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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">meat</journal-id><journal-title-group><journal-title xml:lang="en">Theory and practice of meat processing</journal-title><trans-title-group xml:lang="ru"><trans-title>Теория и практика переработки мяса</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2414-438X</issn><issn pub-type="epub">2414-441X</issn><publisher><publisher-name>ФГБНУ «Федеральный научный центр пищевых систем им. В.М. Горбатова» РАН</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21323/2414-438X-2023-8-1-34-42</article-id><article-id custom-type="elpub" pub-id-type="custom">meat-247</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Hydrolysate of ovalbumin: production and evaluation of the functional properties of peptides</article-title><trans-title-group xml:lang="ru"><trans-title>Hydrolysate of ovalbumin: production and evaluation of the functional properties of peptides</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0574-1575</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Zhamsaranova</surname><given-names>S. D.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhamsaranova</surname><given-names>S. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Sesegma D. Zhamsaranova, Doctor of Biological Sciences, Professor, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><bio xml:lang="en"><p>Sesegma D. Zhamsaranova, Doctor of Biological Sciences, Professor, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><email xlink:type="simple">zhamsarans@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/0000-0001-5664-6028</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Lebedeva</surname><given-names>S. N.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Svetlana N. Lebedeva, Doctor of Biological Sciences, Professor, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40V</p></bio><bio xml:lang="en"><p>Svetlana N. Lebedeva, Doctor of Biological Sciences, Professor, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><email xlink:type="simple">lebedeva1959@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/0000-0002-1822-4980</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Bolkhonov</surname><given-names>B. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Bolkhonov</surname><given-names>B. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Bulat A.  Bolkhonov, Master student, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><bio xml:lang="en"><p>Bulat A.  Bolkhonov, Master student, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><email xlink:type="simple">hybushka4567@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/0000-0002-1499-5841</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Sokolov</surname><given-names>D. V.</given-names></name><name name-style="western" xml:lang="en"><surname>Sokolov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Dmitry V.  Sokolov, Master student, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><bio xml:lang="en"><p>Dmitry V.  Sokolov, Master student, Department of Biotechnology</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><email xlink:type="simple">dim-sokol1999@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/0000-0001-7380-5959</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Bazhenova</surname><given-names>B. A.</given-names></name><name name-style="western" xml:lang="en"><surname>Bazhenova</surname><given-names>B. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Bayana A. Bazhenova, Doctor of Technical Sciences, Professor, Vice Rector for Additional Education and International Cooperation</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><bio xml:lang="en"><p>Bayana A. Bazhenova, Doctor of Technical Sciences, Professor, Vice Rector for Additional Education and International Cooperation</p><p>670013, Ulan-Ude, Klyuchevskaya str., 40VTel.: +7–301–243–14–15</p></bio><email xlink:type="simple">bayanab@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>East Siberian State University of Technology and Management</institution><country>Россия</country></aff><aff xml:lang="en"><institution>East Siberian State University of Technology and Management</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>03</day><month>04</month><year>2023</year></pub-date><volume>8</volume><issue>1</issue><fpage>34</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Zhamsaranova S.D., Lebedeva S.N., Bolkhonov B.A., Sokolov D.V., Bazhenova B.A., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Zhamsaranova S.D., Lebedeva S.N., Bolkhonov B.A., Sokolov D.V., Bazhenova B.A.</copyright-holder><copyright-holder xml:lang="en">Zhamsaranova S.D., Lebedeva S.N., Bolkhonov B.A., Sokolov D.V., Bazhenova B.