<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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/achb.948</article-id><article-id custom-type="edn" pub-id-type="custom">QWSTSZ</article-id><article-id custom-type="elpub" pub-id-type="custom">vuzbiochemi-1340</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>Исследование продуктивности и свойств штамма Weizmannia coagulans, способного синтезировать L-молочную кислоту</article-title><trans-title-group xml:lang="en"><trans-title>Productivity and properties of a Weizmannia coagulans strain capable of synthesizing L-lactic acid</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2626-893X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ертилецкая</surname><given-names>Н. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Ertiletskaya</surname><given-names>N. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ертилецкая Наталья Леонидовна, младший научный сотрудник</p><p>660037, г. Красноярск, Проспект имени газеты «Красноярский рабочий», 31</p></bio><bio xml:lang="en"><p>Natalya L. Ertiletskaya, Junior Researcher</p><p>31, Gazeta Krasnoyarskii Rabochii Ave., Krasnoyarsk, 660037</p></bio><email xlink:type="simple">natalya.ertiletskaya@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5830-1450</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суханова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhanova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Суханова Анна Алексеевна, к.б.н., старший научный сотрудник, начальник отдела биоразлагаемых полимерных материалов</p><p>660037, г. Красноярск, Проспект имени газеты «Красноярский рабочий», 31</p></bio><bio xml:lang="en"><p>Anna A. Sukhanova, Cand. Sci. (Biology), Senior Researcher, Head of the Department of Biodegrdadable Polymer Materials</p><p>31, Gazeta Krasnoyarskii Rabochii Ave., Krasnoyarsk, 660037</p></bio><email xlink:type="simple">shumilova.ann@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9190-2792</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бояндин</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Boyandin</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бояндин Анатолий Николаевич, к.б.н., старший научный сотрудник</p><p>660037, г. Красноярск, Проспект имени газеты «Красноярский рабочий», 31</p></bio><bio xml:lang="en"><p>Anatoly N. Boyandin, Cand. Sci. (Biology), Senior Researcher</p><p>31, Gazeta Krasnoyarskii Rabochii Ave., Krasnoyarsk, 660037</p></bio><email xlink:type="simple">boyandin@biopolymer.pro</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-1891-4846</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Середа</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sereda</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Середа Анна Алексеевна, младший научный сотрудник</p><p>660037, г. Красноярск, Проспект имени газеты «Красноярский рабочий», 31</p></bio><bio xml:lang="en"><p>Anna A. Sereda, Junior Researcher</p><p>31, Gazeta Krasnoyarskii Rabochii Ave., Krasnoyarsk, 660037</p></bio><email xlink:type="simple">nensi.sereda@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-6308-0031</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сырцов</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Syrtsov</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сырцов Сергей Николаевич, научный сотрудник</p><p>660037, г. Красноярск, Проспект имени газеты «Красноярский рабочий», 31</p></bio><bio xml:lang="en"><p>Sergei N. Syrtsov, Researcher</p><p>31, Gazeta Krasnoyarskii Rabochii Ave., Krasnoyarsk, 660037</p></bio><email xlink:type="simple">kaideil@list.