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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">54295</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>MEDICAL BIOPHYSICS AND BIOPHYSICAL CHEMISTRY</subject>
    </subj-group>
    <subj-group>
     <subject>МЕДИЦИНСКАЯ БИОФИЗИКА И БИОФИЗИЧЕСКАЯ ХИМИЯ</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">PHYSICAL AND CHEMICAL PROPERTIES OF FREE AND IMMOBILIZED ON THE CHITOSANE MATRIX FICIN AND PAPAIN</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ФИЗИКО-ХИМИЧЕСКИЕ СВОЙСТВА ФИЦИНА И ПАПАИНА, СВОБОДНЫХ И ИММОБИЛИЗОВАННЫХ НА МАТРИЦЕ ХИТОЗАНА</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>Панкова</surname>
       <given-names>С. М.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Pankova</surname>
       <given-names>S. M.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ольшанникова</surname>
       <given-names>С С</given-names>
      </name>
      <name xml:lang="en">
       <surname>Olshannikova</surname>
       <given-names>S S</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ермолаева</surname>
       <given-names>В В</given-names>
      </name>
      <name xml:lang="en">
       <surname>Ermolaeva</surname>
       <given-names>V V</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Сакибаев</surname>
       <given-names>Ф А</given-names>
      </name>
      <name xml:lang="en">
       <surname>Sakibaev</surname>
       <given-names>F A</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Шеломенцева</surname>
       <given-names>Т Н</given-names>
      </name>
      <name xml:lang="en">
       <surname>Shelometseva</surname>
       <given-names>T N</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-8"/>
    </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-9"/>
    </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>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Воронежский государственный медицинский университет им. Н.Н. Бурденко</institution>
     <city>Воронеж</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Burdenko Voronezh State Medical University</institution>
     <city>Voronezh</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <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-6">
    <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-7">
    <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-8">
    <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-9">
    <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="2018-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2018</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2018-06-25T20:22:29+03:00">
    <day>25</day>
    <month>06</month>
    <year>2018</year>
   </pub-date>
   <volume>3</volume>
   <issue>2</issue>
   <fpage>367</fpage>
   <lpage>372</lpage>
   <history>
    <date date-type="received" iso-8601-date="2018-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2018</year>
    </date>
    <date date-type="accepted" iso-8601-date="2018-06-20T20:22:29+03:00">
     <day>20</day>
     <month>06</month>
     <year>2018</year>
    </date>
   </history>
   <self-uri xlink:href="https://rusjbpc.ru/en/nauka/article/54295/view">https://rusjbpc.ru/en/nauka/article/54295/view</self-uri>
   <abstract xml:lang="ru">
    <p>Исследованы физико-химические и кинетические свойства цистеиновых протеиназ - фицина и папаина. Выявлено, что фицин высоко активен в диапазоне температур от 37 до 60 °С. При 70 °С свободный фицин полностью инактивирован, сорбированный на хитозане энзим сохраняет порядка 50 % активности. Диапазон рабочих температур растворимого и иммобилизованного папаина находится между 50 и 70 °С. При 80 °С нативный фермент больше подвержен термической инактивации, чем энзим, сорбированный на хитозане. Показано, что иммобилизация фицина и папаина на матрицах хитозана способствует расширению их оптимума рН в щелочную область. Максимальная скорость ферментативной реакции нативных и иммобилизованных цистеиновых протеаз наблюдается при концентрации субстрата, равной 0,04 мМ. Сорбция биокатализаторов привела к снижению скорости ферментативного катализа, а также к изменению степени сродства энзимов к субстрату.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The physical, chemical and kinetic properties of cysteine proteinases - ficin and papain were studied. It was found that ficin is high active in the temperature range from 37 to 60 °C. The free ficin is completely inactivated at 70 °C, the enzyme sorbed on the chitosan retains about 50 % of the activity. The operating temperature range of soluble and immobilized papain is between 50 and 70 °C. The native enzyme is more incur to thermal inactivation than the enzyme sorbed on chitosan at 80 °C. It is shown that the immobilization of ficin and papain on chitosan matrices promotes the expansion of their pH optimum to the alkaline region. The maximum rate of enzymatic reaction of native and immobilized cysteine proteases is observed at a substrate concentration of 0,04 mM. Sorption of biocatalysts led to a decrease in the rate of enzymatic catalysis, as well as to a change in the degree of affinity of the enzymes to the substrate.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>фицин</kwd>
    <kwd>папаин</kwd>
    <kwd>иммобилизация</kwd>
    <kwd>физико-химические свойства ферментов</kwd>
    <kwd>хитозан</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>ficin</kwd>
    <kwd>papain</kwd>
    <kwd>immobilization</kwd>
    <kwd>physical and chemical properties of enzymes</kwd>
    <kwd>chitosan</kwd>
   </kwd-group>
  </article-meta>
 </front>
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