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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">kurskvest</journal-id><journal-title-group><journal-title xml:lang="ru">Человек и его здоровье</journal-title><trans-title-group xml:lang="en"><trans-title>Humans and their health</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-5746</issn><issn pub-type="epub">1998-5754</issn><publisher><publisher-name>Kursk State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21626/vestnik/2023-2/11</article-id><article-id custom-type="edn" pub-id-type="custom">ZIZCIE</article-id><article-id custom-type="elpub" pub-id-type="custom">kurskvest-1173</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="ru"><subject>ФАРМАЦЕВТИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHARMACEUTICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Изучение антиоксидантной активности травы люцерны серповидной (Medicago falcata L.)</article-title><trans-title-group xml:lang="en"><trans-title>Study of the antioxidant activity of the herb alfalfa sickle (Medicago falcata L.)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4550-781X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Швец</surname><given-names>Наталья Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Shvets</surname><given-names>Natalia N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры фармакогнозии и ботаники, КГМУ, г. Курск</p></bio><bio xml:lang="en"><p>Post-graduate student at the Department of Pharmacognosy and Botany, KSMU, Kursk, Russian Federation</p></bio><email xlink:type="simple">nataliashvetzneo@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4485-4609</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сухомлинов</surname><given-names>Юрий Анатольевич</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhomlinov</surname><given-names>Yuri A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. фарм. наук, доцент кафедры фармакогнозии и ботаники, КГМУ, г. Курск</p></bio><bio xml:lang="en"><p>Cand Sci. (Pharm.), Associate Professor at the Department of Pharmacognosy and Botany, KSMU, Kursk, Russian Federation</p></bio><email xlink:type="simple">sukhomlinovua@kursksmu.net</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0955-6892</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бубенчиков</surname><given-names>Роман Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Bubenchikov</surname><given-names>Roman A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р фарм. наук, зам. начальника отдела по стандартизации биологических лекарственных препаратов отдела стандартизации и внедрения управления научных разработок стандартизации и внедрения, Микроген, г. Москва</p></bio><bio xml:lang="en"><p>Dr. Sci. (Pharm.), Deputy Head of the Department for Standardization of Biological Medicines of the Department for Standardization and Implementation, Microgen, Moscow, Russian Federation</p></bio><email xlink:type="simple">robub@bk.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Курский государственный медицинский университет (КГМУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kursk State Medical University (KSMU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Научно-производственное объединение по медицинским и иммунобиологическим препаратам «Микроген» (Микроген)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific and Production Association for medical and immunobiological preparations "Microgen" (Microgen)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>29</day><month>06</month><year>2023</year></pub-date><volume>26</volume><issue>2</issue><fpage>86</fpage><lpage>92</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Швец Н.Н., Сухомлинов Ю.А., Бубенчиков Р.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Швец Н.Н., Сухомлинов Ю.А., Бубенчиков Р.А.</copyright-holder><copyright-holder xml:lang="en">Shvets N.N., Sukhomlinov Y.A., Bubenchikov R.A.</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.kursk-vestnik.ru/jour/article/view/1173">https://www.kursk-vestnik.ru/jour/article/view/1173</self-uri><abstract><p>Цель: изучение антирадикальной и антиокислительной активности водных, водно-спиртовых и спиртовых извлечений, полученных из травы люцерны серповидной. Материалы и методы. В качестве объекта исследования антирадикальной и антиокислительной активности водных, водно-спиртовых и спиртовых извлечений люцерны серповидной рассматривали траву люцерны серповидной в стадии цветения, которая была заготовлена в Российской Федерации на территории Курской области. Антиокислительную активность оценивали с помощью титриметрического метода, базирующегося на результате взаимодействия веществ восстанавливающего характера, которые имеются в извлечениях из травы люцерны серповидной, и калия перманганата, используемого в качестве титранта. Антирадикальную активность изучали спектрофотометрическим методом по способности извлечений инактивировать DPPH (2,2-дифенил- 1-пикрилгидразил). Определено