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-4653-0319</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Прокопчук</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Prokopchuk</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Прокопчук Юлия Александровна, лаборант-исследователь</p><p>660037, г. Красноярск, Проспект имени газеты «Красноярский рабочий», 31</p></bio><bio xml:lang="en"><p>Yulia A. Prokopchuk, Laboratory Assistant</p><p>31, Gazeta Krasnoyarskii Rabochii Ave., Krasnoyarsk, 660037</p></bio><email xlink:type="simple">batori_bloody@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный университет науки и технологий им. М.Ф. Решетнёва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Reshetnev Siberian State University of Science and Technology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>13</day><month>01</month><year>2025</year></pub-date><volume>14</volume><issue>4</issue><fpage>525</fpage><lpage>536</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ертилецкая Н.Л., Суханова А.А., Бояндин А.Н., Середа А.А., Сырцов С.Н., Прокопчук Ю.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ертилецкая Н.Л., Суханова А.А., Бояндин А.Н., Середа А.А., Сырцов С.Н., Прокопчук Ю.А.</copyright-holder><copyright-holder xml:lang="en">Ertiletskaya N.L., Sukhanova A.A., Boyandin A.N., Sereda A.A., Syrtsov S.N., Prokopchuk Y.A.</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/1340">https://vuzbiochemi.elpub.ru/jour/article/view/1340</self-uri><abstract><p>Исследования продуцентов L-молочной кислоты на сегодняшний день представляются весьма актуальными в связи с широкими сферами ее применения. Целью проведенного исследования являлся подбор параметров культивирования термофильного штамма-продуцента L-молочной кислоты Weizmannia coagulans, выделенного из молока. В ходе работы выявлено, что продуктивность штамма зависит от температуры культивирования, скорости перемешивания, рН среды, использованного нейтрализующего агента и концентрации глюкозы. По результатам культивирования в колбах и ферментере установлено, что за 56 часов штамм способен продуцировать до 80,4 г/л молочной кислоты при соответствующей средней продуктивности 1,44 г/(л×ч) с конверсией порядка 99%. Самыми оптимальными параметрами для получения наибольших показателей были температура 50 °С, рН среды 6,5, перемешивание 150 об/мин. Показано, что данный штамм не ингибируется высокими концентрациями глюкозы, а, напротив, демонстрирует большую продуктивность при концентрации глюкозы в среде 100–120 г/л. Среди нейтрализующих агентов, используемых для корректировки рН, выбран Са(ОН)2, который в наименьшей степени влияет на размер клеток продуцента в процессе ферментации и побочные продукты использования которого наименее токсичны. Полученные результаты показывают, что данный штамм требует дальнейших исследований его особенностей метаболизма и генетической модификации для повышения продуктивности, снижения ингибирующего эффекта целевого продукта на метаболизм продуцента и получения повышенных титров молочной кислоты за короткое время ферментации.</p></abstract><trans-abstract xml:lang="en"><p>Studies on the producers of L-lactic acid are highly relevant at the moment due to the broad scope of its applications. This study was aimed at selecting culture parameters for a milk-derived thermophilic strain of Weizmannia coagulans that is capable of producing L-lactic acid. It was found that the strain productivity depends on the culture temperature, stirring rate, medium pH, used neutralizing agent, and glucose concentration. The culture in flasks and a fermenter revealed that in 56 hours, the strain is capable of producing up to 80.4 g/L of lactic acid at a corresponding average productivity of 1.44 g/(L×h) with a conversion of about 99%. The most optimal parameters to achieve the highest indicators were a temperature of 50 °С, medium pH of 6.5, and a