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://www.meatjournal.ru/jour/article/view/247">https://www.meatjournal.ru/jour/article/view/247</self-uri><abstract><p>Chicken eggs proteins and their derivatives, like protein hydrolysates, peptides and amino acids, possess high nutritional value and provide a wide range of biological activity. They serve as sources for development of functional ingredients that draw the attention of specialists in the food production and biomedical industries, as well as the livestock feed industry. Enzymatic hydrolysis of proteins is a popular process for obtaining bioactive peptides with multifunctional properties. The purpose of this study is to obtain a hydrolysate of ovalbumin with a high degree of hydrolysis and to determine its functional and technological parameters. The research presents a two-stage scheme of ovalbumin hydrolysis with the help of pepsin and trypsin which provide high degree of hydrolysis (82–83%). The fractional composition of the hydrolysate is determined. The fractional composition is represented by three main fractions (high, medium and low molecular weight). The summarized antioxidant activity (SAA) of the hydrolysate is considered within the dynamics of the hydrolysis process. The highest SAA value was noted after 2 hours, and it amounted to 170.23 mg/l; at the end of hydrolysis the SAA value was equal to 114.31 mg/l. When analyzing the SAA, it was found that the main contribution to the summarized antioxidant activity of the ovalbumin hydrolysate is made by peptides of the medium molecular fraction. The microfiltration process, used in the research, made it possible to separate high-molecular compounds, which led to an increase in the SAA of the hydrolysate to 189.9 mg/l. The main functional and technological parameters of the hydrolysate are determined in this research. The comprehensive study of the biological activity and functional characteristics of egg protein hydrolysates and their peptides provides a theoretical basis for expanding the range of functional ingredients obtained from food proteins and for replenishing the range of functional foods.</p></abstract><trans-abstract xml:lang="ru"><p>Chicken eggs proteins and their derivatives, like protein hydrolysates, peptides and amino acids, possess high nutritional value and provide a wide range of biological activity. They serve as sources for development of functional ingredients that draw the attention of specialists in the food production and biomedical industries, as well as the livestock feed industry. Enzymatic hydrolysis of proteins is a popular process for obtaining bioactive peptides with multifunctional properties. The purpose of this study is to obtain a hydrolysate of ovalbumin with a high degree of hydrolysis and to determine its functional and technological parameters. The research presents a two-stage scheme of ovalbumin hydrolysis with the help of pepsin and trypsin which provide high degree of hydrolysis (82–83%). The fractional composition of the hydrolysate is determined. The fractional composition is represented by three main fractions (high, medium and low molecular weight). The summarized antioxidant activity (SAA) of the hydrolysate is considered within the dynamics of the hydrolysis process. The highest SAA value was noted after 2 hours, and it amounted to 170.23 mg/l; at the end of hydrolysis the SAA value was equal to 114.31 mg/l. When analyzing the SAA, it was found that the main contribution to the summarized antioxidant activity of the ovalbumin hydrolysate is made by peptides of the medium molecular fraction. The microfiltration process, used in the research, made it possible to separate high-molecular compounds, which led to an increase in the SAA of the hydrolysate to 189.9 mg/l. The main functional and technological parameters of the hydrolysate are determined in this research. The comprehensive study of the biological activity and functional characteristics of egg protein hydrolysates and their peptides provides a theoretical basis for expanding the range of functional ingredients obtained from food proteins and for replenishing the range of functional foods.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ovalbumin</kwd><kwd>pepsin</kwd><kwd>trypsin</kwd><kwd>hydrolysate</kwd><kwd>fractionation</kwd><kwd>antioxidant activity</kwd><kwd>functional and technological parameters</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ovalbumin</kwd><kwd>pepsin</kwd><kwd>trypsin</kwd><kwd>hydrolysate</kwd><kwd>fractionation</kwd><kwd>antioxidant activity</kwd><kwd>functional and technological parameters</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">The work was supported by the grant of the Russian Science Foundation No.23–26–00058 “Development of an integrated approach to reducing the allergenicity of meat products of mass consumption”</funding-statement><funding-statement xml:lang="en">The work was supported by the grant of the Russian Science Foundation No.23–26–00058 “Development of an integrated approach to reducing the allergenicity of meat products of mass consumption”</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">Du, Z., Li, Y. 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