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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Food Processing: Techniques and Technology</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Food Processing: Techniques and Technology</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Техника и технология пищевых производств</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2074-9414</issn>
   <issn publication-format="online">2313-1748</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">126534</article-id>
   <article-id pub-id-type="doi">10.21603/2074-9414-2026-2-2633</article-id>
   <article-id pub-id-type="edn">YLIPNL</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>ОРИГИНАЛЬНАЯ СТАТЬЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>ORIGINAL ARTICLE</subject>
    </subj-group>
    <subj-group>
     <subject>ОРИГИНАЛЬНАЯ СТАТЬЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Hemp Protein in the Food Industry: Optimizing Alkaline Extraction and Isoelectric Precipitation</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Оптимизация щелочной экстракции и изоэлектрического осаждения белка конопли для использования в пищевой промышленности</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-7677-6583</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Алексаночкин</surname>
       <given-names>Денис Игоревич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Aleksanochkin</surname>
       <given-names>Denis I.</given-names>
      </name>
     </name-alternatives>
     <email>aleksanochkindi@list.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2478-1705</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Фоменко</surname>
       <given-names>Иван Андреевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Fomenko</surname>
       <given-names>Ivan A.</given-names>
      </name>
     </name-alternatives>
     <email>fomenkoia@mgupp.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-0985-9505</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Детинкин</surname>
       <given-names>Илья Александрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Detinkin</surname>
       <given-names>Ilya A.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4298-0927</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Чернуха</surname>
       <given-names>Ирина Михайловна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Chernukha</surname>
       <given-names>Irina M.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-4"/>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9287-0585</contrib-id>
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Машенцева</surname>
       <given-names>Наталья Геннадьевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Mashentseva</surname>
       <given-names>Natalia G.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Российский биотехнологический университет (РОСБИОТЕХ)</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Biotechnological University (ROSBIOTECH)</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Российский биотехнологический университет (РОСБИОТЕХ)</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Biotechnological University (ROSBIOTECH)</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Российский биотехнологический университет (РОСБИОТЕХ)</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Biotechnological University (ROSBIOTECH)</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Российский биотехнологический университет (РОСБИОТЕХ)</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Biotechnological University (ROSBIOTECH)</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Федеральный научный центр пищевых систем им. В. М. Горбатова РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">V.M. Gorbatov Federal Research Center for Food Systems of RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Российский биотехнологический университет (РОСБИОТЕХ)</institution>
     <city>Moscow</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Russian Biotechnological University (ROSBIOTECH)</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2026-06-30T00:00:00+03:00">
    <day>30</day>
    <month>06</month>
    <year>2026</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2026-06-30T00:00:00+03:00">
    <day>30</day>
    <month>06</month>
    <year>2026</year>
   </pub-date>
   <volume>56</volume>
   <issue>2</issue>
   <fpage>247</fpage>
   <lpage>259</lpage>
   <history>
    <date date-type="received" iso-8601-date="2025-09-24T00:00:00+03:00">
     <day>24</day>
     <month>09</month>
     <year>2025</year>
    </date>
    <date date-type="accepted" iso-8601-date="2026-03-10T00:00:00+03:00">
     <day>10</day>
     <month>03</month>
     <year>2026</year>
    </date>
   </history>
   <self-uri xlink:href="https://fptt.ru/en/issues/24534/24552/">https://fptt.ru/en/issues/24534/24552/</self-uri>
   <abstract xml:lang="ru">
    <p>Растущий интерес к растительным белкам как к экологичной и эффективной альтернативе животным белкам обусловил появление новых продуктов на рынке, в т. ч. изолята белка конопли. Ключевым этапом в технологии получения белковых препаратов из растительного сырья является щелочная экстракция (pH 6,0–12,0) с последующим изоэлектрическим осаждением. Цель исследования – изучить влияние параметров экстракции и изоэлектрического осаждения (с расчетом теоретической и экспериментальной изоэлектрической точки) на выход белка из гидролизованного жмыха конопли и определить условия максимизации.&#13;
Объект исследования – жмых конопли сорта Вера. Для оптимизации параметров экстракции (pH, температура, продолжительность) был использован трехфакторный план Бокса-Бенкена (15 экспериментальных точек).&#13;
Установлено, что добавление хлорида натрия снижает эффективность экстракции на 6,8–13,5 % по сравнению с щелочным методом. Оптимальная чистота белка (92,6–93,1 %) достигается при изоэлектрическом осаждении в диапазоне pH 4,4–4,6, что не соответствует теоретической изоэлектрической точке (6,95–7,22). Анализ белкового профиля выделенной фракции выявил преобладание эдестина (~ 38 кДа) и альбумина (~ 21 кДа). Полученный изолят белка конопли содержит от 89,53 до 92,28 % белка (по методу Барнштейна и Кьельдаля соответственно), что свидетельствует о высоком качестве продукта. Регрессионная модель адекватно описывает технологический процесс (R2 = 0,983) с оптимальными условиями экстракции – pH 11,2, температура 52 °C и длительность 3 ч.&#13;
Использование щелочного экстрагирования с последующим осаждением белка в его изоэлектрической точке позволяет эффективно выделять белок с выходом до 80 % относительно его количества в сырье, содержащем 34,32 ± 3,43 % сырого протеина.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>preparations are obtained from plant materials by alkaline extraction (pH 6.0–12.0) followed by isoelectric precipitation. This article describes the effect of extraction and isoelectric precipitation parameters on protein yield from hydrolyzed hemp cake.&#13;
Calculating the theoretical and experimental isoelectric point made it possible to improve the procedure and increase the yield.&#13;
The study featured hemp cake of the Vera variety. A three-factor Box–Behnken design (15 experimental points) optimized the extraction parameters of pH, temperature, and time.&#13;
The resulting regression model adequately described the process (R2 = 0.983) with the optimal extraction conditions as pH 11.2; 52°C; 3 h. Sodium chloride reduced extraction efficiency by 6.8–13.5% compared to the alkaline method. The optimal protein purity (92.6–93.1%) was achieved with isoelectric precipitation in the pH range of 4.4–4.6, which did not correspond to the modeled isoelectric point (6.95–7.22). The protein profile analysis of the isolated fraction demonstrated the predominance of edestin (~ 38 kDa) and albumin (~ 21 kDa). The resulting hemp protein isolate contained 89.53 to 92.28% protein, according to the Barnstein and Kjeldahl methods, respectively, which indicated a high-quality product.&#13;
The use of alkaline extraction followed by protein precipitation in isoelectric point provided efficient protein isolation with a yield reaching 80% relative to its content in the raw material, containing 34.32 ± 3.43% crude protein.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>Промышленная конопля</kwd>
    <kwd>экстракция белка</kwd>
    <kwd>изоэлектрическая точка</kwd>
    <kwd>изолят белка</kwd>
    <kwd>оптимизация</kwd>
    <kwd>математическая модель</kwd>
    <kwd>степень экстракции</kwd>
    <kwd>профиль белка конопли</kwd>
    <kwd>биоинформатика</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>Industrial hemp</kwd>
    <kwd>protein extraction</kwd>
    <kwd>isoelectric point</kwd>
    <kwd>protein isolate</kwd>
    <kwd>optimization</kwd>
    <kwd>mathematical model</kwd>
    <kwd>extraction degree</kwd>
    <kwd>hemp protein profile</kwd>
    <kwd>bioinformatics</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Работа выполнена за счет гранта Российского научного фонда (проект № 25-16-00178).</funding-statement>
    <funding-statement xml:lang="en">The research was supported by the Russian Science Foundation, Project no. 25-16-00178.</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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