stirring rate of 150 rpm. This strain was shown to be uninhibited by high glucose concentrations; conversely, it exhibited higher productivity at glucose concentrations of 100–120 g/L in the medium. Among the neutralizing agents used for pH adjustment, the Ca(OH)2 agent was selected, which has the least effect on the size of producer cells during fermentation and whose by-products are the least toxic. The obtained results indicate that further studies on the metabolic properties and genetic modification of this strain are required in order to increase productivity, reduce the inhibitory effect of the target product on the metabolism of the producer, and obtain elevated lactic acid titers in a short fermentation time.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Weizmannia coagulans</kwd><kwd>молочнокислое брожение</kwd><kwd>L-молочная кислота</kwd><kwd>периодическое культивирование</kwd><kwd>биотехнологическое получение органических кислот</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Weizmannia coagulans</kwd><kwd>lactic acid fermentation</kwd><kwd>L-lactic acid</kwd><kwd>batch culture</kwd><kwd>biotechnological production of organic acids</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование поддержано Министерством науки и высшего образования Российский федерации в рамках госзадания на выполнение исследования по теме «Исследование закономерностей химико-биотехнологического синтеза биоразлагаемых полимеров» (проект № FEFE-2024-0027).</funding-statement><funding-statement xml:lang="en">The Ministry of Science and Higher Education of the Russian Federation supported this study within the state assignment for the implementation of the project “Study of the common principles of chemico-biotechnological synthesis of biodegradable polymers and development of an integrated technology for the production of engi-neering composite materials with controlled biodegradation for industrial use” (project no. FEFE-2024-0027).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Abedi E., Hashemi S.M.B. Lactic acid production – producing microorganisms and substrates sources-state of art // Heliyon. 2020. Vol. 6, no. 10. P. e04974. DOI: 10.1016/j.heliyon.2020.e04974.</mixed-citation><mixed-citation xml:lang="en">Abedi E., Hashemi S.M.B. Lactic acid production – producing microorganisms and substrates sources-state of art. Heliyon. 2020;6(10):e04974. DOI: 10.1016/j.heliyon.2020.e04974.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ojo A.O., de Smidt O. Lactic acid: a comprehensive review of production to purification // Processes. 2023. Vol. 11, no. 3. P. 688. DOI: 10.3390/pr11030688.</mixed-citation><mixed-citation xml:lang="en">Ojo A.O., de Smidt O. Lactic acid: a comprehensive review of production to purification. Processes. 2023;11(3):688. DOI: 10.3390/pr11030688.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Kim J., Kim Y.-M., Lebaka V.R., Wee Y.-J. Lactic acid for green chemical industry: recent advances in and future prospects for production technology, recovery, and applications // Fermentation. 2022. Vol. 8, no. 11. P. 609. DOI: 10.3390/fermentation8110609.</mixed-citation><mixed-citation xml:lang="en">Kim J., Kim Y.-M., Lebaka V.R., Wee Y.-J. Lactic acid for green chemical industry: recent advances in and future prospects for production technology, recovery, and applications. Fermentation. 2022;8(11):609. DOI: 10.3390/fermentation8110609.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Komesu A., Oliveira J.A.R.d., Martins L.H.d.S., Wolf Maciel M.R., Maciel Filho R. Lactic acid production to purification: a review // BioResources. 2017. Vol. 12, no. 2. P. 4364–4383. DOI: 10.15376/biores.12.2.Komesu.