содержание фенольных соединений (прямая спектрофотометрия) в пересчете на хлорогеновую кислоту и флавоноиды (дифференциальная спектрофотометрия) в пересчете на рутин. Результаты. Обработка результатов данных, полученных в ходе экспериментов по определению уровня антиокислительной и антирадикальной активности для различных концентраций водных, водно-спиртовых и спиртовых экстрагентов из травы люцерны серповидной, подтвердила наличие таковых эффектов для всех типов исследуемых извлечений. В условиях эксперимента с применением 30% этанола в качестве экстрагента проявлялась максимальная антиоксидантная активность, отмеченная на уровне 58,55%. Применение 96% этанола в качестве экстрагента показало аналогично максимальную антиоксидантную активность на уровне 56,63%, что несколько меньше, но значимо превышает другие показатели. Содержание флавоноидов было зафиксировано на максимальном уровне (0,51%) при использовании 30% этанола. В тех же условиях фенольные соединения регистрировались с показателем 0,88%. Полученные результаты визуализируют прямую коррелирующую связь между уровнем антиоксидантной активности исследуемого объекта травы Medicago falcata L. и уровнем содержания в нем фенольных соединений. Что же касается использования 96% этанола в качестве экстрагента, то в этом извлечении содержание гидроксикоричных кислот и флавоноидов было меньше (0,14% и 0,04% соответственно). Заключение. Результирующие данные серии экспериментов в отношении травы люцерны серповидной, собранной в фазу цветения, подтверждают перспективность лекарственного растительного сырья Medicago falcata L. как сырья, имеющего антиоксидантную активность, что позволяет рассмотреть ее в качестве базиса для продолжения фармакологических исследований.</p></abstract><trans-abstract xml:lang="en"><p>Objective: study of the antiradical and antioxidant activity of water, water-alcohol and alcohol extracts obtained from alfalfa sickle grass. Materials and methods. As an object of research of the antiradical and antioxidant activities of water, water-alcohol and alcohol extracts of alfalfa sickle, the grass of alfalfa sickle in the flowering stage, which was harvested in the Russian Federation in the Kursk region, was considered. The antioxidant activity was evaluated using a titrimetric method based on the result of the interaction of substances of a reducing nature that are present in extracts from alfalfa sickle grass and potassium permanganate used as a titrant. Antiradical activity was studied by spectrophotometric method based on the ability of extracts to inactivate DPPH (2,2-diphenyl-1-picrylhydrazyl). The content of phenolic compounds (direct spectrophotometry) in terms of chlorogenic acid and flavonoids (differential spectrophotometry) in terms of rutin was determined. Statistical analysis was used to process the data obtained as a result of experiments. Results. Processing of the results of data obtained during experiments to determine the level of antioxidant and antiradical activity for various concentrations of aqueous, water-alcohol and alcohol extractants from alfalfa sickle grass confirmed the presence of such effects for all types of extracts studied. Under experimental conditions with the use of 30% ethanol as an extractant, the maximum atioxidant activity was observed at the level of 58.55%. The use of 96% ethanol as an extractant showed similarly the maximum antioxidant activity, at the level of 56.63%, which is slightly less, but significantly exceeds other indicators. The content of flavonoids was fixed at the maximum level (0.51%) when using 30% ethanol. Under the same conditions, phenolic compounds were recorded with an index of 0.88%. The results obtained visualize a direct correlation between the level of antioxidant activity of the studied object of the herb Medicago falcata L. and the level of phenolic compounds in it. As for the use of 96% ethanol as an extractant, then in this extraction the content of hydroxycinnamic acids and flavonoids was less (0.14% and 0.04% respectively). Conclusion. The resulting data from a series of experiments on alfalfa sickle grass collected during the flowering phase confirm the prospects of medicinal plant raw materials Medicago falcata L. as a raw material having antioxidant activity, which makes it possible to consider it as a basis for continuing pharmacological research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Medicago falcata L.</kwd><kwd>Alfalfa sickle herb</kwd><kwd>люцерна серповидная</kwd><kwd>антиокислительная активность</kwd><kwd>антирадикальная активность</kwd><kwd>фенольные соединения</kwd><kwd>флавоноиды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Medicago falcata L.</kwd><kwd>Alfalfa sickle herb</kwd><kwd>antioxidant activity</kwd><kwd>antiradical activity</kwd><kwd>phenolic compounds</kwd><kwd>flavonoids</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kasote D.M., Katyare S.S., Hegde M.V., Bae H. 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