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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)-46</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz44-2166</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>СТРУКТУРНО-ФУНКЦИОНАЛЬНЫЕ СВОЙСТВА СОЕВЫХ И ГОРОХОВЫХ БЕЛКОВЫХ ИЗОЛЯТОВ</article-title><trans-title-group xml:lang="en"><trans-title>STRUCTURAL AND FUNCTIONAL PROPERTIES OF SOY AND PEA PROTEIN ISOLATES</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5684-0621</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мурат</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Murat</surname><given-names>L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Линара Азаматқызы Мурат – докторант кафедры «Технологии пищевых и перерабатывающих производств»</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62 </p></bio><bio xml:lang="en"><p>Linara Murat – Doctoral student at the Department of «Food and Processing Production Technologies»</p><p>010000, Republic of Kazakhstan, Astana, Zhenis Avenue, 62</p></bio><email xlink:type="simple">linaraazamatkyzy@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/0009-0008-8866-582X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Қиықбай</surname><given-names>Ә. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Kiyikbay</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Әмірсана Бекмұхаметұлы Қиықбай – старший научный сотрудник</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62</p><p> </p></bio><bio xml:lang="en"><p>Amirsana Kiyikbay –Senior researcher </p><p>010000, Republic of Kazakhstan, Astana, Zhenis Avenue, 62</p></bio><email xlink:type="simple">Sanabayq@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8178-3080</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Айтмухамбетов</surname><given-names>Д. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Aitmuhambetov</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Даулет Какижанович Айтмухамбетов – кандидат сельскохозяйственных наук</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62</p></bio><bio xml:lang="en"><p>Daulet Aitmuhambetov – Candidate of Agricultural Sciences</p><p>010000, Republic of Kazakhstan, Astana, Zhenis Avenue, 62</p></bio><email xlink:type="simple">daulet-kerei@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/0000-0002-6043-4658</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, и.о. ассоциированного профессора кафедры «Технологии пищевых и перерабатывающих производств»</p><p>010000, Республика Казахстан, г. Астана, проспект Женис, 62</p></bio><bio xml:lang="en"><p>Gulnazym Ospankulova – Candidate of Biological Sciences, Acting Associate Professor at the Department of «Food and Processing Production Technologies»</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">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><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>386</fpage><lpage>395</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мурат Л.А., Қиықбай Ә.Б., Айтмухамбетов Д.К., Оспанкулова Г.Х., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Мурат Л.А., Қиықбай Ә.Б., Айтмухамбетов Д.К., Оспанкулова Г.Х.</copyright-holder><copyright-holder xml:lang="en">Murat L., Kiyikbay A., Aitmuhambetov D., 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/2166">https://tech.vestnik.shakarim.kz/jour/article/view/2166</self-uri><abstract><p>В данной статье представлены результаты сравнительного исследования соевого белкового изолята (SPI) и горохового белкового изолята (PPI) с точки зрения их структурно-функциональных характеристик. Обсуждаются различия в составе и структуре белковых фракций, коллоидно-физические свойства (ζ-потенциал, электрофоретическая подвижность, размер частиц, электропроводность), термическая устойчивость (данные ДСК) и белковый профиль (SDSPAGE). Показано, что SPI обладает большей термической стабильностью и способен формировать более плотные гелеобразные структуры, тогда как PPI характеризуется меньшим размером частиц и высокой дисперсностью, обеспечивая лучшие эмульгирующие свойства. Сделаны выводы о целесообразности дифференцированного применения SPI и PPI в пищевой промышленности и о возможности их комбинирования для достижения оптимальных функциональных характеристик продуктов.</p></abstract><trans-abstract xml:lang="en"><p>Structural and functional properties of soy and pea protein isolates have been comparatively studied. The composition and structure of protein fractions, colloidal-physical properties (ζ-potential, electrophoretic mobility, particle size, conductivity), thermal stability (DSC analysis), and protein profiles (SDS-PAGE) of SPI and PPI were examined. The results demonstrate that SPI exhibits higher thermal stability and can form denser gel-like structures, whereas PPI is characterized by smaller particle size and higher dispersion, leading to superior emulsifying properties. The findings suggest the need for differentiated application of SPI and PPI in the food industry and indicate that combining these isolates could achieve optimal functional performance in food products.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>соевый белковый изолят</kwd><kwd>гороховый белковый изолят</kwd><kwd>функциональные свойства</kwd><kwd>коллоидная стабильность</kwd><kwd>термостабильность</kwd><kwd>SDS-PAGE</kwd></kwd-group><kwd-group xml:lang="en"><kwd>soy protein isolate</kwd><kwd>pea protein isolate</kwd><kwd>functional properties</kwd><kwd>colloidal stability</kwd><kwd>thermal stability</kwd><kwd>SDS-PAGE</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">Effect of pH on physicochemical and functional properties of plant protein isolates / Q. 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