</mixed-citation><mixed-citation xml:lang="en">Komesu A., Oliveira J.A.R.d., Martins L.H.d.S., Wolf Maciel M.R., Maciel Filho R. Lactic acid production to purification: a review/ BioResources. 2017;12(2):4364-4383. DOI: 10.15376/biores.12.2.Komesu.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Auras R., Harte B., Selke S. An overview of polylactides as packaging materials // Macromolecular Bioscience. 2004. Vol. 4, no. 9. P. 835–864. DOI: 10.1002/mabi.200400043.</mixed-citation><mixed-citation xml:lang="en">Auras R., Harte B., Selke S. An overview of polylactides as packaging materials. Macromolecular Bioscience. 2004;4(9):835-864. DOI: 10.1002/mabi.200400043.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Tian X., Liu X., Zhang Y., Chen Y., Hang H., Chu J., et al. Metabolic engineering coupled with adaptive evolution strategies for the efficient production of high-quality L-lactic acid by Lactobacillus paracasei // Bioresource Technology. 2021. Vol. 323. P. 124549. DOI: 10.1016/j.biortech.2020.124549.</mixed-citation><mixed-citation xml:lang="en">Tian X., Liu X., Zhang Y., Chen Y., Hang H., Chu J., et al. Metabolic engineering coupled with adaptive evolution strategies for the efficient production of high-quality L-lactic acid by Lactobacillus paracasei. Bioresource Technology. 2021;323:124549. DOI: 10.1016/j.biortech.2020.124549.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Kuo Y.-C., Yuan S.-F., Wang C.-A., Huang Y.-J., Guo G.-L., Hwang W.-S. Production of optically pure L-lactic acid from lignocellulosic hydrolysate by using a newly isolated and D-lactate dehydrogenase gene-deficient Lactobacillus paracasei strain // Bioresource Technology. 2015. Vol. 198. P. 651–657. DOI: 10.1016/j.biortech.2015.09.071.</mixed-citation><mixed-citation xml:lang="en">Kuo Y.-C., Yuan S.-F., Wang C.-A., Huang Y.-J., Guo G.-L., Hwang W.-S. Production of optically pure L-lactic acid from lignocellulosic hydrolysate by using a newly isolated and D-lactate dehydrogenase gene-deficient Lactobacillus paracasei strain. Bioresource Technology. 2015;198:651- 657. DOI: 10.1016/j.biortech.2015.09.071.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Romanova M.V., Dolbunova A.N., Epishkina Y.M., Evdokimova S.A., Kozlovskiy M.R., Kuznetsov A.Y., et al. A thermophilic L-lactic acid producer of high optical purity: isolation and identification // Foods and Raw Materials. 2024. Vol. 12, no. 1. Р. 101–109. DOI: 10.21603/2308-4057-2024-1-591.</mixed-citation><mixed-citation xml:lang="en">Romanova M.V., Dolbunova A.N., Epishkina Y.M., Evdokimova S.A., Kozlovskiy M.R., Kuznetsov A.Y., et al. A thermophilic L-lactic acid producer of high optical purity: isolation and identification. Foods and Raw Materials. 2024;12(1):101- 109. DOI: 10.21603/2308-4057-2024-1-591.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Okano K., Uematsu G., Hama S., Tanaka T., Noda H., Kondo A., et al. Metabolic engineering of Lactobacillus plantarum for direct L-lactic Acid production from raw corn starch // Biotechnology Journal. 2018. Vol. 13, no. 5. P. 1700517. DOI: 10.1002/biot.201700517.</mixed-citation><mixed-citation xml:lang="en">Okano K., Uematsu G., Hama S., Tanaka T., Noda H., Kondo A., et al. Metabolic engineering of Lactobacillus plantarum for direct L-lactic Acid production from raw corn starch. Biotechnology Journal. 2018;13(5):1700517. DOI: 10.1002/biot.201700517.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Liu T., Xu X., Liu Y., Li J., Du G., Lv X., et al. Engineered microbial cell factories for sustainable production of L-lactic acid: a critical review // Fermentation. 2022. Vol. 8, no. 6. P. 279. DOI: 10.3390/fermentation8060279.</mixed-citation><mixed-citation xml:lang="en">Liu T., Xu X., Liu Y., Li J., Du G., Lv X., et al. Engineered microbial cell factories for sustainable production of L-lactic acid: a critical review. Fermentation. 