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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">kaz44</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Университета Шакарима. Серия технические науки</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Shakarim University. Technical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2788-7995</issn><issn pub-type="epub">3006-0524</issn><publisher><publisher-name>«Шәкәрім университеті» КеАҚ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.53360/2788-7995-2025-4(20)-53</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-2255</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>ПИЩЕВАЯ ИНЖЕНЕРИЯ И БИОТЕХНОЛОГИЯ (ОРИГИНАЛЬНАЯ СТАТЬЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FOOD ENGINEERING AND BIOTECHNOLOGY (ORIGINAL ARTICLE)</subject></subj-group></article-categories><title-group><article-title>СРАВНИТЕЛЬНЫЙ АНАЛИЗ МЕТОДОВ ВЫДЕЛЕНИЯ ПОСТБИОТИКОВ И ОПРЕДЕЛЕНИЕ ВЫХОДА ПРЕПАРАТОВ ИЗ ШТАММОВ МИКРООРГАНИЗМОВ</article-title><trans-title-group xml:lang="en"><trans-title>COMPARATIVE ANALYSIS OF METHODS OF ISOLATION OF POSTBIOTICS AND DETERMINATION OF THE YIELD OF DRUGS FROM MICROORGANISMS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9707-0539</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жарыкбасов</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zharykbasov</surname><given-names>Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ерлан Сауыкович Жарыкбасов – PhD, ассоциированный профессор, декан Исследовательской школы физических и химических наук</p><p>071412, Республика Казахстан, область Абай, г. Семей, ул. Глинки, 20 А</p></bio><bio xml:lang="en"><p>Yerlan Zharykbasov – PhD, Associate Professor, Dean Research School of Physical and Chemical Sciences</p><p>071412, Republic of Kazakhstan, Abai region, Semey city, Glinki street 20A</p></bio><email xlink:type="simple">erlan-0975@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/0000-0002-3501-3042</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Какимова</surname><given-names>Ж. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Kakimova</surname><given-names>Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жайнагуль Хасеновна Какимова – кандидат технических наук, ассоциированный профессор кафедры «Биоинженерлік жүйелер»</p><p>071412, Республика Казахстан, область Абай, г. Семей, ул. Глинки, 20 А</p></bio><bio xml:lang="en"><p>Zhaynagul Kakimova – Candidate of Technical Sciences; Associate Professor of «Department of Bioengineering Systems»</p><p>071412, Republic of Kazakhstan, Abai region, Semey city, Glinki street 20A</p></bio><email xlink:type="simple">zhaynagul.kakimova@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/0000-0002-2027-3183</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жарыкбасова</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zharykbasova</surname><given-names>K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Клара Сауыковна Жарыкбасова – доктор технических наук, ассоциированный профессор кафедры «Прикладная биология»</p><p>071400, Республика Казахстан, область Абай, г. Семей, ул. Мәңгілік Ел, 11</p></bio><bio xml:lang="en"><p>Klara Zharykbasov – Doctor of Technical Science, Associate Professor of «Applied biology»</p><p>071400, Republic of Kazakhstan, Abai region, Semey city, Mangilik street 11</p></bio><email xlink:type="simple">Klara_zharykbasova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9607-1684</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Какимов</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kakimov</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айтбек Калиевич Какимов – доктор технических наук, профессор кафедры «Биоинженерлік жүйелер»</p><p>071412, Республика Казахстан, область Абай, г. Семей, ул. Глинки, 20 А</p></bio><bio xml:lang="en"><p>Aitbek Kakimov – Doctor of Technical Science, Professor of «Department of Bioengineering Systems»</p><p>071412, Republic of Kazakhstan, Abai region, Semey city, Glinki street 20A</p></bio><email xlink:type="simple">bibi.53@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/0000-0003-0097-8466</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бепеева</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Bepeyeva</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айгерим Ергалиевна Бепеева – PhD; старший преподаватель кафедры «Биоинженерлік жүйелер»</p><p>071412, Республика Казахстан, область Абай, г. Семей, ул. Глинки, 20 А</p></bio><bio xml:lang="en"><p>Aigerim Bepeyeva – PhD; senior lecture of «Department of Bioengineering Systems»</p><p>071412, Republic of Kazakhstan, Abai region, Semey city, Glinki street 20A</p></bio><email xlink:type="simple">bepeyeva1987@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Шәкәрім Университет<country>Казахстан</country></aff><aff xml:lang="en">Shakarim University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Alikhan Bokeikhan University<country>Казахстан</country></aff><aff xml:lang="en">Alikhan Bokeikhan University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>25</day><month>01</month><year>2026</year></pub-date><volume>1</volume><issue>4(20)</issue><fpage>448</fpage><lpage>455</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Жарыкбасов Е.