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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-2022-4-76-81</article-id><article-id custom-type="elpub" pub-id-type="custom">atu-1244</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>Изучение рабочих параметров фермента протепсин и влияние его на микроструктуру говядины второго сорта</article-title><trans-title-group xml:lang="en"><trans-title>Study of the Working Parameters of the Enzyme Protepsin and Its Effect on The Microstructure of Second-Grade Beef</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2314-2995</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Есенгазиева</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Yessengaziyeva</surname><given-names>A. N.</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><email xlink:type="simple">aesengazy@bk.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/0000-0002-5251-8026</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каймбаева</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kaimbayeva</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>050021, Алматы, пр. Абая, 28</p></bio><bio xml:lang="en"><p>050021, 28 Abay Ave., Almaty</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4626-2471</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Узаков</surname><given-names>Я. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Uzakov</surname><given-names>Y. M.</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-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4298-0927</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернуха</surname><given-names>И. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernukha</surname><given-names>I. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>109316, г.Москва, ул. Талалихина, 26</p></bio><bio xml:lang="en"><p>109316, 26 Talalikhin Str</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0558-9531</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузембаева</surname><given-names>Г. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzembaeva</surname><given-names>G. 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-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">АО «Алматинский технологический университет»<country>Казахстан</country></aff><aff xml:lang="en">JSC "Almaty Technological University"<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">«Казахский национальный аграрный исследовательский университет»<country>Казахстан</country></aff><aff xml:lang="en">«Kazakh National Agrarian Research University»<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">ФГБНУ «ФНЦ пищевых систем им. В.М. Горбатова» РАН<country>Россия</country></aff><aff xml:lang="en">«The Gorbatov's All Russian Meat Research Institute»<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>23</day><month>12</month><year>2022</year></pub-date><volume>0</volume><issue>4</issue><fpage>76</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Есенгазиева А.Н., Каймбаева Л.А., Узаков Я.М., Чернуха И.М., Кузембаева Г.К., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Есенгазиева А.Н., Каймбаева Л.А., Узаков Я.М., Чернуха И.М., Кузембаева Г.К.</copyright-holder><copyright-holder xml:lang="en">Yessengaziyeva A.N., Kaimbayeva L.A., Uzakov Y.M., Chernukha I.M., Kuzembaeva G.K.</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/1244">https://atu.ejournal.kz/jour/article/view/1244</self-uri><abstract><p>«Протепсин» – энзимный препарат животной природы, содержащий комплекс кислых протеиназ, предназначен для применения в мясной промышленности для обработки мясного сырья. Ферментный состав препарата сбалансирован по степени воздействия на различные белки мяса и мясных систем, применяющихся в технологии получения мясных продуктов. «Протепсин» работает в мясной системе аналогично внутриклеточным ферментам (катепсинам). Он является их синергистом и обладает дополнительными качествами, которые позволяют ему воздействовать в более широком диапазоне технологических параметров, а также влиять на те белковые системы, на которые внутриклеточные ферменты не действуют или оказывают действие в незначительной степени. Практическая значимость работы заключается в том, что полукопченые колбасные изделия пользуются особым спросом у населения. Снижение себестоимости при сохранении их качества в конкурентной среде является требованием времени. Поэтому применение фермента является одним из перспективных направлений в области мясопереработки. Цель работы - изучить рабочие параметры фермента протепсина и его влияние на микроструктуру говядины второго сорта. Гистологические изменения характеризуют положительное влияние фермента на развитие показателей качества мяса. В связи с этим обработка мясного сырья «Протепсином» приводит к значительному сокращению продолжительности созревания мяса, что позволяет добиться необходимых изменений в более короткие сроки по сравнению с естественным путем автолиза.</p></abstract><trans-abstract xml:lang="en"><p>"Protepsin" is an enzyme preparation of animal nature containing a complex of acid proteinases, intended for use in the meat industry for processing meat raw materials. The enzyme composition of the preparation is balanced according to the degree of exposure to various proteins of meat and meat systems used in the technology of obtaining meat products. "Protepsin" works in the meat system similarly to intracellular enzymes (cathepsins). It is their synergist and has additional qualities that allow it to act in a wider range of technological parameters, as well as to influence those protein systems on which intracellular enzymes do not act or have an effect to an insignificant extent [<xref ref-type="bibr" rid="cit1">1</xref>]. The practical significance of the work lies in the fact that semismoked sausage products are in particular demand among the population. Cost reduction while maintaining their quality in a competitive environment is a time requirement. Therefore, the use of the enzyme is one of the promising directions in the field of meat processing [<xref ref-type="bibr" rid="cit1">1</xref>]. The aim of the work is to study the working parameters of the enzyme "Protepsin" and its effect on the microstructure of second-grade beef. Histological changes characterize the positive effect of the enzyme on the development of meat quality indicators. In this regard, the processing of meat raw materials with "Protepsin" leads to a significant reduction in the duration of maturation of meat, which makes it possible to achieve the necessary changes in a shorter time compared with the natural way of autolysis.</p></trans-abstract><kwd-group xml:lang="en"><kwd>"Protepsin"</kwd><kwd>proteolytic enzyme</kwd><kwd>drug activity</kwd><kwd>temperature effect</kwd><kwd>microstructure</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">Антипова Л.В., Горбунков М.В. Протепсин - новый ферментный препарат отечественного производства для обработки мясного и молочного сырья // В сборнике: «Перспективные ферментные препараты и биотехнологические процессы в технологиях продуктов питания и кормов». ВНИИПБТ; Под редакцией В.А. Полякова, Л.В. 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