2022;8(6):279. DOI: 10.3390/fermentation8060279.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Kwan T.H., Vlysidis A., Wu Z., Hu Y., Koutinas A., Lin C.S.K. Lactic acid fermentation modelling of Streptococcus thermophilus YI-B1 and Lactobacillus casei Shirota using food waste derived media // Biochemical Engineering Journal. 2017. Vol. 127. P. 97–109. DOI: 10.1016/j.bej.2017.08.012.</mixed-citation><mixed-citation xml:lang="en">Kwan T.H., Vlysidis A., Wu Z., Hu Y., Koutinas A., Lin C.S.K. Lactic acid fermentation modelling of Streptococcus thermophilus YI-B1 and Lactobacillus casei Shirota using food waste derived media. Biochemical Engineering Journal. 2017;127:97-109. DOI: 10.1016/j.bej.2017.08.012.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Park I., Kim I., Kang K., Sohn H., Rhee I., Jin I., et al. Cellulose ethanol production from waste newsprint by simultaneous saccharification and fermentation using Saccharomyces cerevisiae KNU5377 // Process Biochemistry. 2010. Vol. 45, no. 4. P. 487–492. DOI: 10.1016/j.procbio.2009.11.006.</mixed-citation><mixed-citation xml:lang="en">Park I., Kim I., Kang K., Sohn H., Rhee I., Jin I., et al. Cellulose ethanol production from waste newsprint by simultaneous saccharification and fermentation using Saccharomyces cerevisiae KNU5377. Process Biochemistry. 2010;45(4):487-492. DOI: 10.1016/j.procbio.2009.11.006.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Gupta R.S., Patel S., Saini N., Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species // International Journal of Systematic and Evolutionary Microbiology. 2020. Vol. 70, no. 11. Р. 5753–5798. DOI: 10.1099/ijsem.0.004475.</mixed-citation><mixed-citation xml:lang="en">Gupta R.S., Patel S., Saini N., Chen S. Robust demarcation of 17 distinct Bacillus species clades, proposed as novel Bacillaceae genera, by phylogenomics and comparative genomic analyses: description of Robertmurraya kyonggiensis sp. nov. and proposal for an emended genus Bacillus limiting it only to the members of the Subtilis and Cereus clades of species. International Journal of Systematic and Evolutionary Microbiology. 2020;70(11):5753-5798. DOI: 10.1099/ijsem.0.004475.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Konuray G., Erginkaya Z. Potential use of Bacillus coagulans in the food industry // Foods. 2018. Vol. 7, no. 6. P. 92. DOI: 10.3390/foods7060092.</mixed-citation><mixed-citation xml:lang="en">Konuray G., Erginkaya Z. Potential use of Bacillus coagulans in the food industry. Foods. 2018;7(6):92. DOI: 10.3390/foods7060092.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">De Clerck E., Rodriguez-Diaz M., Forsyth G., Lebbe L., Logan N.A., De Vos P. Polyphasic characterization of Bacillus coagulans strains, illustrating heterogeneity within this species, and emended description of the species // Systematic and Applied Microbiology. 2004. Vol. 27, no. 1. P. 50–60. DOI: 10.1078/0723-2020-00250.</mixed-citation><mixed-citation xml:lang="en">De Clerck E., Rodriguez-Diaz M., Forsyth G., Lebbe L., Logan N.A., De Vos P. Polyphasic characterization of Bacillus coagulans strains, illustrating heterogeneity within this species, and emended description of the species. Systematic and Applied Microbiology. 2004;27(1):50-60. DOI: 10.1078/0723-2020-00250.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Bischoff K.M., Liu S., Hughes S.R., Rich J.O. Fermentation of corn fiber hydrolysate to lactic acid by the moderate thermophile Bacillus coagulans // Biotechnology Letters. 2010. Vol. 32. P. 823–828. DOI: 10.1007/s10529-010-0222-z.