С., Какимова Ж.Х., Жарыкбасова К.С., Какимов А.К., Бепеева А.Е., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Жарыкбасов Е.С., Какимова Ж.Х., Жарыкбасова К.С., Какимов А.К., Бепеева А.Е.</copyright-holder><copyright-holder xml:lang="en">Zharykbasov Y., Kakimova Z., Zharykbasova K., Kakimov A., Bepeyeva A.</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://tech.vestnik.shakarim.kz/jour/article/view/2255">https://tech.vestnik.shakarim.kz/jour/article/view/2255</self-uri><abstract><p>В статье представлены результаты исследования, направленные на сравнительный анализ методов выделения постбиотиков и определение выхода и антиоксидантной активности препаратов, полученных из штаммов Lacticaseibacillus sp., Leuconostoc sp. и Saccharomyces sp., выделенных из традиционных ферментированных продуктов (шубат, квашеная капуста и кумыс). На основании анализа литературных источников для экспериментальных исследований были выбраны три метода: термическая инактивация клеток, осаждение этанолом и ультрафильтрация, отличающиеся технологической простотой, экономичностью и способностью сохранять биологически активные компоненты. Выход постбиотиков определяли гравиметрическим методом, антиоксидантную активность – по DPPH и ABTS-тестам, микробиологическую безопасность – по отсутствию роста жизнеспособных клеток. Установлено, что термический метод обеспечивает наибольший выход сухого вещества (90-92 %), высокую антиоксидантную активность (86-89 %) и полную микробиологическую безопасность по сравнению с другими методами. Мягкий режим инактивации (70°C в течение 30 мин) позволил сохранить функциональные метаболиты без разрушения низкомолекулярных антиоксидантов и экзополисахаридов, участвующих в восстановительно-окислительных процессах. Наибольшие значения активности получены у штамма Leuconostoc sp., что связано с наличием экзополисахаридной матрицы, стабилизирующей активные соединения. Полученные результаты подтверждают целесообразность применения термической инактивации в качестве эффективного и доступного метода выделения постбиотиков для разработки функциональных молочных продуктов и расширения биотехнологических направлений пищевой промышленности.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of a study aimed at a comparative analysis of postbiotic isolation methods and determining the yield and antioxidant activity of preparations obtained from Lacticaseibacillus sp., Leuconostoc sp., and Saccharomyces sp. strains isolated from traditional fermented products (shubat, sauerkraut, and kumiss). Based on an analysis of literary sources, three methods were selected for experimental studies: thermal cell inactivation, ethanol precipitation, and ultrafiltration, characterized by technological simplicity, cost-effectiveness, and the ability to preserve biologically active components. The yield of postbiotics was determined gravimetrically, antioxidant activity by DPPH and ABTS tests, and microbiological safety by the absence of viable cell growth. It was found that the thermal method provides the highest dry matter yield (90-92%), high antioxidant activity (86-89%), and complete microbiological safety compared to other methods. A gentle inactivation regime (70°C for 30 min) preserved functional metabolites without destroying low-molecular-weight antioxidants and exopolysaccharides involved in redox processes. The highest activity values were obtained for the Leuconostoc sp. strain, which is due to the presence of an exopolysaccharide matrix stabilizing the active compounds. The obtained results confirm the feasibility of thermal inactivation as an effective and affordable method for isolating postbiotics for the development of functional dairy products and the expansion of biotechnological approaches in the food industry.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>постбиотики</kwd><kwd>штаммы микроорганизмов</kwd><kwd>молочные продукты</kwd><kwd>методы выделения постбиотиков</kwd></kwd-group><kwd-group xml:lang="en"><kwd>postbiotics</kwd><kwd>microbial strains</kwd><kwd>dairy products</kwd><kwd>methods for isolating postbiotics</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Материалы подготовлены в рамках научного проекта грантового финансирования ИРН AP26198315 «Научно-практические аспекты разработки технологии функциональных молочных продуктов на основе БАД нового поколения».</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">Бегунова А.В. 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