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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">vestib</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия биологических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Biological Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1029-8940</issn><issn pub-type="epub">2524-230X</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1029-8940-2021-66-2-205-214</article-id><article-id custom-type="elpub" pub-id-type="custom">vestib-746</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Содержание фенольных соединений в листьях пиона древовидного (Paeonia suffruticosa Andr.) и их антиоксидантная активность</article-title><trans-title-group xml:lang="en"><trans-title>The content of phenolic compounds in the leaves of Paeonia suffruticosa Andr. and their antioxidant activity</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Деева</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Deeva</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Деева Алла Михайловна, канд. биол. наук, ст. науч. сотрудник</p><p>ул. Сурганова, 2в, 220012, г. Минск</p></bio><bio xml:lang="en"><p>Alla M. Deeva, Ph. D. (Biol.), Senior Researcher</p><p>2v, Surganov Str., 220012, Minsk</p></bio><email xlink:type="simple">alladzeeva@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Войцеховская</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Voizechovskaia</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Войцеховская Елена Анатольевна, науч. сотрудник</p><p>ул. Сурганова, 2в, 220012, г. Минск</p></bio><bio xml:lang="en"><p>Alena A. Voizechovskaia, Researcher</p><p>2v, Surganov Str., 220012, Minsk</p></bio><email xlink:type="simple">vazek@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Спиридович</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Spiridovich</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Спиридович Елена Владимировна, канд. биол. наук, заведующий лабораторией</p><p>ул. Сурганова, 2в, 220012, г. Минск</p></bio><bio xml:lang="en"><p>Alena V. Spiridovich, Ph. D. (Biol.), Head of the Laboratory</p><p>2v, Surganov Str., 220012, Minsk</p></bio><email xlink:type="simple">a.spirydovich@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Решетников</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Reshetnikov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Решетников Владимир Николаевич, академик, доктор биол. наук, профессор, заведующий отделом</p><p>ул. Сурганова, 2в, 220012, г. Минск</p></bio><bio xml:lang="en"><p>Vladimir N. Reshetnikov, Academician, D. Sc. (Biol.), Professor, Head of the Department</p><p>2v, Surganov Str., 220012, Minsk</p></bio><email xlink:type="simple">V.Reshetnikov@cbg.org.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Центральный ботанический сад НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Central Botanical Garden of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>05</month><year>2021</year></pub-date><volume>66</volume><issue>2</issue><fpage>205</fpage><lpage>214</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Деева А.М., Войцеховская Е.А., Спиридович Е.В., Решетников В.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Деева А.М., Войцеховская Е.А., Спиридович Е.В., Решетников В.Н.</copyright-holder><copyright-holder xml:lang="en">Deeva A.M., Voizechovskaia A.A., Spiridovich A.V., Reshetnikov V.V.</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://vestibio.belnauka.by/jour/article/view/746">https://vestibio.belnauka.by/jour/article/view/746</self-uri><abstract><p>Древовидный пион, который считается традиционным декоративным растением в Китае, Японии, Америке и странах Европы, широко используется и как лекарственное растение. Коллекция древовидных пионов в ГНУ «Центральный ботанический сад НАН Беларуси» представлена четырьмя таксонами. Целью нашей работы было оценить суммарное содержание фенольных соединений (ФС) и гидроксикоричных кислот (ГК) в листьях рода Paeonia, а также антиоксидантный статус данных образцов в зависимости от фазы онтогенеза. В результате проведенных исследований установлено высокое содержание ФС и ГК в листьях исследованных таксонов рода Paeonia, в том числе превышавшее порог в 65 мг/г сырого веса в листьях Paeonia suffruticosa во всех наблюдаемых фазах онтогенеза. В изученных сортах доля ГК в составе ФС составляла от 25 до 50 %. Максимальной антиоксидантной активностью обладали экстракты листьев рода Paeonia, собранных в период цветения. Таким образом, приведенные данные свидетельствуют о том, что надземную часть рода Paeonia можно рассматривать в качестве перспективного сырья для создания фитопрепаратов, обладающих антиоксидантным действием.</p></abstract><trans-abstract xml:lang="en"><p>The tree peony, which is considered a traditional ornamental plant in China, Japan, America and Europe, is also widely used as a medicinal plant. The collection of tree peonies in the State Scientific Institution “Central Botanical Garden of the National Academy of Sciences of Belarus” is represented by four taxa. The aim of our work was to assess the quantitative composition of the sum of phenolic compounds and hydroxylcinnamic acids in the leaves of the genus Paeonia, as well as to assess the antioxidant status of these samples depending on the phase of ontogenesis. As a result of the studies, a high content of phenolic compounds and hydroxycinnamic acids in the leaves of the studied taxa of the genus Paeonia was established, including the content exceeding the threshold of 65 mg/g in the leaves of Paeonia suffruticosa in all observed phases of ontogenesis. In the studied varieties, the proportion of hydroxycinnamic acids in the composition of phenolic compounds ranged from 25 to 50 %. Extracts of leaves of the Paeonia genus collected during the flowering period had the maximum antioxidant activity. Thus, the above data indicate that the aerial part of the Paeonia genus can be considered as a promising raw material for the creation of herbal remedies with antioxidant action.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Paeonia suffruticosa</kwd><kwd>Paeonia potanina</kwd><kwd>Paeonia ludlwii</kwd><kwd>фенольные соединения</kwd><kwd>гидроксикоричные кислоты</kwd><kwd>антиоксидантная активность</kwd><kwd>фазы онтогенеза</kwd><kwd>корреляция</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Paeonia suffruticosa</kwd><kwd>Paeonia potanina</kwd><kwd>Paeonia ludlwii</kwd><kwd>phenolic compounds</kwd><kwd>hydroxycinnamic acids</kwd><kwd>antioxidant activity</kwd><kwd>phases of ontogenesis</kwd><kwd>correlation</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">Flavonoid composition and antioxidant activity of tree peony (Paeonia section Moutan) yellow flowers / C. 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