<?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%">Asmaa S Abd Elkarim</style></author><author><style face="normal" font="default" size="100%">Sahar Abdelaziz</style></author><author><style face="normal" font="default" size="100%">Hany Gouda Attia</style></author><author><style face="normal" font="default" size="100%">Hanan AA Taie</style></author><author><style face="normal" font="default" size="100%">Rafik Monir</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Phytochemical and Antioxidant Evaluation of the Flavonoids and Tannins from Synadenium grantii Hook f, (Ephorbiaceae)</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%">Ephorbiaceae</style></keyword><keyword><style  face="normal" font="default" size="100%">Flavonoids</style></keyword><keyword><style  face="normal" font="default" size="100%">Synadenium grantii</style></keyword><keyword><style  face="normal" font="default" size="100%">Tannins</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">September 2020</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">1421-1428</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Background: &lt;/strong&gt;The methanol extract (MeE) of the aerial parts from &lt;em&gt;Synadenium grantii &lt;/em&gt;Hook f, (Ephorbiaceae) has more Polyphenols and used to treat several diseases. &lt;strong&gt;Objective: &lt;/strong&gt;The aim of this study is isolation, purification and identification of Polyphenols that showed good antioxidant activity. &lt;strong&gt;Materials and Methods:&lt;/strong&gt; In the present study, purification of the MeOH-H&lt;sub&gt;2&lt;/sub&gt;O extract (70:30) from the air-dried aerial parts of &lt;em&gt;S. grantii &lt;/em&gt;resulted by different chromatographic tools. The antioxidant activities were evaluated for the examined compounds by several methods using DPPH, Reducing power, ABTS and FRAP assays. &lt;strong&gt;Results:&lt;/strong&gt; A total of&lt;strong&gt; 14 &lt;/strong&gt;compounds were isolated from this plant species for the first time. The results obtained showed that all the examined compounds possess remarkable antioxidant activity through all assays especially compounds &lt;strong&gt;2&lt;/strong&gt; and &lt;strong&gt;4&lt;/strong&gt; where they showed the highest antioxidant activity among the other compounds and very close to the results of the standard compound BHA. &lt;strong&gt;Conclusion: &lt;/strong&gt;The compounds examined have exhibited antioxidant activity with promising value as natural source antioxidant drugs.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><work-type><style face="normal" font="default" size="100%">Research Article</style></work-type><section><style face="normal" font="default" size="100%">1421</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Asmaa S. Abd Elkarim&lt;sup&gt;1,&lt;/sup&gt;*, Sahar Abdelaziz&lt;sup&gt;2&lt;/sup&gt;, Hany Gouda Attia&lt;sup&gt;3,4&lt;/sup&gt;, Hanan A.A. Taie&lt;sup&gt;5&lt;/sup&gt;, Rafik Monir&lt;sup&gt;6 &lt;/sup&gt;&lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Chemistry of Tanning Materials and Leather Technology Department, National Research Centre, 33 El Bohouth st. (former EL Tahrir st.)-Dokki-Giza-P.O.12622, EGYPT.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Pharmacognosy department, Faculty of Pharmacy, Zagazig University, 44519 Zagazig, EGYPT.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;Department of pharmacognosy, faculty of pharmacy, Najran University, Najran 55461, SAUDI ARABIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;4&lt;/sup&gt;Department of pharmacognosy, faculty of pharmacy, Kafr EL- Shiekh university, EGYPT.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;5&lt;/sup&gt;Plant Biochemistry Department, Division of Agriculture and Biological Researches, National Research Centre, 33 El-Bohouth St. (Former El-Tahrir St.), Dokki 12622, Giza, EGYPT.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;6&lt;/sup&gt;Pharmacogonosy department, Faculty of Pharmaceutical sciences and drug manufacturing, Misr University for Science and Technology, 6th October City, EGYPT.&lt;/p&gt;
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