>