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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Russian Journal of Biological Physics and Chemisrty</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Russian Journal of Biological Physics and Chemisrty</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>АКТУАЛЬНЫЕ ВОПРОСЫ БИОЛОГИЧЕСКОЙ ФИЗИКИ И ХИМИИ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2499-9962</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">54438</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Общая биофизика</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>General biophysics</subject>
    </subj-group>
    <subj-group>
     <subject>Общая биофизика</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">INVESTIGATION OF THE PHYSICO-CHEMICAL AND KINETIC PROPERTIES OF BROMELAIN IN THE FREE AND IMMOBILIZED STATE</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИССЛЕДОВАНИЕ ФИЗИКО-ХИМИЧЕСКИХ И КИНЕТИЧЕСКИХ СВОЙСТВ БРОМЕЛИНА В СВОБОДНОМ И ИММОБИЛИЗОВАННОМ СОСТОЯНИЯХ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Королева</surname>
       <given-names>В А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Koroleva</surname>
       <given-names>V A</given-names>
      </name>
     </name-alternatives>
     <email>koroleva_victoria@bk.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Холявка</surname>
       <given-names>М Г</given-names>
      </name>
      <name xml:lang="en">
       <surname>Holyavka</surname>
       <given-names>M G</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Артюхов</surname>
       <given-names>В Г</given-names>
      </name>
      <name xml:lang="en">
       <surname>Artukhov</surname>
       <given-names>V G</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Воронежский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Voronezh state university</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Воронежский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Voronezh state university</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Воронежский государственный университет</institution>
     <country>ru</country>
    </aff>
    <aff>
     <institution xml:lang="en">Voronezh state university</institution>
     <country>ru</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2019-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2019</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2019-09-25T20:22:29+03:00">
    <day>25</day>
    <month>09</month>
    <year>2019</year>
   </pub-date>
   <volume>4</volume>
   <issue>3</issue>
   <fpage>322</fpage>
   <lpage>326</lpage>
   <history>
    <date date-type="received" iso-8601-date="2019-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2019</year>
    </date>
    <date date-type="accepted" iso-8601-date="2019-09-20T20:22:29+03:00">
     <day>20</day>
     <month>09</month>
     <year>2019</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54438/view">https://rusjbpc.ru/en/nauka/article/54438/view</self-uri>
   <abstract xml:lang="ru">
    <p>Бромелин обладает широким спектром терапевтической эффективности: демонстрирует in vitro и in vivo противовоспалительную, антитромботическую и фибринолитическую виды активности. Энзим модулирует функции молекул адгезии в крови и эндотелиальных клетках, а также регулирует и активирует различные иммунные клетки и продукцию цитокинов. Фермент используется в качестве альтернативного или дополнительного лекарственного средства для глюкокортикоидов, нестероидных противоревматических средств и иммуномодулирующих агентов. В представленной работе изучены физико-химические и кинетические свойства бромелина, свободного и иммобилизованного на матрице хитозана. Установлено, что диапазон температур для функционирования растворимого и сорбированного бромелина находится в пределах от 50 до 70ºC; оптимальное значение pH для функционирования нативного и иммобилизованного фермента составляет 7,5; максимальные значения скорости ферментативного катализа для свободного и иммобилизованного препарата наблюдаются при концентрации азоказеина 0,4 мМ; максимальная скорость реакции для бромелина, иммобилизованного на среднемолекулярном хитозане, снижается в 2,2 раза, а для сорбированного на высокомолекулярном хитозане - в 1,7 раза. Иммобилизация бромелина на матрице хитозана не приводит к сдвигу температурного оптимума, но увеличивает термостабильность фермента.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Bromelain has a wide range of therapeutic efficacy: it demonstrates in vitro and in vivo anti-inflammatory, antithrombotic and fibrinolytic activities. The enzyme modulates the functions of adhesion molecules in the blood and endothelial cells, as well as regulates and activates various immune cells and cytokine production. The enzyme is used as an alternative or additional preparation for glucocorticoids, non-steroidal antirheumatic preparations and immunomodulating agents. In the present work, the physico-chemical and kinetic properties of bromelain in free and immobilized on the chitosan matrix states were studied. It has been established that the temperature range for the functioning of soluble and sorbed bromelain ranges from 50 to 70ºC; the optimum pH for the functioning of the native and immobilized enzyme is 7.5; the maximum rate of enzymatic catalysis of free and immobilized preparations is observed at azocasein concentrations of 0.4 mM; the maximum reaction rate for bromelain immobilized on medium molecular chitosan decreases 2.2 times, and for enzyme sorbed on high molecular chitosan it decreases 1.7 times. Immobilization of bromelain on the chitosan matrix does not lead to a shift in the temperature optimum, but increases the thermal stability of the enzyme.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>бромелин</kwd>
    <kwd>иммобилизация</kwd>
    <kwd>физико-химические свойства ферментов</kwd>
    <kwd>хитозан</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>bromelain</kwd>
    <kwd>immobilization</kwd>
    <kwd>physico-chemical properties of enzymes</kwd>
    <kwd>chitosan</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
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