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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">pharmjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Разработка и регистрация лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Drug development &amp; registration</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-2066</issn><issn pub-type="epub">2658-5049</issn><publisher><publisher-name>LLC «CPHA»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33380/2305-2066-2026-15-2-2120</article-id><article-id custom-type="elpub" pub-id-type="custom">pharmjournal-2326</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>ПОИСК И РАЗРАБОТКА НОВЫХ ЛЕКАРСТВЕННЫХ СРЕДСТВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH AND DEVELOPMENT OF NEW DRUG PRODUCTS</subject></subj-group></article-categories><title-group><article-title>Количественное определение компонентов полифенольных композиций посредством измерения кинетики накопления радикал-катионов ABTS•+</article-title><trans-title-group xml:lang="en"><trans-title>Polyphenolic combinations quantification through ABTS•+ radical cations accumulation kinetics measurement</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5004-7649</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воронин</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Voronin</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, г. Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p>8/2, Trubetskaya str., Mosсow, 119991</p></bio><email xlink:type="simple">voronin_k_s@staff.sechenov.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/0000-0001-9822-3322</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ильясов</surname><given-names>И. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilyasov</surname><given-names>I. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, г. Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p>8/2, Trubetskaya str., Mosсow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-6866-218X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оличева</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Olicheva</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, г. Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p>8/2, Trubetskaya str., Mosсow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2945-9806</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жевлакова</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhevlakova</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, г. Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p>8/2, Trubetskaya str., Mosсow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2700-5664</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белобородов</surname><given-names>В. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Beloborodov</surname><given-names>V. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, г. Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p>8/2, Trubetskaya str., Mosсow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2244-445X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Селиванова</surname><given-names>И. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Selivanova</surname><given-names>I. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, г. Москва, ул. Трубецкая, д. 8, стр. 2</p></bio><bio xml:lang="en"><p>8/2, Trubetskaya str., Mosсow, 119991</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное автономное образовательное учреждение высшего образования «Первый Московский государственный медицинский университет имени И. М. Сеченова» Министерства здравоохранения Российской Федерации (Сеченовский Университет)<country>Россия</country></aff><aff xml:lang="en">I. M. Sechenov First MSMU of the Ministry of Health of the Russian Federation (Sechenov University)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>27</day><month>03</month><year>2026</year></pub-date><volume>0</volume><issue>0</issue><issue-title>Принято в печать</issue-title><elocation-id>2326</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Воронин К.С., Ильясов И.Р., Оличева В.В., Жевлакова А.К., Белобородов В.Л., Селиванова И.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Воронин К.С., Ильясов И.Р., Оличева В.В., Жевлакова А.К., Белобородов В.Л., Селиванова И.А.</copyright-holder><copyright-holder xml:lang="en">Voronin K.S., Ilyasov I.R., Olicheva V.V., Zhevlakova A.K., Beloborodov V.L., Selivanova I.A.</copyright-holder><license 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.pharmjournal.ru/jour/article/view/2326">https://www.pharmjournal.ru/jour/article/view/2326</self-uri><abstract><sec><title>Введение</title><p>Введение. Для количественной оценки полифенольных соединений и их смесей широко используют спектрофотометрические методы исследования, в том числе Фолина – Чокалтеу, спектрофотометрию с хлоридом алюминия и другие. Они позволяют с высокой воспроизводимостью определять суммарное содержание полифенолов в различных образцах в пересчете на конкретный полифенол, но не количество отдельных компонентов. Спектрофотометрию в УФ и видимой области также применяют для исследования антирадикальной емкости полифенольных соединений, которая в том числе зависит от их количественного содержания. Соответственно, методы оценки антирадикальной активности теоретически могут быть использованы для количественного определения полифенолов.</p></sec><sec><title>Цель</title><p>Цель. Разработать методику количественного определения отдельных компонентов полифенольных композиций посредством измерения кинетики накопления радикал-катионов ABTS•+.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследовали бинарные композиции флавоноида дигидрокверцетина и лигнана секоизоларицирезинола, а также дигидрокверцетина и альфа-токоферола. Спектрофотометрически наблюдали кинетику накопления радикал-катионов 2,2'-азино-бис(3-этилбензотиазолин-6-сульфокислоты) диаммониевой соли (ABTS•+) в присутствии исследуемых образцов и стандартных смесей.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. Для исследуемых композиций выявлено образование двух периодов плато в их кинетических кривых, продолжительность которых оказалась пропорциональна содержанию компонентов композиции, что дает возможность проводить их количественное определение при соотнесении периодов плато с конкретными компонентами. Разработанная методика позволяет определять количество полифенолов с относительной ошибкой (δ) не более 3,7 % и относительным стандартным отклонением (RSD) не более 2 %.</p></sec><sec><title>Заключение</title><p>Заключение. Была показана принципиальная возможность применения метода оценки антирадикальной емкости для количественного определения полифенольных соединений в сложных смесях. Разработана методика количественного определения отдельных компонентов в бинарных смесях, которая характеризуется высокой воспроизводимостью результатов и приемлемой точностью.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Polyphenols are widely distributed in plant world and recognized for their high antioxidant activity. Traditional methods of polyphenolic compounds quantification, such as Folin – Ciocalteu and aluminum chloride assays, measure total phenolic or flavonoid content but fail to identify individual compounds in complex mixtures. Combining the kinetic profiling of antioxidant activity manifestation for a combination of antioxidants has certain potential for the development of inexpensive and simple quantitate analysis approaches.</p></sec><sec><title>Aim</title><p>Aim. To develop an approach for the quantitative determination of individual polyphenols in binary combinations through the measurement of ABTS•+ radical cations accumulation kinetics based on a lag-time experimental strategy.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We have studied formulations of flavonoid dihydroquercetin (DHQ) and lignan secoisolariciresinol (SECO) and a combination of DHQ with essential antioxidant alpha-tocopherol (α-TOH). The antioxidants induced the inhibition of ABTS•+ radical cations accumulation initiated by potassium persulfate, which resulted in a lag-time formation and was monitored spectrophotometrically at 730–750 nm.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. Both combinations demonstrated two lag-time periods pattern typical for additive type interactions between its components. Lag-time period duration depends on concentration of the component. We matched every lag-time period with specific polyphenol which allowed us to determine the content of every component of studied combinations. Developed technique measured the content of polyphenols with value of relative standard deviation (RSD) being not higher than 2 % and value of relative measurement error (δ) not exceeding 3,7 %.</p></sec><sec><title>Conclusion</title><p>Conclusion. Our study confirmed that an antioxidant capacity measurement approach could be successfully applied for content determination of individual polyphenols in complex mixtures. Developed methodology demonstrated high reproducibility and acceptable accuracy levels for binary combinations constituents’ quantification.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>полифенолы</kwd><kwd>ABTS</kwd><kwd>количественное определение</kwd><kwd>антирадикальная активность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polyphenols</kwd><kwd>ABTS</kwd><kwd>quantification</kwd><kwd>antioxidant capacity</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Данное исследование было профинансировано Российским научным фондом, грант № 25-25-00537, https://rscf.ru/en/project/25-25-00537/</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>This research was funded by Russian Science Foundation, grant № 25-25-00537, https://rscf.ru/en/project/25-25-00537/</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">Fernandes I., Pérez-Gregorio R., Soares S., Mateus N., De Freitas V. 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