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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">vguit</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Воронежского государственного университета инженерных технологий</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Voronezh State University of Engineering Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-910X</issn><issn pub-type="epub">2310-1202</issn><publisher><publisher-name>VSUET</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20914/2310-1202-2017-1-271-275</article-id><article-id custom-type="elpub" pub-id-type="custom">vguit-1415</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>Химическая технология</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Fundamental and Applied chemistry, chemical technology</subject></subj-group></article-categories><title-group><article-title>Количественное определение флавоноидов ладанника шалфеелистного (Cistus salviifolius)</article-title><trans-title-group xml:lang="en"><trans-title>Quantitative determination of sage-leaved rockrose (Cistus salviifolius) flavonoids</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>Элькаиб</surname><given-names>Х. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Elkaib</surname><given-names>H. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант, кафедра биотехнологии и биоэкологии, ул. Свердлова, 13а, г. Минск, 220006, Белоруссия</p></bio><bio xml:lang="en"><p>graduate student, biotechnology and bioecology department, 13a, Sverdlova str., 220006, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">xycam83@mail.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>Леонтьев</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Leontiev</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к. х. н., доцент, заведующий кафедрой, кафедра биотехнологии и биоэкологии, ул. Свердлова, 13а, г. Минск, 220006, Белоруссия</p></bio><bio xml:lang="en"><p>candidate of chemical sciences, associate professor, head of the department, biotechnology and bioecology department, 13a, Sverdlova str., 220006, Minsk, Republic of Belarus</p></bio><email xlink:type="simple">leontiev@belstu.by</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>Саввин</surname><given-names>П. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Savvin</surname><given-names>P. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к. т. н., доцент, кафедра химии и химической технологии органических соединений и переработки полимеров, пр-т Революции, 19, г. Воронеж, 394036, Россия</p></bio><bio xml:lang="en"><p>doctor of chemical sciences, professor, chemistry and chemical technology of organic compounds and polymer processing department, Revolution Av., 19 Voronezh, 394036, Russia</p></bio><email xlink:type="simple">pashkasavvin@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный технологический университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Technological University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Воронежский государственный университет инженерных технологий</institution></aff><aff xml:lang="en"><institution>Voronezh state university of engineering technologies</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2017</year></pub-date><volume>79</volume><issue>1</issue><fpage>271</fpage><lpage>275</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Элькаиб Х.М., Леонтьев В.Н., Саввин П.Н., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Элькаиб Х.М., Леонтьев В.Н., Саввин П.Н.</copyright-holder><copyright-holder xml:lang="en">Elkaib H.M., Leontiev V.N., Savvin P.N.</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.vestnik-vsuet.ru/vguit/article/view/1415">https://www.vestnik-vsuet.ru/vguit/article/view/1415</self-uri><abstract><p>Широкое применение биофлавоноидов, обусловленное их противомикробной активностью и антиоксидантными свойствами, вызывает необходимость их раздельного определения при совместном присутствии. При этом отмечается, что суммарное содержание флавоноидов, определенное разными спектрофотометрическими методами в одних и тех же образцах, различается и зависит от структуры индивидуальных флавоноидов, входящих в состав образцов. В работе представлены результаты исследований по определению содержания флавоноидов во фракции сухого экстракта ладанника шалфеелистного (Cistus salviifolius), обладающей антимикробной активностью по отношению к бактериям рода Pseudomonas, вызывающим порчу белоксодержащих пищевых продуктов. Выдедение флавоноидов проводили последовательным экстрагированием водно-спиртовыми растворами, фильтрованием и растворением сухого остатка в изопропиловом спирте с последующим пропусканием через слои геля. Рассмотрены следующие методики определения флавоноидов: реакция с реактивом Фолина-Чикальтеу (с использованием в качестве стандарта кверцетина), реакция с хлоридом алюминия и с 2,4-динитрофенилгидразином. При окислении в щелочной среде реактивом Фолина-Чикальтеу, представляющим собой фосфо-молибдовольфрамовые гетерополикомплексы флавонолы, флавин-3-олы и флавоны могут превращаться в хиноидные соединения, имеющие полосы поглощения в видимой области спектра. Взаимодействовать с AlCl3 могут только фла-вонолы и флавоны, имеющие гидроксильные группы в положениях 3 и 5. 2,4-динитрофенилгидразин взаимодействует только с флавонолами. Приведены полученные калибровочные кривые и структурные формулы флавоноидов, которые могут быть определены представленными методами. Установлено, что в нем содержится флaвонолов – 0,21 мг/мг, флавонов – 0,17 мг/мг и флавин-3-олов – 0,06 мг/мг.</p></abstract><trans-abstract xml:lang="en"><p>The widespread use of bioflavonoids, due to their antimicrobial activity and antioxidant properties, necessitates their separate determination in a joint presence. It is noted that the total content of flavonoids, determined by different spectrophotometric methods in the same samples, differs and depends on the structure of the individual flavonoids that make up the samples. The paper presents the results of studies to determine the content of flavonoids in the fraction of the dry extract of shalfeeloid canthus (Cistus salviifolius), which has antimicrobial activity against bacteria of the genus Pseudomonas, which causes damage to protein-containing food products. Curing flavonoids by sequential extraction with aqueous alcohol solutions, filtering and dissolving the dry residue in isopropyl alcohol followed by passing through the gel layers. The following methods for the determination of flavonoids are considered: reaction with Folin-Chikalteu reagent (using quercetin as standard), reaction with aluminum chloride and 2,4-dinitrophenylhydrazine. When oxidized in alkaline medium by the Folin-Chikalteu reagent, which is the phospho-molybdotungstate heteropolycomplexes of flavonols, flavin-3-ol and flavones can be converted into quinoid compounds having absorption bands in the visible region of the spectrum. Only flavones and flavones having hydroxyl groups at positions 3 and 5 can interact with AlCl3. 2,4-dinitrophenylhydrazine only interacts with flavonols. The obtained calibration curves and structural formulas of flavonoids are given, which can be determined by the methods presented. It was found to contain flavonols 0.21 mg / mg, flavones 0.17 mg / mg and flavin-3-ol 0.06 mg/mg.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>флавоноиды</kwd><kwd>ладанник шалфеелистный</kwd><kwd>бактерии рода Pseudomonas</kwd></kwd-group><kwd-group xml:lang="en"><kwd>flavonoids</kwd><kwd>sage faucet</kwd><kwd>bacteria of the genus Pseudomonas</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">Kumar Sh., Pandey K. A. Chemistry and Biological Activities of Flavonoids: An Overview // The Scientific World Journal. 2014. P. 201-216.</mixed-citation><mixed-citation xml:lang="en">Kumar Sh., Pandey K. A. Chemistry and Biological Activities of Flavonoids: An Overview [The Scientific World Journal] 2014. pp. 201-216.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Reda S. Mohammed et al. 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