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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">vetpress</journal-id><journal-title-group><journal-title xml:lang="ru">Аграрная наука</journal-title><trans-title-group xml:lang="en"><trans-title>Agrarian science</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0869-8155</issn><issn pub-type="epub">2686-701X</issn><publisher><publisher-name>Редакция журнала "Аграрная наука"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32634/0869-8155-2025-395-06-156-161</article-id><article-id custom-type="elpub" pub-id-type="custom">vetpress-3706</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>АГРОИНЖЕНЕРИЯ И ПИЩЕВЫЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>AGROENGINEERING AND FOOD TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Идентификационные критерии напитков на основе чая</article-title><trans-title-group xml:lang="en"><trans-title>Identification criteria for tea-based beverages</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7112-1614</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ульянова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ulyanova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Екатерина Владимировна Ульянова, кандидат химических наук</p><p>ул. Россолимо, 7, Москва, 119021</p></bio><bio xml:lang="en"><p>Ekaterina Vladimirovna Ulyanova, Сandidate of Сhemical Sciences</p><p>7 Rossolimo Str., Moscow, 119021</p></bio><email xlink:type="simple">k.uljanova@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/0000-0002-9180-1043</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлова</surname><given-names>И. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailova</surname><given-names>I. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Юрьевна Михайлова, научный сотрудник</p><p>ул. Россолимо, 7, Москва, 119021</p></bio><bio xml:lang="en"><p>Irina Yurievna Mikhailova, Research Assistant</p><p>7 Rossolimo Str., Moscow, 119021</p></bio><email xlink:type="simple">irina-mikhailova54@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/0000-0003-0201-8725</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саббатовский</surname><given-names>К. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sabbatovsky</surname><given-names>K. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Георгиевич Саббатовский, кандидат химических наук</p><p>Ленинский пр-т, 31, корп. 4, Москва, 119071</p></bio><bio xml:lang="en"><p>Konstantin Georgievich Sabbatovsky, Сandidate of Chemical Sciences</p><p>31/4 Leninsky prospect, Moscow, 119021</p></bio><email xlink:type="simple">sabbat07@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Всероссийский научно-исследовательский институт пивоваренной, безалкогольной и винодельческой промышленности — филиал Федерального научного центра пищевых систем им. В.М. Горбатова Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>The All-Russian Scientific Research Institute of Brewing, Beverage and Wine Industry —Branch of V.M. Gorbatov Federal Scientific Center of Food Systems of the Russian Academyof Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт физической химии и электрохимии им. А.Н. Фрумкина Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>The Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>24</day><month>06</month><year>2025</year></pub-date><volume>0</volume><issue>6</issue><fpage>156</fpage><lpage>161</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ульянова Е.В., Михайлова И.Ю., Саббатовский К.Г., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ульянова Е.В., Михайлова И.Ю., Саббатовский К.Г.</copyright-holder><copyright-holder xml:lang="en">Ulyanova E.V., Mikhailova I.Y., Sabbatovsky K.G.</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.vetpress.ru/jour/article/view/3706">https://www.vetpress.ru/jour/article/view/3706</self-uri><abstract><p>Одним из приоритетных направлений научных исследований в области контроля качества пищевых продуктов является разработка надежных критериев, позволяющих идентифицировать их сырьевой состав.</p><p>Цели работы — апробация предложенного ранее комплексного подхода для идентификации чайного сырья в безалкогольных напитках, а также идентификация других видов растительного сырья (иван-чай и лимон). Скрининг испытуемых образцов сначала на содержание кофеина, а затем на содержание L-теанина позволяет выявить возможные фальсификаты, содержащие, например, вместо экстракта зеленого чая экстракт иван-чая, а также отобрать образцы для дальнейших молекулярно-генетических исследований, включающих пробоподготовку и экстракцию ДНК из объектов исследования, амплификацию, эндонуклеазное расщепление ампликонов, электрофорезную детекцию ПЦР-продуктов и ПДРФ-фрагментов в агарозном геле. При этом ПЦР-продукты, амплифицированные от образцов ДНК из экстракта чая, иван-чая и мякоти лимона, расщеплялись рестриктазами TaqI, BtrI и HinfI на характерные фрагменты. Показано, что использованный анализ ПЦР-ПДРФ с подобранными рестриктазами TaqI, BtrI и HinfI позволяет идентифицировать не только чайное сырье в составе безалкогольных напитков, но и иван-чай и дополнительные компоненты, например лимон, при его совместном присутствии с чаем. В целом предложенный комплексный подход, включающий хроматографические (определение кофеина и L-теанина) и молекулярно-генетические методы (определение маркерных фрагментов ДНК чая), позволяет повысить эффективность выявления фальсифицированных безалкогольных напитков, в которых чайное сырье заменено другим растительным сырьем.</p><p>Результаты исследования демонстрируют значительный потенциал применения передовых методов анализа данных для повышения эффективности и экологичности растениеводства.</p></abstract><trans-abstract xml:lang="en"><p>One of the priority areas of scientific research in the field of quality control of food products is to develop reliable criteria to identify their raw materials composition.</p><p>The  purpose  of  the  work is to test the previously proposed integrated approach for the identification of tea raw materials in soft drinks, as well as the identification of other types of plant raw materials (willow tea and lemon).</p><p>First screening the test samples for caffeine content and then for L-theanine content allows us to identify possible counterfeits containing, for example, fireweed extract instead of green tea extract, and to select samples for further molecular genetic studies including sampling and extraction of DNA from the objects of the study, amplification, endonucleic splitting of amplikons, electrophoresnic detection of PCR products and RFLP-fragments in agarose gel. At the same time, PCR products amplified from DNA samples from tea extract, fireweed and lemon pulp were split by TAQI, BTRI and HinfI restrictions into characteristic fragments. It is shown that the TAQI, BTRI and HinfI restricted PCR-RFLP used by the PCR-RFLP allows you to identify not only tea raw materials as part of non-alcoholic beverages, but also fireweed and additional components, for example, lemon, with its joint presence with tea. In general, the proposed integrated approach, including chromatographic (determination of caffeine and L-theanine) and molecular genetic methods (determining marker fragments of tea DNA), can increase the efficiency of detecting falsified non-alcoholic drinks in which tea raw materials are replaced by other plant raw materials.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сырье для безалкогольных напитков</kwd><kwd>чайные экстракты</kwd><kwd>чайные концентраты</kwd><kwd>чай зеленый</kwd><kwd>чай черный</kwd><kwd>иван-чай</kwd><kwd>идентификационные критерии безалкогольных напитков</kwd><kwd>биохимический состав безалкогольных напитков</kwd></kwd-group><kwd-group xml:lang="en"><kwd>raw materials for soft drinks</kwd><kwd>tea extracts</kwd><kwd>tea concentrates</kwd><kwd>green tea</kwd><kwd>black tea</kwd><kwd>fireweed</kwd><kwd>identification criteria for soft drinks</kwd><kwd>biochemical composition of soft drinks</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">Каспрова Ю.А. 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