<?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%">Abdullah Abdulhamid Altaweel</style></author><author><style face="normal" font="default" size="100%">Abdullah Jalal Alasoom</style></author><author><style face="normal" font="default" size="100%">Hussein Ali Burshed</style></author><author><style face="normal" font="default" size="100%">Marwan Mohamed Alshawush</style></author><author><style face="normal" font="default" size="100%">Hany Ezzat Khalil</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Insight into Screening of Secondary Metabolites, Phenolic and Flavonoid Contents and Antioxidant Activity of Raphanus sativus L. Cultivated in Eastern Province of Saudi Arabia</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%">DPPH</style></keyword><keyword><style  face="normal" font="default" size="100%">Folin-Ciocalteau</style></keyword><keyword><style  face="normal" font="default" size="100%">Raphanus sativus</style></keyword><keyword><style  face="normal" font="default" size="100%">total flavonoid.</style></keyword><keyword><style  face="normal" font="default" size="100%">total phenolic</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year><pub-dates><date><style  face="normal" font="default" size="100%">August 2022</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">14</style></volume><pages><style face="normal" font="default" size="100%">313-318</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;Medicinal plants and vegetables are promising source of antioxidant products. The purpose of this study is to evaluate the phytochemicals and antioxidant activity of leaves and roots of &lt;em&gt;Raphanus sativus &lt;/em&gt;of Saudi origin. Various phytochemicals were screened in n-hexane, chloroform, ethyl acetate and aqueous fractions of leaves and roots of &lt;em&gt;Raphanus sativus &lt;/em&gt;using standard protocols and IR screening method. Total phenolic (TPC) and flavonoid (TFC) contents were assessed by Folin-Ciocalteau and aluminium chloride methods respectively. The antioxidant activity was evaluated by DPPH antioxidant protocol, using trolox as standard. Results demonstrated that &lt;em&gt;Raphanus sativus&lt;/em&gt; chemically characterized by the availability of various constituents such as flavonoids, steroids, saponins, tannins and carbohydrates at different levels in fractions of leaves and roots of&lt;em&gt; Raphanus sativus&lt;/em&gt; and the absence of cardiac glycosides, anthraquinones and alkaloids which was further confirmed using FTIR analysis. TPC was ranged from (8.92±1.01) and (211.80±1.57) mg GAE/g extract and TFC was ranged from (0.036±0.03) and (11.57±0.60) mg QE/g extract for leaves and roots extracts respectively. Due to the high phenolic and flavonoid content in aqueous and ethyl acetate fractions of leaves and roots extracts , results demonstrated high antioxidant activity with IC&lt;sub&gt;50&lt;/sub&gt;: (56.3±1.3) and (69.7±1.8) for aqueous fractions and (47.2±1.5) and (58.7±0.7) for ethyl acetate fractions of leaves and roots extracts respectively Study revealed that ethyl acetate and aqueous fractions of leaves and roots of&lt;em&gt; Raphanus sativus &lt;/em&gt;could develop a potential natural antioxidant herbal remedy. The study recommends future investigation to isolate and identify the bioactive secondary metabolites in &lt;em&gt;Raphanus sativus.&lt;/em&gt;&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><accession-num><style face="normal" font="default" size="100%">09</style></accession-num><section><style face="normal" font="default" size="100%">313</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Abdullah Abdulhamid Altaweel*, Abdullah Jalal Alasoom, Hussein Ali Burshed, Marwan Mohamed Alshawush, Hany Ezzat Khalil*&lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, SAUDI ARABIA.&lt;/p&gt;
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