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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)-50</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-2146</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>ПРИМЕНЕНИЕ РАЗЛИЧНЫХ РЕЖИМОВ ОЗОНИРОВАНИЯ ДЛЯ ПОВЫШЕНИЯ ВЫХОДА ЛИМОННОЙ КИСЛОТЫ ПРИ ИСПОЛЬЗОВАНИИ ШТАММА ASPERGILLUS NIGER R5/4</article-title><trans-title-group xml:lang="en"><trans-title>APPLICATION OF OZONATION REGIMES TO INCREASE CITRIC ACID YIELD USING STRAIN ASPERGILLUS NIGER R5/4</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5472-036X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шайменова</surname><given-names>Б. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Shaimenova</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бахыт Сайлауовна Шайменова – докторант PhD</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62</p></bio><bio xml:lang="en"><p>Bakhyt Shaimenova – PhD student</p><p>010000, Republic of Kazakhstan, Astana, Zhenis Avenue, 62</p></bio><email xlink:type="simple">bshaymenova@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/0000-0002-9483-5732</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Садуахасова</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Saduakhasova</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сауле Абдуахаповна Садуахасова – кандидат биологических наук</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62</p></bio><bio xml:lang="en"><p>Saule Saduаkhasova – Candidate of Biological Sciences</p><p>010000, Republic of Kazakhstan, Astana, Zhenis Avenue, 62</p></bio><email xlink:type="simple">saule_aru@list.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/0000-0001-9534-2721</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каманова</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kamanova</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Светлана Георгиевна Каманова – докторант PhD</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62</p></bio><bio xml:lang="en"><p>Svetlana Kamanova – PhD student</p><p>010000, Republic of Kazakhstan, Astana, Zhenis Avenue, 62</p></bio><email xlink:type="simple">kamanovasveta@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/0000-0002-8624-0464</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Xin</surname><given-names>Lü</given-names></name><name name-style="western" xml:lang="en"><surname>Xin</surname><given-names>Lü</given-names></name></name-alternatives><bio xml:lang="ru"><p>Lü Xin – PhD, профессор факультета пищевой технологии и инженерии</p><p>712100, Китай № 3, Тайчэн-роуд, Янлин, Шэньси</p></bio><bio xml:lang="en"><p>Lü Xin – Professor, Ph.D,  College of Food Science and Engineering  </p><p>712100, China, № 3 Taicheng Road, Yangling, Shaanxi</p></bio><email xlink:type="simple">xinlu@nwsuaf.edu.cn</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6043-4658</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оспанкулова</surname><given-names>Г. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Ospankulova</surname><given-names>G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гульназым Хамитовна Оспанкулова – кандидат биологических наук</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62</p></bio><bio xml:lang="en"><p>Gulnazym Ospankulova – Candidate of Biological Sciences</p><p>010000, Republic of Kazakhstan, Astana, Zhenis Avenue, 62</p></bio><email xlink:type="simple">bulashevag@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">НАО «Казахский агротехнический исследовательский университет им. С. Сейфуллина»<country>Казахстан</country></aff><aff xml:lang="en">S. Seifullin Kazakh Agrotechnical Research University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Северо-западный университет сельского и лесного хозяйства<country>Китай</country></aff><aff xml:lang="en">Northwest A&amp;F University<country>China</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>424</fpage><lpage>432</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шайменова Б.С., Садуахасова С.А., Каманова С.Г., Xin L., Оспанкулова Г.Х., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Шайменова Б.С., Садуахасова С.А., Каманова С.Г., Xin L., Оспанкулова Г.Х.</copyright-holder><copyright-holder xml:lang="en">Shaimenova B., Saduakhasova S., Kamanova S., Xin L., Ospankulova 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://tech.vestnik.shakarim.kz/jour/article/view/2146">https://tech.vestnik.shakarim.kz/jour/article/view/2146</self-uri><abstract><p>В статье приведены результаты комплексных исследований, направленных на повышение эффективности выделения лимонной кислоты из ферментационного раствора, полученного с использованием штамма Aspergillus niger R5/4. Основное внимание уделено оценке влияния различных режимов озонирования, применяемого на стадии стерилизации оборудования, на микробиологическую чистоту и стабильность процесса ферментации. Была проведена оптимизация основных стадий технологического процесса: нейтрализации, осветления, выпаривания и кристаллизации. Установлено, что применение озонирования с концентрацией 200 ppm при скорости подачи 10 г/мин и остаточном содержании 1 ppm обеспечивает максимальный выход лимонной кислоты, в то время как при стерилизации оборудования без озонирования эффективность снижается. Выявлены оптимальные параметры последующих стадий обработки: нейтрализация карбонатом кальция (CaCO₃) в концентрации 75 г/л при температуре 50 °C и осветление при 20 °C с перемешиванием в течение 1,5 ч. Совокупность указанных факторов позволила достичь выхода лимонной кислоты на уровне 91,6%. Полученные результаты научно обосновывают эффективность сочетания озонирования и последующих стадий обработки, формируя практическую основу для совершенствования производства лимонной кислоты на промышленном уровне. Это, в свою очередь, открывает путь к разработке новых решений, направленных на повышение устойчивости и экономической эффективности биотехнологического производства.</p></abstract><trans-abstract xml:lang="en"><p>The article presents the results of comprehensive studies aimed at improving the efficiency of citric acid recovery from a fermentation broth obtained using the Aspergillus niger R5/4 strain. Particular attention was paid to evaluating the impact of different ozonation regimes, applied at the equipment sterilization stage, on the microbiological purity and stability of the fermentation process. Optimization was carried out for the key stages of the technological process, including neutralization, clarification, evaporation, and crystallization. It was established that ozonation at a concentration of 200 ppm, with a feed rate of 10 g/min and a residual content of 1 ppm, ensured the maximum yield of citric acid, whereas sterilization without ozonation resulted in decreased efficiency. The optimal parameters of subsequent processing stages were identified: neutralization with calcium carbonate (CaCO₃) at a concentration of 75 g/L and 50 °C, as well as clarification at 20 °C with 1.5 h of stirring. The combination of these factors enabled achieving a citric acid yield of 91.6%. The obtained results scientifically substantiate the effectiveness of combining ozonation with subsequent processing stages, providing a practical basis for improving citric acid production at the industrial level. This, in turn, paves the way for the development of new solutions aimed at enhancing the stability and economic efficiency of biotechnological production.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лимонная кислота</kwd><kwd>Aspergillus niger R5/4</kwd><kwd>озонирование</kwd><kwd>нейтрализация</kwd><kwd>фильтрация</kwd><kwd>кристаллизация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>citric acid</kwd><kwd>Aspergillus niger R5/4</kwd><kwd>ozonation</kwd><kwd>neutralization</kwd><kwd>filtration</kwd><kwd>crystallization</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">Озонирование производственных помещений, инкубационных и пищевых яиц / Е.В. Корса-Вавилова и др. // Птицеводство. – 2011. – № 12. – С. 39-41.</mixed-citation><mixed-citation xml:lang="en">Ozonirovanie proizvodstvennykh pomeshchenii, inkubatsionnykh i pishchevykh yaits / E.V. 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