</mixed-citation><mixed-citation xml:lang="en">Bischoff K.M., Liu S., Hughes S.R., Rich J.O. Fermentation of corn fiber hydrolysate to lactic acid by the moderate thermophile Bacillus coagulans. Biotechnology Letters. 2010;32:823-828. DOI: 10.1007/s10529-010-0222-z.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Michelson T., Kask K., Jõgi E., Talpsep E., Suitso I., Nurk A. L(+)-Lactic acid producer Bacillus coagulans SIM-7 DSM 14043 and its comparison with Lactobacillus delbrueckii ssp. lactis DSM 20073 // Enzyme and Microbial Technology. 2006. Vol. 39, no. 4. P. 861–867. DOI: 10.1016/j.enzmictec.2006.01.015.</mixed-citation><mixed-citation xml:lang="en">Michelson T., Kask K., Jõgi E., Talpsep E., Suitso I., Nurk A. L(+)-Lactic acid producer Bacillus coagulans SIM-7 DSM 14043 and its comparison with Lactobacillus delbrueckii ssp. lactis DSM 20073. Enzyme and Microbial Technology. 2006;39(4):861-867. DOI: 10.1016/j.enzmictec.2006.01.015.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Zhou X., Ye L., Wu J.C. Efficient production of L-lactic acid by newly isolated thermophilic Bacillus coagulans WCP10-4 with high glucose tolerance // Applied Microbiology and Biotechnology. 2013. Vol. 97. P. 4309–4314. DOI: 10.1007/s00253-013-4710-7.</mixed-citation><mixed-citation xml:lang="en">Zhou X., Ye L., Wu J.C. Efficient production of L-lactic acid by newly isolated thermophilic Bacillus coagulans WCP10-4 with high glucose tolerance. Applied Microbiology and Biotechnology. 2013;97:4309-4314. DOI: 10.1007/s00253-013-4710-7.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Ye L., Zhou X., Hudari M.S.B., Li Z., Wu J.С. Highly efficient production of L-lactic acid from xylose by newly isolated Bacillus coagulans C106 // Bioresource Technology. 2013. Vol. 132. P. 38–44. DOI: 10.1016/j.biortech.2013.01.011.</mixed-citation><mixed-citation xml:lang="en">Ye L., Zhou X., Hudari M.S.B., Li Z., Wu J.С. Highly efficient production of L-lactic acid from xylose by newly isolated Bacillus coagulans C106. Bioresource Technology. 2013;132:38-44. DOI: 10.1016/j.biortech.2013.01.011.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Maas R.H.W., Bakker R.R., Jansen M.L.A., Visser D., de Jong E., Eggink G., et al. Lactic acid production from lime-treated wheat straw by Bacillus coagulans: neutralization of acid by fed-batch addition of alkaline substrate // Applied Microbiology and Biotechnology. 2008. Vol. 78. P. 751–758. DOI: 10.1007/s00253-008-1361-1.</mixed-citation><mixed-citation xml:lang="en">Maas R.H.W., Bakker R.R., Jansen M.L.A., Visser D., de Jong E., Eggink G., et al. Lactic acid production from lime-treated wheat straw by Bacillus coagulans: neutralization of acid by fed-batch addition of alkaline substrate. Applied Microbiology and Biotechnology. 2008;78:751-758. DOI: 10.1007/s00253-008-1361-1.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Пат. № 2650669, Российская Федерация, C12N 1/19, C12P 7/56, C12R 1/85. Штамм Schizosaccharomyces pombe – продуцент молочной кислоты / Л.Н. Борщевская, Т.Л. Гордеева, М.М. Вустин, М.А. Великая, А.Н. Калинина, С.П. Синеокий. Заявл. 21.12.2016; опубл. 16.04.2018. Бюл. № 11.</mixed-citation><mixed-citation xml:lang="en">Borshchevskaya L.N., Gordeeva T.L., Vustin M.M., Velikaya M.A., Kalinina A.N., Sineokij S.P. Schizosaccharomyces pombe strain – lactic acid producer. Patent RF, no. 2650669; 2018. (In Russian).</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Суханова А.А., Ертилецкая Н.Л., Бояндин А.Н., Сырцов С.Н., Середа А.А., Прокопчук Ю.А. [и др.]. Исследование характеристик роста штаммов-продуцентов молочной кислоты с использованием глюкозного сиропа в качестве источника углерода // Известия вузов. Прикладная химия и биотехнология. 2023. Т. 13. N 2. С. 245–254. DOI: 10.21285/2227-2925-2023-13-2-245-254. EDN: HIUHAE.