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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2022-17-2-131-139</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-1821</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CHEMISTRY AND TECHNOLOGY OF MEDICINAL COMPOUNDS AND BIOLOGICALLY ACTIVE SUBSTANCES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И ТЕХНОЛОГИЯ ЛЕКАРСТВЕННЫХ ПРЕПАРАТОВ И БИОЛОГИЧЕСКИ АКТИВНЫХ СОЕДИНЕНИЙ</subject></subj-group></article-categories><title-group><article-title>Screening medicinal plant extracts for xanthine oxidase inhibitory activity</article-title><trans-title-group xml:lang="ru"><trans-title>Скрининг экстрактов лекарственных растений на ингибирующую активность ксантиноксидазы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7919-4028</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ха</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Ha</surname><given-names>A. C.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ань К. Ха, PhD, к.м.н., Химико-технологический факультет</p><p>268 Ли Тхыонг Кьет ул., Район 10, г. Хошимин; Линь Чунг Уорд, Район Тхёк, г. Хошимин</p></bio><bio xml:lang="en"><p>Anh C. Ha, PhD., Doctor of Medicinal Chemistry, Faculty of Chemical Engineering</p><p>268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City; Linh Trung Ward, Thu Duc District, Ho Chi Minh City</p></bio><email xlink:type="simple">hcanh@hcmut.edu.vn</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2820-3913</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нгуен</surname><given-names>Ч. Д.П.</given-names></name><name name-style="western" xml:lang="en"><surname>Nguyen</surname><given-names>Ch. D.P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чин Д.П. Нгуен, аспирант, Химико-технологический факультет</p><p>268 Ли Тхыонг Кьет ул., Район 10, г. Хошимин; Линь Чунг Уорд, Район Тхёк, г. Хошимин</p></bio><bio xml:lang="en"><p>Chinh D.P. Nguyen, BEng., Postgraduate Student, Faculty of Chemical Engineering</p><p>268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City; Linh Trung Ward, Thu Duc District, Ho Chi Minh City</p></bio><email xlink:type="simple">npdchinh.sdh19@hcmut.edu.vn</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7956-1067</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ле</surname><given-names>Т. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Le</surname><given-names>T. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тан М. Ле, аспирант, Химико-технологический факультет</p><p>268 Ли Тхыонг Кьет ул., Район 10, г. Хошимин; Линь Чунг Уорд, Район Тхёк, г. Хошимин</p></bio><bio xml:lang="en"><p>Tan M. Le, MSc., Master of Chemical Engineering, Faculty of Chemical Engineering</p><p>268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City; Linh Trung Ward, Thu Duc District, Ho Chi Minh City</p></bio><email xlink:type="simple">lmtan.sdh20@hcmut.edu.vn</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Технологический университет Хошимина; Вьетнамский национальный университет</institution><country>Вьетнам</country></aff><aff xml:lang="en"><institution>Ho Chi Minh City University of Technology (HCMUT); Vietnam National University Ho Chi Minh City (VNU-HCM)</institution><country>Viet Nam</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>31</day><month>05</month><year>2022</year></pub-date><volume>17</volume><issue>2</issue><fpage>131</fpage><lpage>139</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ha A.C., Nguyen C.D., Le T.M., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Ха А.К., Нгуен Ч.Д., Ле Т.М.</copyright-holder><copyright-holder xml:lang="en">Ha A.C., Nguyen C.D., Le T.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.finechem-mirea.ru/jour/article/view/1821">https://www.finechem-mirea.ru/jour/article/view/1821</self-uri><abstract><sec><title>Objectives</title><p>Objectives. The study aimed to test the ethanol extracts of ten medicinal plants for xanthine oxidase inhibitory activity.</p></sec><sec><title>Methods</title><p>Methods. The degree of xanthine oxidase inhibitory activity was determined by measuring the absorbance spectrophotometrically at 290 nm, which is associated with uric acid formation. The selected medicinal plants included Piper lolot C.DC. (Piperaceae), Pandanus amaryllifolius R.(Pandanaceae), Brassica juncea L. (Brassicaceae), Piper betle L. (Piperaceae), Perilla frutescens L. (Lamiaceae), Anacardium occidentale L. (Anacardiaceae), Polygonum barbatum L. (Polygonaceae), Artocarpus Altilis P. (Moraceae), Vitex negundo L. (Verbenaceae), Annona squamosal L. (Annonaceae), which were selected based on folk medicine.</p></sec><sec><title>Results</title><p>Results. The results showed that the Piper betle L. has a strong ability to inhibit xanthine oxidase with an IC50 value of up to 1.18 μg/mL, compared to allopurinol 1.57 μg/mL. Different parts of Piper betle L. were compared and the leaves of Piper betle L. showed the best value for xanthine oxidase inhibitory and antioxidant activity.</p></sec><sec><title>Conclusions</title><p>Conclusions. Piper betle L. showed the best potential for inhibition of xanthine oxidase among ten medicinal plants. Piper betle L. leaf extract showed strong xanthine oxidase inhibitory and antioxidant activity, compared to the whole plant, and the stem extract, which promises to be applied in the treatment of gout.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цели</title><p>Цели. Исследование было направлено на проверку этанольных экстрактов десяти лекарственных растений на ингибиторную активность ксантиноксид азы.</p></sec><sec><title>Методы</title><p>Методы. Степень ингибирующей активности ксантиноксидазы определяли путем спектрофотометрического измерения поглощения при 290 нм, вызываемого образованием мочевой кислоты. В состав отобранных лекарственных растений вошли перец-лолот (Piperaceae), пандан (Pandanaceae), горчица сарептская (Brassicaceae), бетель (Piperaceae), перилла обыкновенная (Lamiaceae), кешью (Anacardiaceae), конопля (Polygonaceae), хлебное дерево (Moraceae), прутняк китайский (Verbenaceae), сахарное яблоко (Annonaceae), отобранные на основе их применения в народ ной медицине.</p></sec><sec><title>Результаты</title><p>Результаты. Результаты показали, что бетель обладает сильной способностью ингибировать ксантиноксидазу со значением IC50 до 1.18 мкг/мл по сравнению с аллопуринолом 1.57 мкг/мл. Были проведены сравнения различных частей бетеля, и листья бетеля показали наилучшие показатели ингибирования ксантиноксидазы и антиоксидантной активности.</p></sec><sec><title>Выводы</title><p>Выводы. Бетель показал лучший потенциал ингибирования ксантиноксидазы среди десяти лекарственных растений. Экстракт листьев бетеля показал сильное подавление ксантиноксидазы и антиоксидантную активность по сравнению с целым растением и экстрактом стебля, которые применяются при лечении подагры.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>антиподагра</kwd><kwd>ингибиторы ксантиноксидазы</kwd><kwd>лекарственные растения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>anti-gout</kwd><kwd>xanthine oxidase inhibitors</kwd><kwd>medicinal plants</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Мы выражаем признательность за время и средства, предоставленные Технологическим университетом Хошимина (HCMUT) и Вьетнамским национальным университетом Хошимина (VNU-HCM) для этого исследования.</funding-statement><funding-statement xml:lang="en">We acknowledge the support of time and facilities from Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, for this study.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ragab G., Elshahaly M., Bardin T. 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