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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-2026-1-226-232</article-id><article-id custom-type="elpub" pub-id-type="custom">atu-2475</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 ТЕКСТИЛЯ И ОДЕЖДЫ, ДИЗАЙН</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TEXTILE AND CLOTHING TECHNOLOGY, DESIGN</subject></subj-group></article-categories><title-group><article-title>Антиоксидантные свойства натурального экстракта при отделке кожи</article-title><trans-title-group xml:lang="en"><trans-title>Antioxidant properties of natural extract during the leather finishing</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Егемберди</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Yegemberdi</surname><given-names>R. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>160012 г. Шымкент, пр. Тауке хана, 5 </p></bio><bio xml:lang="en"><p> 160012, Shymkent, Tauke khan Ave, 5 </p></bio><email xlink:type="simple">era05.05@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мирзамуратова</surname><given-names>Р. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Mirzamuratova</surname><given-names>R. Sh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>160012 г. Шымкент, пр. Тауке хана, 5 </p></bio><bio xml:lang="en"><p> 160012, Shymkent, Tauke khan Ave, 5 </p></bio><email xlink:type="simple">era05.05@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абдикаева</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Abdikaeva</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>050012, г.Алматы, ул. Толе би, 100 </p></bio><bio xml:lang="en"><p> 050012, Almaty, Tole bi str., 100 </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Купенова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kupenova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>160012 г. Шымкент, пр. Тауке хана, 5 </p></bio><bio xml:lang="en"><p> 160012, Shymkent, Tauke khan Ave, 5 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Койланова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Koilanova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>160012 г. Шымкент, пр. Тауке хана, 5 </p></bio><bio xml:lang="en"><p> 160012, Shymkent, Tauke khan Ave, 5 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Беккулиева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bekkuliyeva</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>160012 г. Шымкент, пр. Тауке хана, 5 </p></bio><bio xml:lang="en"><p> 160012, Shymkent, Tauke khan Ave, 5 </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Южно-Казахстанский университет им. М.Ауэзова<country>Казахстан</country></aff><aff xml:lang="en">M. Auezov South Kazakhstan University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Алматинский технологический университет<country>Казахстан</country></aff><aff xml:lang="en">Almaty Technological University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>21</day><month>03</month><year>2026</year></pub-date><volume>151</volume><issue>1</issue><fpage>226</fpage><lpage>232</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Егемберди Р.М., Мирзамуратова Р.Ш., Абдикаева А.К., Купенова А.А., Койланова А.А., Беккулиева А.С., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Егемберди Р.М., Мирзамуратова Р.Ш., Абдикаева А.К., Купенова А.А., Койланова А.А., Беккулиева А.С.</copyright-holder><copyright-holder xml:lang="en">Yegemberdi R.M., Mirzamuratova R.S., Abdikaeva A.K., Kupenova A.A., Koilanova A.A., Bekkuliyeva A.S.</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://atu.ejournal.kz/jour/article/view/2475">https://atu.ejournal.kz/jour/article/view/2475</self-uri><abstract><p>При выполнении работ по выделке кожевенных материалов выполняется ряд сложных работ. Во время этих работ используются многие химические вещества и добавки, вредные для окружающей среды и опасные для здоровья человека. Основная цель, стоящая перед производством по выделке кожи, - заменить химические вещества наиболее натуральными экстрактами. Природные экстракты могут быть использованы в качестве дубильных работ, а также в процессе отделочных работ. Определение химического состава натурального экстракта, приготовленного из скорлупы грецкого ореха, проводилось на Масс-спектрометре LCMS-9030 и обнаружен ряд кислот с антиоксидантными свойствами и флавон с красящими свойствами. В кожевенном производстве широко используется дубление трехвалентным хромом. В конце концов, этот вид дубления является одним из наиболее подходящих методов для производства. Свободные радикалы трехвалентного хрома, присутствующие в коже, под воздействием температуры, фотостарения, влажности и внешней среды, превращаются в шестивалентный хром. Шестивалентный хром вызывает опасные заболевания для жизни человека, такие как канцерогенные, печеночная и почечная недостаточность, кожные заболевания. Антиоксиданты, содержащиеся в натуральных экстрактах, предотвращают образование шестивалентного хрома. Величина шестивалентного хрома в коже, отделанной натуральным экстрактом, изготовленным из скорлупы грецкого ореха с антиоксидантными свойствами, определялась на оборудовании Shimadzu UV-1601 PC UVVisible, в соответствии со стандартом EN ISO 17075. Величина шестивалентного хрома в коже, отделанной с натуральным экстрактом из скорлупы грецкого ореха значительно уменьшилась по сравнению с образцами отделанными с химическим пигментом, водой и без отделки.</p></abstract><trans-abstract xml:lang="en"><p>When carrying out work on the manufacture of leather materials, a number of complex processes are performed. During these operations, many chemicals and additives are used that are harmful to the environment and dangerous to human health. The main goal of the leather industry is to replace chemicals with the most natural extracts. Natural extracts can be used as tanning materials, as well as in the process of finishing processes. The chemical composition of the natural extract prepared from walnut shells was determined using an LCMS-9030 mass spectrometer and a number of acids with antioxidant properties and flavone with coloring properties were found. Trivalent chrome tanning is widely used in the leather industry. After all, this type of tanning is one of the most suitable methods for production. Trivalent chromium free radicals present in the leather, under the influence of temperature, photoaging, humidity and the external environment, turn into hexavalent chromium. Hexavalent chromium causes life-threatening diseases such as carcinogenic, liver and kidney failure, and skin diseases. The antioxidants contained in natural extracts prevent the formation of hexavalent chromium. The amount of hexavalent chromium in leather trimmed with a natural extract made from walnut shells with antioxidant properties was determined by Shimadzu UV- 1601 PC UV-Visible equipment, in accordance with EN ISO 17075 standard. The amount of hexavalent chromium in the leather finished with natural walnut shell extract was significantly reduced than in the samples finished with chemical pigment, water and without finishing.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кожа</kwd><kwd>величина хрома</kwd><kwd>скорлупа грецкого ореха</kwd><kwd>природный экстракт</kwd><kwd>антиоксидантные свойства</kwd></kwd-group><kwd-group xml:lang="en"><kwd>leather</kwd><kwd>chromium amount</kwd><kwd>walnut shell</kwd><kwd>natural extract</kwd><kwd>antioxidant properties</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">Yilmaz, S. Akça, Y. Saçlik, S. J. Int. Sci. 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