</mixed-citation><mixed-citation xml:lang="en">Sukhanova A.A., Ertiletskaya N.L., Boyandin A.N., Syrtsov S.N., Sereda A.A., Prokopchuk Yu.A., et al. Growth characteristics of lactic acid-producing strains using glucose syrup as a carbon source. Proceedings of Universities. Applied Chemistry and Biotechnology. 2023;13(2):245- 254. (In Russian). DOI: 10.21285/2227-2925-2023-13-2-245-254. EDN: HIUHAE.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang F., Liu J., Han X., Gao C., Ma C., Tao F., et al. Kinetic characteristics of long-term repeated fed-batch (LtRFb) L-lactic acid fermentation by a Bacillus coagulans strain // Engineering in Life Sciences. 2020. Vol. 20, no. 12. P. 562–570. DOI: 10.1002/elsc.202000043.</mixed-citation><mixed-citation xml:lang="en">Zhang F., Liu J., Han X., Gao C., Ma C., Tao F., et al. Kinetic characteristics of long-term repeated fed-batch (LtRFb) L-lactic acid fermentation by a Bacillus coagulans strain. Engineering in Life Sciences. 2020;20(12):562- 570. DOI: 10.1002/elsc.202000043.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Aragno M. Responses of microorganisms to temperature // Physiological plant ecology I: responses to the physical environment / eds O.L. Lange, P.S. Nobel, C.B. Osmond, H. Ziegler. Berlin – Heidelberg: Springer, 1981. P. 339–369. DOI: 10.1007/978-3-642-68090-8_12.</mixed-citation><mixed-citation xml:lang="en">Aragno M. Responses of microorganisms to temperature. In: Lange O.L., Nobel P.S., Osmond C.B., Ziegler H. (eds). Physiological plant ecology I: responses to the physical environment. Berlin – Heidelberg: Springer; 1981, p. 339-369. DOI: 10.1007/978-3-642-68090-8_12.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Chen Y., Sun Y., Liu Z., Dong F., Li Y., Wang Y. Genomescale modeling for Bacillus coagulans to understand the metabolic characteristics // Biotechnology and Bioengineering. 2020. Vol. 117, no. 11. P. 3545–3558. DOI: 10.1002/bit.27488.</mixed-citation><mixed-citation xml:lang="en">Chen Y., Sun Y., Liu Z., Dong F., Li Y., Wang Y. Genome-scale modeling for Bacillus coagulans to understand the metabolic characteristics. Biotechnology and Bioengineering. 2020;117(11):3545-3558. DOI: 10.1002/bit.27488.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Chen Y., Dong F., Wang Y. Systematic development and optimization of chemically defined medium supporting high cell density growth of Bacillus coagulans // Applied Microbiology and Biotechnology. 2016. Vol. 100. P. 8121– 8134. DOI: 10.1007/s00253-016-7644-z.</mixed-citation><mixed-citation xml:lang="en">Chen Y., Dong F., Wang Y. Systematic development and optimization of chemically defined medium supporting high cell density growth of Bacillus coagulans. Applied Microbiology and Biotechnology. 2016;100:8121-8134. DOI: 10.1007/s00253-016-7644-z.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">De Oliveira R.A., Schneider R., Rossell C.E.V., Filho R.M., Venus J. Polymer grade L-lactic acid production from sugarcane bagasse hemicellulosic hydrolysate using Bacillus coagulans // Bioresource Technology Reports. 2019. Vol. 6. P. 26–31. DOI: 10.1016/j.biteb.2019.02.003.</mixed-citation><mixed-citation xml:lang="en">De Oliveira R.A., Schneider R., Rossell C.E.V., Filho R.M., Venus J. Polymer grade L-lactic acid production from sugarcane bagasse hemicellulosic hydrolysate using Bacillus coagulans. Bioresource Technology Reports. 2019;6:26-31. DOI: 10.1016/j.biteb.2019.02.003.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Abdel-Rahman M.A., Tashiro Y., Sonomoto K. Recent advances in lactic acid production by microbial fermentation processes // Biotechnology Advances. 2013. Vol. 31, no. 6. P. 877–902. DOI: 10.1016/j.biotechadv.2013.04.002.