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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">foodmeta</journal-id><journal-title-group><journal-title xml:lang="ru">FOOD METAENGINEERING</journal-title><trans-title-group xml:lang="en"><trans-title>FOOD METAENGINEERING</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2949-6497</issn><publisher><publisher-name>All-Russian Dairy Research Institute</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37442/fme.2024.2.49</article-id><article-id custom-type="elpub" pub-id-type="custom">foodmeta-49</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>Оригинальное эмпирическое исследование</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Original Empirical Research</subject></subj-group></article-categories><title-group><article-title>Влияние способа получения экстрактов цветков бархатцев распростертых (Tagetes patula L.) на содержание биологически активных веществ и антимикробную активность</article-title><trans-title-group xml:lang="en"><trans-title>The Effect of the Preparation Method on the Content of Biologically Active Substances and Antimicrobial Activity of Extracts of Marigold Flowers  (Tagetes patula 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/0000-0002-1489-0716</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кригер</surname><given-names>Ольга Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Kriger</surname><given-names>Olga Vladimirovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>профессор Высшей школы живых систем БФУ им. И. Канта</p><p>профессор факультета биотехнологий Университета ИТМО</p></bio><email xlink:type="simple">OKriger@kantiana.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/0009-0007-5873-8306</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шепель</surname><given-names>Екатерина Игоревна</given-names></name><name name-style="western" xml:lang="en"><surname>Shepel</surname><given-names>Ekaterina Igorevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистрант Высшей школы живых систем, Балтийский федеральный университет имени Иммануила Канта</p></bio><email xlink:type="simple">EIShepel@stud.kantiana.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Балтийский федеральный университет им. И. Канта, Университет ИТМО</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Immanuel Kant Baltic Federal University; ITMO University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Балтийский федеральный университет им. И. Канта</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Immanuel Kant Baltic Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2024</year></pub-date><volume>2</volume><issue>2</issue><fpage>22</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кригер О.В., Шепель Е.И., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Кригер О.В., Шепель Е.И.</copyright-holder><copyright-holder xml:lang="en">Kriger O.V., Shepel E.I.</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.fme-journal.org/jour/article/view/49">https://www.fme-journal.org/jour/article/view/49</self-uri><abstract><sec><title>Введение</title><p>Введение: Поиск новых источников биологически активных веществ с антимикробными свойствами представляет собой важное направление в современной биотехнологии и фармакологии. Перспективным источником таких веществ является Tagetes patula L. (бархатцы распростертые). Водные экстракты T. patula, обладая значительным потенциалом биологической активности, остаются недостаточно изученными по сравнению с экстрактами, полученными с использованием других экстрагентов и методов экстракции.</p></sec><sec><title>Цель</title><p>Цель: Исследование влияния методов экстракции на содержание биологически активных веществ и антимикробную активность водных экстрактов цветков Tagetes patula L. Определение зависимости между способом экстракции и содержанием биологически активных веществ, а также антибактериальными свойствами водных экстрактов для создания на их основе антимикробных препаратов. В рамках исследования выполнены задачи по определению суммарного содержания фенольных соединений и флавоноидов в водных экстрактах бархатцев распростертых, полученных различными методами экстракции, и тестированию экстрактов на антибактериальную активность по отношению к бактериям Staphylococcus aureus и Escherichia coli, выделенным из клинического материала.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы: Объектами исследования выступали водные экстракты цветков Tagetes patula L. с гидромодулем 1:10, полученные кипячением, настаиванием с перемешиванием, микроволновой и ультразвуковой экстракцией. Суммарное содержание фенольных соединений и флавоноидов определялось на планшетном ридере BMG Labtech. Антибактериальный эффект всех полученных экстрактов оценивался стандартным диско-диффузионным методом.</p></sec><sec><title>Результаты</title><p>Результаты: Метод экстракции значительно влияет на содержание биологически активных веществ и антибактериальную активность водных экстрактов бархатцев распростертых. Наибольшее содержание фенольных соединений наблюдалось в экстрактах, полученных микроволновой экстракцией (0,34 мг/см³), а максимальная концентрация флавоноидов была достигнута при кипячении в течение 300 секунд (0,98 мг/см³). Водные экстракты продемонстрировали антибактериальную активность против грамположительных и грамотрицательных бактерий S. aureus и E. coli, причем зона задержки роста культуры увеличивалась с продолжительностью экстракции.</p></sec><sec><title>Выводы</title><p>Выводы: Изучено влияние различных методов экстракции на содержание фенольных соединений и флавоноидов в водных экстрактах цветков бархатцев распростертых. Доказана антибактериальная активность экстрактов против грамположительных и грамотрицательных бактерий. Полученные данные подтверждают перспективность дальнейшего исследования водных экстрактов бархатцев распростертых, их состава и свойств для создания антимикробных препаратов, применяемых в медицине, ветеринарии и сельском хозяйстве.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction: The search for new sources of biologically active substances with antimicrobial properties represents a significant direction in modern biotechnology and pharmacology. A promising source of such substances is Tagetes patula L. (French marigold). Despite the high potential biological activity of aqueous extracts of T. patula, they remain insufficiently studied compared to extracts obtained using other solvents and extraction methods.</p></sec><sec><title>Purpose</title><p>Purpose: The aim of this study is to investigate the influence of extraction methods on the content of biologically active substances and the antimicrobial activity of aqueous extracts of Tagetes patula L. flowers. The study aims to determine the relationship between the extraction method and the content of biologically active substances, as well as the antibacterial properties of the aqueous extracts to create antimicrobial agents based on them. The research objectives included determining the total content of phenolic compounds and flavonoids in aqueous extracts of French marigolds obtained by various extraction methods, and testing the extracts for antibacterial activity against Staphylococcus aureus and Escherichia coli bacteria isolated from clinical material.</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods: The objects of the study were aqueous extracts of Tagetes patula L. flowers with a hydromodule of 1:10, obtained by boiling, infusing with stirring, microwave, and ultrasonic extraction. The total content of phenolic compounds and flavonoids was determined using a BMG Labtech plate reader. The antibacterial effect of all obtained plant extracts was assessed using the standard disk diffusion method.</p></sec><sec><title>Results</title><p>Results: The extraction method significantly influences the content of biologically active substances and the antibacterial activity of aqueous extracts of French marigolds. The highest phenolic compound content was observed in extracts obtained by microwave extraction (0.34 mg/cm³), while the maximum flavonoid concentration was achieved by boiling for 300 seconds (0.98 mg/cm³). The aqueous extracts demonstrated antibacterial activity against both gram-positive and gram-negative bacteria S. aureus and E. coli, with an increasing trend in the inhibition zone diameter proportional to the extraction duration.</p></sec><sec><title>Conclusion</title><p>Conclusion: The study examined the impact of various extraction methods on the total content of phenolic compounds and flavonoids in aqueous extracts of French marigold flowers. The antibacterial activity of the extracts against gram-positive and gram-negative bacteria was confirmed. The obtained data indicate the potential for further research into the composition and properties of aqueous extracts of French marigolds for the development of antimicrobial agents for use in medicine, veterinary science, and agriculture.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>бархатцы распростертые</kwd><kwd>водные экстракты</kwd><kwd>биологическая активность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>French marigold</kwd><kwd>aqueous extracts</kwd><kwd>biological activity</kwd><kwd>antimicrobial agents</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">Астафьева, О. В., Жаркова, З. В., &amp; Якимец М. В. (2020). Исследование химического состава и противомикробной активности экстрактов из соцветий Tagetes patula L. 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