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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">10.20914/2310-1202-2016-4-238-244</article-id><article-id custom-type="elpub" pub-id-type="custom">vguit-1221</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>Биотехнология и бионанотехнология</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Biotechnology, bionanotechnology and sugary products technology</subject></subj-group></article-categories><title-group><article-title>Влияние композиций амилолитических ферментов на процесс низкотемпературной биоконверсии нативного крахмала</article-title><trans-title-group xml:lang="en"><trans-title>Influence of amylolytic enzymes compositions on the process of low temperature bioconversion of native starch</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>Лукин</surname><given-names>Н. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukin</surname><given-names>N. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., зам. директора по научной работе,</p><p>ул. Некрасова, 11, п. Красково, Московская обл. 140051</p></bio><bio xml:lang="en"><p>doctor of technical sciences, deputy director,</p><p>Nekrasov str., 11, Kraskovo, Moscow region, 140051</p></bio><email xlink:type="simple">vniik@arrisp.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>Папахин</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Papakhin</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., заведующий лабораторией,</p><p>ул. Некрасова, 11, п. Красково, Московская обл. 140051</p></bio><bio xml:lang="en"><p>candidate of technical sciences, head of laboratory,</p><p>Nekrasov str., 11, Kraskovo, Moscow region, 140051</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бородина</surname><given-names>З. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Borodina</surname><given-names>Z. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., вед. науч. сотр.,</p><p>ул. Некрасова, 11, п. Красково, Московская обл. 140051</p></bio><bio xml:lang="en"><p>candidate of technical sciences, leading researcher,</p><p>Nekrasov str., 11, Kraskovo, Moscow region, 140051</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гулакова</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gulakova</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ст. науч. сотр.,</p><p>ул. Некрасова, 11, п. Красково, Московская обл. 140051</p></bio><bio xml:lang="en"><p>senior researcher,</p><p>Nekrasov str., 11, Kraskovo, Moscow region, 140051</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ВНИИ крахмалопродуктов<country>Россия</country></aff><aff xml:lang="en">All-Russian Research Institute for Starch Products<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>03</day><month>12</month><year>2016</year></pub-date><volume>0</volume><issue>4</issue><fpage>238</fpage><lpage>244</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лукин Н.Д., Папахин А.А., Бородина З.М., Гулакова В.А., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Лукин Н.Д., Папахин А.А., Бородина З.М., Гулакова В.А.</copyright-holder><copyright-holder xml:lang="en">Lukin N.D., Papakhin A.A., Borodina Z.M., Gulakova V.A.</copyright-holder><license 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/1221">https://www.vestnik-vsuet.ru/vguit/article/view/1221</self-uri><abstract><p>Целью данной работы было исследование действия глюкоамилазы в процессе биоконверсии нативного крахмала в композиции с амилолитическими ферментами, оказывающими положительное влияние при биоконверсии предварительно клейстеризованного крахмала. Установлено, что при использовании в качестве катализатора процесса композиции глюкоамилазы с термостабильной бактериальной α-амилазой, в отличие от клейстеризованного крахмала, не наблюдается положительного эффекта. Выявлено позитивное влияние на процесс композиции глюкоамилазы (Asp. niger) с пуллуланазой (Bac. licheniformis) при дозировке последней 0,4–0,5 ед. ASPU/г СВ крахмала. В ходе исследований установлено, что оптимальная величина рН реакционной среды для композиции ферментов так же, как и для глюкоамилазы при действии на нативный крахмал, находится в пределах 3,0–3,5, в отличие от 4,0–4,5 для клейстеризованного крахмала.</p><p>Результаты исследований показали, что снижение оптимума рН для действия глюкоамилазы в процессе биоконверсии нативного крахмала до 3,3–3,5 может быть обусловлено синергетическим действием НCl и глюкоамилазы. Пуллуланаза (Bac. licheniformis) при самостоятельном действии на нативный крахмал сохраняет оптимум рН (4,2) для клейстеризованного крахмала, при снижении рН частично инактивируется. При дозировке 10 ед. ASPU/г СВ крахмала в заданных условиях пуллуланаза расщепляет не более 1% СВ крахмала с образованием глюкозы (~ 45%), мальтозы (~ 13%), мальтотриозы (~ 12%) и ВМС (~ 30%), что свидетельствует о способности испытуемой пуллуланазы, помимо α-1,6-гликозидных связей, расщеплять в крахмале и α-1,4 связи. На основании полученных данных установлено, что использование композиции глюкоамилазы с α-амилазой и/или пуллуланазой для низкотемпературной биоконверсии нативного крахмала неэффективно, в отличие от клейстеризованного крахмала.</p></abstract><trans-abstract xml:lang="en"><p>The aim of this work was to study the action of glucoamylase in the process of bioconversion of native starch in combination with amilolytic enzymes, that have a positive effect on the bioconversion of the pre-gelatinized starch. It was found that the use a composition of thermostable bacterial glucoamylase with α-amylase as catalyst, in contrast to the gelatinized starch, a positive effect is not observed. It was revealed a positive impact of composition the glucoamylase (Asp. niger) and pullulanase (Bac. licheniformis) with the dose of 0.4–0.5 units of ASPU/g DS of starch on the process. The studies revealed that the optimum рН of the reaction medium for the enzyme composition as well as of for glucoamylase at the action on native starch is in the range of 3.0–3.5, in contrast to the 4.0 to 4.5 for gelatinized starch.</p><p>The results showed that the optimum рН decrease for the action of glucoamylase in the process of bioconversion of native starch to 3.3 and 3.5 may be due to the synergistic action of glucoamylase and НСl. Pullulanase (Bac. licheniformis) retains the optimum рН (4,2) for gelatinized starch at independent action on native starch is partially inactivated while lowering рН. At a dose of 10 ASPU/g DS of starch under specified conditions pullulanase cleaves not more than 1% DS of starch at forming glucose (~ 45%), maltose (~ 13%), maltotriose (~ 12%) and HMS (~ 30%). That indicates to the ability of the test pullulanase in addition to the α-1,6-glycosidic linkages to break down starch and α-1,4 links. On the basis of the obtained data it is revealed that the use of the glucoamylase composition with α-amylase and/or pullulanase for low-temperature bioconversion of native starch, unlike gelatinized is ineffective.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>низкотемпературная биоконверсия</kwd><kwd>нативный крахмал</kwd><kwd>синергетическое действие</kwd><kwd>композиция амилолитических ферментов</kwd><kwd>глюкоамилаза</kwd></kwd-group><kwd-group xml:lang="en"><kwd>low temperature bioconversion</kwd><kwd>native starch</kwd><kwd>synergistic effect</kwd><kwd>composition of amylolytic enzymes</kwd><kwd>glucoamylase</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">Лукин Н.Д., Бородина З.М., Лапидус Т.В., Маннова И.Г. и др. 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