</mixed-citation><mixed-citation xml:lang="en">Abdel-Rahman M.A., Tashiro Y., Sonomoto K. Recent advances in lactic acid production by microbial fermentation processes. Biotechnology Advances. 2013;31(6):877-902. DOI: 10.1016/j.biotechadv.2013.04.002.</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Åkerberg C., Hofvendahl K., Zacchi G., Hahn-Hägerdal B. Modelling the influence of pH, temperature, glucose and lactic acid concentrations on the kinetics of lactic acid production by Lactococcus lactis ssp. lactis ATCC 19435 in whole-wheat flour // Applied Microbiology and Biotechnology. 1998. Vol. 49. P. 682–690. DOI: 10.1007/s002530051232.</mixed-citation><mixed-citation xml:lang="en">Åkerberg C., Hofvendahl K., Zacchi G., Hahn-Hägerdal B. Modelling the influence of pH, temperature, glucose and lactic acid concentrations on the kinetics of lactic acid production by Lactococcus lactis ssp. lactis ATCC 19435 in whole-wheat flour. Applied Microbiology and Biotechnology. 1998. Vol. 49. P. 682–690. DOI: 10.1007/s002530051232.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Lund P.A., De Biase D., Liran O., Scheler O., Mira N.P., Cetecioglu Z., et al. Understanding how microorganisms respond to acid pH is central to their control and successful exploitation // Frontiers in Microbiology. 2020. Vol. 11. P. 556140. DOI: 10.3389/fmicb.2020.556140.</mixed-citation><mixed-citation xml:lang="en">Lund P.A., De Biase D., Liran O., Scheler O., Mira N.P., Cetecioglu Z., et al. Understanding how microorganisms respond to acid pH is central to their control and successful exploitation. Frontiers in Microbiology. 2020;11:556140. DOI: 10.3389/fmicb.2020.556140.</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Juturu V., Wu J.C. Microbial production of lactic acid: the latest development // Critical Reviews in Biotechnology. 2016. Vol. 36, no. 6. P. 967–977. DOI: 10.3109/07388551.2015.1066305.</mixed-citation><mixed-citation xml:lang="en">Juturu V., Wu J.C. Microbial production of lactic acid: the latest development. Critical Reviews in Biotechnology. 2016;36(6):967-977. DOI: 10.3109/07388551.2015.1066305.</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Guan N., Liu L. Microbial response to acid stress: mechanisms and applications // Applied Microbiology and Biotechnology. 2020. Vol. 104. P. 51–65. DOI: 10.1007/s00253-019-10226-1.</mixed-citation><mixed-citation xml:lang="en">Guan N., Liu L. Microbial response to acid stress: mechanisms and applications. Applied Microbiology and Biotechnology. 2020;104:51-65. DOI: 10.1007/s00253-019-10226-1.</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Tian W., Qin J., Lian C., Yao Q., Wang X. Identification of a major facilitator superfamily protein that is beneficial to L-lactic acid production by Bacillus coagulans at low pH // BMC Microbiology. 2022. Vol. 22. P. 310. DOI: 10.1186/s12866-022-02736-2.</mixed-citation><mixed-citation xml:lang="en">Tian W., Qin J., Lian C., Yao Q., Wang X. Identification of a major facilitator superfamily protein that is beneficial to L-lactic acid production by Bacillus coagulans at low pH. BMC Microbiology. 2022;22:310. DOI: 10.1186/s12866-022-02736-2.</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Chen Y., Sun Y., Liu Z., Dong F., Li Y., Wang Y. Genomescale modeling for Bacillus coagulans to understand the metabolic characteristics // Biotechnology and Bioengineering. 2020. Vol. 117, no. 11. P. 3545–3558. DOI: 10.1002/bit.27488.</mixed-citation><mixed-citation xml:lang="en">Chen Y., Sun Y., Liu Z., Dong F., Li Y., Wang Y. Genome-scale modeling for Bacillus coagulans to understand the metabolic characteristics. Biotechnology and Bioengineering. 2020;117(11):3545-3558. DOI: 10.1002/bit.27488.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
