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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Biology Bulletin</journal-id><journal-title-group><journal-title xml:lang="en">Biology Bulletin</journal-title><trans-title-group xml:lang="ru"><trans-title>Известия Российской академии наук. Серия биологическая</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1026-3470</issn><issn publication-format="electronic">3034-5367</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">675031</article-id><article-id pub-id-type="doi">10.31857/S1026347022700068</article-id><article-id pub-id-type="edn">HANYNK</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>МИКРОБИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Physiological and Biochemical Characteristics, and Biotechnological Potential of Hydrolitic Haloalkalitolerant Bacteria of Soda Sludge Storage</article-title><trans-title-group xml:lang="ru"><trans-title>Физиолого-биохимическая характеристика и биотехнологический потенциал гидролитических галоалкалотолерантных бактерий содового шламохранилища</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Maksimova</surname><given-names>Yu. G.</given-names></name><name xml:lang="ru"><surname>Максимова</surname><given-names>Ю. Г.</given-names></name></name-alternatives><email>maks@iegm.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shilova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Шилова</surname><given-names>А. В.</given-names></name></name-alternatives><email>maks@iegm.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Egorova</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Егорова</surname><given-names>В. В.</given-names></name></name-alternatives><email>maks@iegm.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shchetko</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Щетко</surname><given-names>В. А.</given-names></name></name-alternatives><email>maks@iegm.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Maksimov</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Максимов</surname><given-names>А. Ю.</given-names></name></name-alternatives><email>maks@iegm.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of Ecology and Genetics of Microorganisms of the Ural Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт экологии и генетики микроорганизмов УрО РАН –
филиал Пермского федерального исследовательского центра УрО РАН</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Perm State University</institution></aff><aff><institution xml:lang="ru">Пермский государственный национальный исследовательский университет</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Institute of Microbiology of the National Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Государственное научное учреждение Институт микробиологии НАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-01" publication-format="electronic"><day>01</day><month>03</month><year>2023</year></pub-date><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>149</fpage><lpage>159</lpage><history><date date-type="received" iso-8601-date="2025-02-28"><day>28</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Ю.Г. Максимова, А.В. Шилова, В.В. Егорова, В.А. Щетко, А.Ю. Максимов</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Ю.Г. Максимова, А.В. Шилова, В.В. Егорова, В.А. Щетко, А.Ю. Максимов</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Ю.Г. Максимова, А.В. Шилова, В.В. Егорова, В.А. Щетко, А.Ю. Максимов</copyright-holder><copyright-holder xml:lang="ru">Ю.Г. Максимова, А.В. Шилова, В.В. Егорова, В.А. Щетко, А.Ю. Максимов</copyright-holder></permissions><self-uri xlink:href="https://medjrf.com/1026-3470/article/view/675031">https://medjrf.com/1026-3470/article/view/675031</self-uri><abstract xml:lang="en"><p id="idm45181324261872">Peculiarities of manifestation of hydrolytic activity of haloalkalitolerant bacteria <italic>Pseudomonas peli</italic> 3-T, <italic>Microbacterium kitamiense</italic> 16-DB, and <italic>Bacillus aequororis</italic> 5-DB, isolated from the soil of the territory of the soda sludge storage and the soda sludge of the functioning sludge reservoir of Berezniki Soda Plant (Perm Territory, Russia) were studied. It was shown that the maximum activity of extracellular lipases and amylases of the three studied bacteria were manifested at pH 11 and a high concentration of sodium chloride (50–200 g/L). Cultivation of <italic>P. peli</italic> 3-T on a mineral medium with 0.5% glycerol (source of carbon) and 0.03% urea (source of nitrogen) makes it possible to obtain biomass (6.9 g/L) and activity of extracellular lipase (1.26 U/L) and lipase associated with cells (3.02 U/mg dry cells) with a high economic ratio of substrate consumption (138%). The efficiency of immobilization of <italic>P. peli</italic> 3-T and <italic>B. aequororis</italic> 5-DB cells for use in lipid and starch biotransformation was shown. <italic>P. peli</italic> 3-T cells immobilized by adsorption on kaolin and incorporated into the structure of barium alginate and agarose gels retained from 40.4 to 63.8% of the cell lipase activity in suspension. <italic>B. aequororis</italic> 5-DB cells immobilized by adsorption on kaolin retained 42.5% of lipase and 90.7% of amylase activity as compared to the initial ones. At the same time, the activities of the <italic>P. peli</italic> 3-T and <italic>B. aequororis</italic> 5-DB enzymes were preserved during 6 consecutive reactions. The amylase activity of immobilized <italic>M. kitamiense</italic> 16-DB cells by adsorption on kaolin and chitosan decreased to 2.7–3.5% of the initial value and was completely inhibited upon immobilization by cell’s entrapment into barium alginate gels or agarose gels.</p></abstract><trans-abstract xml:lang="ru"><p id="idm45181324258992">Изучены особенности проявления гидролитической активности галоалкалотолерантных бактерий <italic>Pseudomonas peli</italic> 3-Т, <italic>Microbacterium kitamiense</italic> 16-ДБ и <italic>Bacillus aequororis</italic> 5-ДБ, выделенных из грунта территории содового шламохранилища и содового осадка действующего шламонакопителя АО “Березниковский содовый завод” (Пермский край, Россия). Показано, что максимальные активности внеклеточных липаз и амилаз трех исследованных бактерий проявлялись при рН 11 и высокой концентрации хлорида натрия (50–200 г/л). Культивирование <italic>P. peli</italic> 3-Т на минеральной среде с 0.5%-ным глицерином (источник углерода) и 0.03%-ной мочевины (источник азота) позволяет получить биомассу (6.9 г/л) и активность внеклеточной (1.26 Ед/л) и ассоциированной с клетками липазы (3.02 Ед/мг сухих клеток) с высоким экономическим коэффициентом потребления субстрата (138%). Показана эффективность иммобилизации клеток <italic>P. peli</italic> 3-Т и <italic>B. aequororis</italic> 5-ДБ для использования в биотрансформации липидов и крахмала. Клетки <italic>P. peli</italic> 3-Т, иммобилизованные адсорбцией на каолине и включением в структуру гелей альгината бария и агарозы, сохраняли от 40.4 до 63.8% от активности липазы клеток в суспензии. Иммобилизованные адсорбцией на каолине клетки <italic>B. aequororis</italic> 5-ДБ сохраняли 42.5% липазной и 90.7% амилазной активности по сравнению с исходными. При этом активности исследованных ферментов <italic>P. peli</italic> 3-Т и <italic>B. aequororis</italic> 5-ДБ сохранялись в течение 6-ти последовательных реакций. Амилазная активность иммобилизованных клеток <italic>M. kitamiense</italic> 16-ДБ при адсорбции на каолине и хитозане снижалась до 2.7–3.5% от исходной и полностью ингибировалась при иммобилизации включением в гели альгината бария или агарозы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>amylase</kwd><kwd>lipase</kwd><kwd>cultivation</kwd><kwd>immobilization of bacterial cells</kwd><kwd>halotolerant bacteria</kwd><kwd>alkalitolerant bacteria</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>амилаза</kwd><kwd>липаза</kwd><kwd>культивирование</kwd><kwd>иммобилизация бактериальных клеток</kwd><kwd>галотолерантные бактерии</kwd><kwd>алкалотолерантные бактерии</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Безбородов А.М., Загустина Н.А. Липазы в реакциях катализа в органическом синтезе (обзор) // Прикладная биохимия и микробиология. 2014. Т. 50. № 4. 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