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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">atu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Алматинского технологического университета</journal-title><trans-title-group xml:lang="en"><trans-title>The Journal of Almaty Technological University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304-568X</issn><issn pub-type="epub">2710-0839</issn><publisher><publisher-name>АО "АТУ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.48184/2304-568X-2026-3-129-141</article-id><article-id custom-type="elpub" pub-id-type="custom">atu-2951</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>ТЕХНОЛОГИЯ ПИЩЕВОЙ И ПЕРЕРАБАТЫВАЮЩЕЙ ПРОМЫШЛЕННОСТИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FOOD AND PROCESSING INDUSTRY TECHNOLOGY</subject></subj-group></article-categories><title-group><article-title>Исследование показателей качества функциональных напитков, обогащенных концентратами стевии</article-title><trans-title-group xml:lang="en"><trans-title>Study of quality indicators of functional beverages enriched with stevia concentrates</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1354-582X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Асрандина</surname><given-names>С. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Asrandina</surname><given-names>S. Sh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>050040, г. Алматы, пр. Аль-Фараби, 71</p></bio><bio xml:lang="en"><p>71 Al-Farabi Ave., Almaty 050040</p></bio><email xlink:type="simple">asaltanat@yandex.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/0000-0003-3639-1341</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кекибаева</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kekibaeva</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор PhD, сениор-лектор кафедры "Технология хлебопродуктов и перерабатывающих производств", образовательная траектория "Технология бродильных производств и виноделие"</p><p>050012, г. Алматы, ул. Толе би, 100</p></bio><bio xml:lang="en"><p>100 Tole bi St., Almaty 050012</p></bio><email xlink:type="simple">kekibaevaa@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4704-6909</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Атабаева</surname><given-names>С. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Atabayeva</surname><given-names>S. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>050040, г. Алматы, пр. Аль-Фараби, 71</p></bio><bio xml:lang="en"><p>71 Al-Farabi Ave., Almaty 050040</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/0000-0003-0238-2607</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кенжебаева</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kenzhebayeva</surname><given-names>S. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>050040, г. Алматы, пр. Аль-Фараби, 71</p></bio><bio xml:lang="en"><p>71 Al-Farabi Ave., Almaty 050040</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/0000-0002-3032-6373</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Доктырбай</surname><given-names>Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Doktyrbay</surname><given-names>G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>050040, г. Алматы, пр. Аль-Фараби, 71</p></bio><bio xml:lang="en"><p>71 Al-Farabi Ave., Almaty 050040</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>НИИ Устойчивости экологии и биоресурсов, Казахский национальный университет имени Аль-Фараби</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Research Institute of Ecological Sustainability and Bioresources Al-Farabi Kazakh National University</institution><country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Алматинский технологический университет</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Almaty Technological University</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>30</day><month>09</month><year>2026</year></pub-date><volume>153</volume><issue>3</issue><fpage>129</fpage><lpage>141</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Асрандина С.Ш., Кекибаева А.К., Атабаева С.Д., Кенжебаева С.С., Доктырбай Г., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Асрандина С.Ш., Кекибаева А.К., Атабаева С.Д., Кенжебаева С.С., Доктырбай Г.</copyright-holder><copyright-holder xml:lang="en">Asrandina S.S., Kekibaeva A.K., Atabayeva S.D., Kenzhebayeva S.S., Doktyrbay 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.vestnik-atu.kz/jour/article/view/2951">https://www.vestnik-atu.kz/jour/article/view/2951</self-uri><abstract><p>Одним из ключевых приоритетов современной нутрициологии и пищевой биотехнологии является снижение содержания сахара в рационе населения и повышение функциональной ценности продуктов питания. Целью представленного исследования является изучение возможности применения концентратов стевии в напитках для снижения содержания сахара в их составе и повышения пищевой ценности. В статье представлены результаты разработки функциональных напитков, обогащенных концентратами Stevia rebaudiana Bertoni и комплексная оценка их качества. В ходе исследования проведено сравнение различных методов экстракции биологически активных веществ из листьев стевии, доказана высокая эффективность ступенчатой экстракции с использованием 40% и 80% этанола. Приведена технологическая схема получения водно-спиртовых экстрактов и концентратов на их основе. Обоснована технологическая возможность снижения содержания сахара в напитках на 50% при сохранении высоких органолептических показателей. Установлено, что содержание аскорбиновой кислоты в опытных образцах в 2,5-3 раза выше, чем в контрольных, и составляет 14,1 мг/100 мл. Микробиологические и токсикологические исследования подтвердили полную безопасность продукта, а 6-месячный мониторинг доказал его стабильность при хранении. Разработанные напитки, обогащённые концентратами стевии, являются конкурентоспособными функциональными продуктами, соответствующим требованиям современной нутрициологии.</p></abstract><trans-abstract xml:lang="en"><p>One of the key priorities of modern nutrition science and food biotechnology is to reduce the sugar content in the population's diet and to increase the functional value of food products. The aim of the presented study is to explore the possibility of using stevia concentrates in beverages to reduce their sugar content and enhance their nutritional value. The article presents the results of developing functional beverages enriched with Stevia rebaudiana Bertoni concentrates and a comprehensive assessment of their quality. The study compared various methods for extracting biologically active substances from stevia leaves, demonstrating the high efficiency of sequential extraction using 40% and 80% ethanol. A technological scheme for obtaining water-alcohol extracts and concentrates based on them is provided. The technological possibility of reducing sugar content in beverages by 50% while maintaining high sensory properties was justified. Ascorbic acid content in the experimental samples was found to be 2.5-3 times higher than in the control samples, reaching 14.1 mg/100 mL. Microbiological and toxicological studies confirmed the complete safety of the product, and 6-month monitoring proved its stability during storage. The developed drinks, enriched with stevia concentrates, are competitive functional products that meet the requirements of modern nutrition science.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стевия</kwd><kwd>функциональные напитки</kwd><kwd>снижение сахара</kwd><kwd>экстракция</kwd><kwd>антиоксидантная активность</kwd><kwd>срок хранения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stevia</kwd><kwd>functional beverages</kwd><kwd>sugar reduction</kwd><kwd>extraction</kwd><kwd>antioxidant activity</kwd><kwd>shelf life</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">International Diabetes Federation. IDF Diabetes Atlas, 10th edn. Brussels, Belgium; 2021. Available from: https://www.diabetesatlas.org</mixed-citation><mixed-citation xml:lang="en">International Diabetes Federation. IDF Diabetes Atlas, 10th edn. Brussels, Belgium, 2021. 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