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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">vuzbiochemi</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Прикладная химия и биотехнология</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of Universities. Applied Chemistry and Biotechnology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-2925</issn><issn pub-type="epub">2500-1558</issn><publisher><publisher-name>ИРНИТУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/2227-2925-2020-10-3-470-478</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-420</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>ФИЗИКО-ХИМИЧЕСКАЯ БИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICOCHEMICAL BIOLOGY</subject></subj-group></article-categories><title-group><article-title>Определениe фенольных соединений в водно-этанольных экстрактах листьев Populus tremula L. c помощью высокоэффективной жидкостной хроматографии</article-title><trans-title-group xml:lang="en"><trans-title>Determination of phenolic compounds in water-ethanol extracts of Populus tremula L. leaves using high-performance liquid chromatography</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>Коцупий</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotsupiy</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Коцупий Ольга Викторовна, к.б.н., научный сотрудник</p><p>630090, г. Новосибирск, ул. Золотодолинская, 101</p></bio><bio xml:lang="en"><p>Olga V. Kotsupiy, Cand. Sci. (Biology), Researcher</p><p>101, Zolotodolinskaya St., Novosibirsk, 630090</p></bio><email xlink:type="simple">olnevaster@gmail.com</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>Загурская</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zagurskaya</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Загурская Юлия Васильевна, к.б.н., научный сотрудник</p><p>650000, г. Кемерово, пр-т Советский, 18</p></bio><bio xml:lang="en"><p>Yulia V. Zagurskaya, Cand. Sci. (Biology), Researcher</p><p>18, Sovetskii Ave., Kemerovo, 650000</p></bio><email xlink:type="simple">syjil@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>Уфимцев</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ufimtsev</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Уфимцев Владимир Иванович, к.б.н., ведущий научный сотрудник</p><p>650000, г. Кемерово, пр-т Советский, 18</p></bio><bio xml:lang="en"><p>Vladimir I. Ufimtsev, Cand. Sci. (Biology), Leading Researcher</p><p>18, Sovetskii Ave., Kemerovo, 650000</p></bio><email xlink:type="simple">uwy2079@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Центральный сибирский ботанический сад СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Сentral Siberian Botanical Garden SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный исследовательский центр угля и углехимии СО РАН (Институт экологии человека)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center of Coal and Coal Chemistry SB RAS (Institute of Human Ecology)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>08</day><month>10</month><year>2020</year></pub-date><volume>10</volume><issue>3</issue><fpage>470</fpage><lpage>478</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Коцупий О.В., Загурская Ю.В., Уфимцев В.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Коцупий О.В., Загурская Ю.В., Уфимцев В.И.</copyright-holder><copyright-holder xml:lang="en">Kotsupiy O.V., Zagurskaya Y.V., Ufimtsev V.I.</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://vuzbiochemi.elpub.ru/jour/article/view/420">https://vuzbiochemi.elpub.ru/jour/article/view/420</self-uri><abstract><p>Водно-этанольный экстракт листьев Populus tremula L. (осина обыкновенная) включает различные группы фенольных соединений с разной полярностью и различной концентрацией веществ, что осложняет аналитическую задачу при определении их содержания. Цель работы – изучить условия твердофазной экстракции и высокоэффективной жидкостной хроматографии при исследовании содержания разных групп фенольных соединений в водно-этанольных экстрактах листьев P. tremula. Для извлечения фенольных соединений проводили исчерпывающую экстракцию этанолом. Твердофазную экстракцию осуществляли с помощью патрона Диапак С16, после чего элюаты пропускали через мембранный фильтр с диаметром пор 0,45 мкм. Методом высокоэффективной жидкостной хроматографии определяли содержание фенолокислот и гликозидов флавоноидов, а также салицина и индивидуальных компонентов гликозидов флавоноидов: гиперозида, рутина, астрагалина и двух неиндентифицированных гликозидов флавоноидов в водной (аналит 1) и водно-спиртовой фракциях (аналит 2) в двух системах, различающихся по градиенту элюирования. Доказана необходимость анализа первичного водного элюата совместно или параллельно с основной водно-спиртовой фракцией при подготовке экстрактов листьев P. tremula для высокоэффективной жидкостной хроматографии с помощью картриджей твердофазной экстракции. Для разделения экстракта с целью определения содержания компонентов гидроксикоричных и гидроксибензойных кислот предпочтительнее использовать систему 2, для определения содержания фенологликозидов (салицина) – систему 1. Гликозиды флавоноидов (гиперозид, рутин, астрагалин и два неидентифицированных флавоноида) вносят наиболее весомый вклад в различие двух фракций – водной и водно-спиртовой.</p></abstract><trans-abstract xml:lang="en"><p>The analytical task of determining the phenolic compound content of water-ethanol extracts of Populus tremula L. (common aspen) leaves is complicated by the heterogeneity of compound groups having different polarities and appearing in varying concentrations. The purpose of the present work is to study the conditions of solid-phase extraction and high-performance liquid chromatography used to analyse the content of different groups of phenolic compounds in water-ethanol extracts of leaves from the P. tremula plant. In order to facilitate the derivation of phenolic compounds, an exhaustive extraction process was carried out using ethanol. Solid-phase extraction was carried out using a Diapak C16 cartridge, after which the eluates were passed through a membrane filter having a pore diameter of 0.45 μm. The high-performance liquid chromatography method was used to determine the content of phenolic acids and flavonoid glycosides, as well as salicin and individual flavonoid glycoside components: hyperoside, rutin, astragalin and two unidentified flavonoid glycosides in aqueous (analyte 1) and aqueous-alcoholic fractions (analyte 2) in two systems along the gradient elution. The requirement of analysing the primary aqueous eluate together or in parallel with the main aqueous-alcoholic fraction in the preparation of P. tremula leaf extracts for high-performance liquid chromatography using solid-phase extraction cartridges was substantiated. For separating the extract to determine the hydroxycinnamic and hydroxybenzoic acid content, it is preferable to use system 2; for determining the phenologlycoside (salicin) content, system 1 is more effective. Flavonoid glycosides (hyperoside, rutin, astragalin and two unidentified flavonoids) make the most significant contribution to the difference between the aqueous and aqueous-alcoholic fractions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фенольные соединения</kwd><kwd>Populus tremula</kwd><kwd>твердофазная экстракция</kwd><kwd>высокоэффективная жидкостная хроматография</kwd><kwd>пробоподготовка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>phenolic compounds</kwd><kwd>Populus tremula</kwd><kwd>solid-phase extraction</kwd><kwd>high-performance liquid chromatography (HPLC)</kwd><kwd>sample preparation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках проектов Центрального сибирского ботанического сада СО РАН № АААА-А17-117012610051-5 и Федерального исследовательского центра угля и углехимии СО РАН № АААА-А17-117041410053-1.</funding-statement><funding-statement xml:lang="en">The work was carried out within the framework of the projects of Central Siberian Botanic Garden SB RAS no. 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