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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">pmj</journal-id><journal-title-group><journal-title xml:lang="ru">Тихоокеанский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Pacific Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1609-1175</issn><publisher><publisher-name>TGMU</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">pmj-700</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>МЕТОДИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METHODS</subject></subj-group></article-categories><title-group><article-title>РАЗРАБОТКА МЕТОДА СТАНДАРТИЗАЦИИ НИЗКОМОЛЕКУЛЯРНЫХ ПЕКТИНОВ</article-title><trans-title-group xml:lang="en"><trans-title>DEVELOPMENT OF A METHOD OF STANDARDIZATION FOR LOW-MOLECULAR PECTINS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хожаенко</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Khozhaenko</surname><given-names>E. V.</given-names></name></name-alternatives><email xlink:type="simple">khozhaenko.ev@dvfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хотимченко</surname><given-names>Р. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Khotimchenko</surname><given-names>R. Yu.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ковалев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kovalev</surname><given-names>V. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Подкорытова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Podkorytova</surname><given-names>E. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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>Хотимченко</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Khotimchenko</surname><given-names>M. Yu.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт биологии моря им. А.В. Жирмунского ДВО РАН; Дальневосточного федерального университета</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Marine Biology named after A.V. Zhirmunskiy Far Eastern Branch of RAS; School of Biomedicine of Far Eastern Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт биологии моря им. А.В. Жирмунского ДВО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Marine Biology named after A.V. Zhirmunskiy Far Eastern Branch of RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2014</year></pub-date><volume>0</volume><issue>2</issue><fpage>83</fpage><lpage>87</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Хожаенко Е.В., Хотимченко Р.Ю., Ковалев В.В., Подкорытова Е.А., Хотимченко М.Ю., 2014</copyright-statement><copyright-year>2014</copyright-year><copyright-holder xml:lang="ru">Хожаенко Е.В., Хотимченко Р.Ю., Ковалев В.В., Подкорытова Е.А., Хотимченко М.Ю.</copyright-holder><copyright-holder xml:lang="en">Khozhaenko E.V., Khotimchenko R.Y., Kovalev V.V., Podkorytova E.A., Khotimchenko M.Y.</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.tmj-vgmu.ru/jour/article/view/700">https://www.tmj-vgmu.ru/jour/article/view/700</self-uri><abstract><p>Разработан метод стандартизации олигоуронидов по их молекулярно-массовому распределению с использованием эксклюзионной хроматографии и анализа концевых восстанавливающих групп. Исследовалось влияние элюента на разделение олигоуронидов с молекулярными массами 2,8-15,5 кДа на колонке с гидрофильным сорбентом Shodex Asahipak GS-320 7E. Установлено, что оптимальное разделение олигоуронидов по молекулярным массам достигается в 0,1М нитрате натрия при 35 °С и скорости элюента 0,8 мл/мин. Проведена оценка модифицированного тетразолиевого метода и метода Нельсона для анализа концевых групп олигоуронидов. Установлено, что метод Нельсона позволяет получать более точные и надежные результаты и пригоден для стандартизации олигоуронидов.</p></abstract><trans-abstract xml:lang="en"><p>Object of this study was developing a method of standardization of low-molecular pectins-oligouronids according to the chain-length distribution for subsequent validation. Methods. Standardization of oligouronids was carried out using exclusion chromatography techniques and analysis of reducing end groups. The authors studied the eluent influence on the separation of oligouronids with molecular weights of 2.8-15.5 kDa on column with hydrophilic sorbent Shodex Asahipak GS-320 7E. Results. It has been established that the optimal separation of oligouronids on molecular weight is achieved in 0.1M of sodium nitrate at 35 °C and the eluent speed of 0.8 ml/min. The values of mass average and number average for oligouronids molecular weights obtained respectively with the exclusion chromatography methods and analysis of the end groups were similar that indicates a relatively small value of polydisperse samples and the validity of these methods for standardizing oligouronids. Conclusions. When comparing the modified tetrazolium method and Nelson method for analyzing oligouronids end groups it was determined that Nelson method allows to obtain more accurate and reliable results and it is applicable for oligouronids standardization.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>пектин</kwd><kwd>молекулярно-массовое распределение</kwd><kwd>эксклюзионная хроматография</kwd><kwd>концевые восстанавливающие группы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pectin</kwd><kwd>chain-length distribution</kwd><kwd>exclusion chromatography</kwd><kwd>reducing end groups</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">Хасина Э.И., Требухов Е.Е., Хотимченко Ю.С., Ковалев В.В. Средство, обладающее адаптогенной активностью, и композиция на его основе. 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