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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">spfp</journal-id><journal-title-group><journal-title xml:lang="ru">Хранение и переработка сельхозсырья</journal-title><trans-title-group xml:lang="en"><trans-title>Storage and Processing of Farm Products</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-9669</issn><issn pub-type="epub">2658-767X</issn><publisher><publisher-name>РОСБИОТЕХ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.36107/spfp.2021.191</article-id><article-id custom-type="elpub" pub-id-type="custom">spfp-191</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>БИОТЕХНОЛОГИЧЕСКИЕ И МИКРОБИОЛОГИЧЕСКИЕ АСПЕКТЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOTECHNOLOGICAL AND MICROBIOLOGICAL ASPECTS</subject></subj-group></article-categories><title-group><article-title>Контроль активности воды в технологии  лактулозосодержащей сыворотки</article-title><trans-title-group xml:lang="en"><trans-title>Monitoring of Water Activity in Lactulose-Containing  Serum Technology</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2310-2838</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пономарева</surname><given-names>Елена Ивановна</given-names></name><name name-style="western" xml:lang="en"><surname>Ponomareva</surname><given-names>Elena I.</given-names></name></name-alternatives><email xlink:type="simple">elena6815@yandex.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/0000-0003-1612-0018</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Титов</surname><given-names>Сергей Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Titov</surname><given-names>Sergey A.</given-names></name></name-alternatives><email xlink:type="simple">125titov@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жданов</surname><given-names>Всеволод Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Zhdanov</surname><given-names>Vladimir N.</given-names></name></name-alternatives><email xlink:type="simple">125titov@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2949-2048</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Губарева</surname><given-names>Юлия Павловна</given-names></name><name name-style="western" xml:lang="en"><surname>Gubareva</surname><given-names>Julia P.</given-names></name></name-alternatives><email xlink:type="simple">yuliya.gubareva.95@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4015-2485</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Терещенко</surname><given-names>Дарина Анатольевна</given-names></name><name name-style="western" xml:lang="en"><surname>Tereshchenko</surname><given-names>Darina A.</given-names></name></name-alternatives><email xlink:type="simple">dasga2005@yndex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Воронежский государственный университет&#13;
 инженерных технологий»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voronezh State University of Engineering Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Воронежский государственный университет  инженерных технологий»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Voronezh State University of Engineering Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>OOO «Домодедово Кэтеринг»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC "Domodedovo Catering”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>30</day><month>03</month><year>2021</year></pub-date><volume>0</volume><issue>1</issue><issue-title>Хранение и переработка сельхозсырья</issue-title><fpage>82</fpage><lpage>92</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Пономарева Е.И., Титов С.А., Жданов В.Н., Губарева Ю.П., Терещенко Д.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Пономарева Е.И., Титов С.А., Жданов В.Н., Губарева Ю.П., Терещенко Д.А.</copyright-holder><copyright-holder xml:lang="en">Ponomareva E.I., Titov S.A., Zhdanov V.N., Gubareva J.P., Tereshchenko D.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.spfp-mgupp.ru/jour/article/view/191">https://www.spfp-mgupp.ru/jour/article/view/191</self-uri><abstract><p>Одним из основных способов обогащения молочной сыворотки пребиотическими веществами является модифицирование ее состава путем мембранной электрофлотации с последующей изомеризацией. В результате этих процессов происходит частичный переход содержащейся в сыворотке лактозы в лактулозу. В настоящей работе исследовали нанофильтрационное концентрирование лактулозосодержащей сыворотки,  полученной мембранной электрофлотацией, с целью выяснения роли осмотических явлений в этом процессе. Зависимость скорости нанофильтрации сыворотки после электрофлотационной и термической обработки от концентрации сухих веществ имеет «плато», начинающееся при концентрации 8-10 %. Это связано с тем, что лактоза и минеральные соли в слоях сыворотки, прилегающих к мембране, связывают значительное количество воды в гидратных оболочках. Благодаря возникающему на мембране градиенту концентрации свободной воды происходит ее диффузия через мембрану. Измерения активности воды в лактулозосодержащей флотированной сыворотке в зависимости от концентрации сухих веществ подтверждают это предположение. На основании этих измерений сделана оценка увеличения концентрации сыворотки в пограничном слое по сравнению с объемом, оказавшегося равным 3. Влиянию гидратации сухих веществ сыворотки на скорость фильтрации можно дать теоретическое обоснование в рамках количественной физической модели, связывающей скорость фильтрации с активностью воды. Установлено, что использование лактулозосодержащей пищевой добавки на основе творожной сыворотки в производстве хлебобулочных изделий способствует получению готового продукта с пребиотическими свойствами. Кроме этого, применение модифицированной творожной сыворотки позволит обогатить полученное изделие минеральными веществами.</p></abstract><trans-abstract xml:lang="en"><p>One of the main ways of enriching whey with prebiotic substances is to modify its composition by membrane electro-ﬂotation followed by isomerization. As a result of these processes, a partial transition of serum lactose to lactulose occurs. In this work, we studied the nanoﬁltration concentration of the lactulose-containing serum obtained by this method in order to clarify the role of osmotic phenomena in this process. The dependence of the ﬁltration rate of lactulose-containing ﬂotated serum on the solids content undergoes a jump at a solids content of 8-10%. This is due to the fact that the boundary layers with a high concentration of lactose contain mainly water bound in hydration shells. Due to the concentration gradient of free water arising on the membrane, it diffuses through the membrane.. Measurement of water activity in lactulose-containing floated whey depending on the concentration of dry matter confirm this assumption. Based on these measurements, an estimate was made of the increase in the concentration of serum in the boundary layer compared to the volume, which turned out to be equal to 3.The effect of whey solids hydration on the ﬁltration rate can be given a theoretical justiﬁcation in the framework of a quantitative physical model linking ﬁltration rate with water activity. It is established that the use of lactulose-containing food additives based on curd whey in the production of bakery products contributes to the production of a finished product with prebiotic properties. In addition, the use of modified curd whey will enrich the resulting product with minerals.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гидратация пищевых компонентов</kwd><kwd>лактулозосодержащая сыворотка</kwd><kwd>мембранная электрофлотация</kwd><kwd>активность воды</kwd><kwd>хлебобулочные изделия с сывороткой</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lactulose-containing serum</kwd><kwd>membrane electroﬂotation</kwd><kwd>bakery products.</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">Азильханов, А. С., &amp; Смольникова, Ф. Х. (2013). Применение молочной сыворотки в хлебопечении. В Инновационные технологии в пищевой промышленности: наука, образование и производство: Сборник международной научно-технической конференции (с. 69-72). 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