<?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">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">10.20914/2310-1202-2025-2-198-203</article-id><article-id custom-type="elpub" pub-id-type="custom">vguit-3654</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>Разработка антимикробных упаковочных материалов с использованием эфирного масла розмарина</article-title><trans-title-group xml:lang="en"><trans-title>Development of antimicrobial packaging materials using rosemary essential oil</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0871-787X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мелесс</surname><given-names>Эмиру Иднекашоу</given-names></name><name name-style="western" xml:lang="en"><surname>Melesse</surname><given-names>Emiru Yidnekachew</given-names></name></name-alternatives><email xlink:type="simple">emydms12@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/0000-0002-9518-7781</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Альхаир</surname><given-names>Али Якубович</given-names></name><name name-style="western" xml:lang="en"><surname>Аlkhаir</surname><given-names>Ali Y.</given-names></name></name-alternatives><email xlink:type="simple">alkheerali@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/0009-0008-3834-0904</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щукина</surname><given-names>Екатерина Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Shchukina</surname><given-names>E. A.</given-names></name></name-alternatives><email xlink:type="simple">katya_shchukina2003@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/0000-0003-3370-4226</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кирш</surname><given-names>Ирина Анатольевна</given-names></name><name name-style="western" xml:lang="en"><surname>Kirsh</surname><given-names>I. A.</given-names></name></name-alternatives><email xlink:type="simple">Irina-kirsh@yandex.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/0009-0001-7822-7577</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайцева</surname><given-names>Анна Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Zaitseva</surname><given-names>A. V.</given-names></name></name-alternatives><email xlink:type="simple">fairy.tail.1872@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>РОСБИОТЕХ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Biotechnological University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>05</month><year>2025</year></pub-date><volume>87</volume><issue>2</issue><fpage>198</fpage><lpage>203</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мелесс Э.И., Альхаир А.Я., Щукина Е.А., Кирш И.А., Зайцева А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Мелесс Э.И., Альхаир А.Я., Щукина Е.А., Кирш И.А., Зайцева А.В.</copyright-holder><copyright-holder xml:lang="en">Melesse E.Y., Аlkhаir A.Y., Shchukina E.A., Kirsh I.A., Zaitseva A.V.</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/3654">https://www.vestnik-vsuet.ru/vguit/article/view/3654</self-uri><abstract><p>В условиях растущих требований к безопасности и качеству пищевых продуктов особую актуальность приобретает разработка эффективных методов защиты от микробного загрязнения. Одним из инновационных решений является активная упаковка с натуральными антимикробными добавками, препятствующими размножению микроорганизмов на поверхности продуктов. Такие добавки должны сохранять свои свойства как в процессе производства, так и при последующем использовании. Основная цель данного исследования заключалась в разработке активной упаковочной плёнки на основе биополимера с внедрением эфирного масла розмарина в различных концентрациях, а также в определении антимикробных, физико-механических и барьерных свойств полученного полимерного материала. Плёнку на основе крахмала получали методом механического перемешивания исходных реагентов с введением эфирного масла розмарина в концентрациях 0,5 %; 1 %; 3 %; 5 %. Антимикробные свойства полимерного упаковочного материала определяли методом диско-диффузии в соответствии с МУК 4.2.1890–04 в отношении Bacillus subtilis, Escherichia coli, Candida albicans. Для оценки устойчивости материалов к воздействию грибов были выбраны методы ГОСТ 9.049 (метод 1) и ГОСТ 9.048 (метод 4). Определение паропроницаемости проводили на приборе «PERME W3/030» согласно ГОСТ GВ1037. Определение физико-механических свойств осуществляли на разрывной машине по ГОСТ 28840–90. Результаты исследования показали, что образцы упаковочной плёнки на основе крахмала с эфирным маслом розмарина обладают антимикробной активностью в отношении Candida albicans при концентрациях 3 % и 5 %, что выражается в снижении количества микроорганизмов на поверхности плёнки. Кроме того, улучшаются её физико-механические и барьерные свойства. Анализ существующих исследований показал, что эфирное масло розмарина является эффективным природным антимикробным компонентом. Его применение в активной упаковке на основе крахмала не только препятствует росту таких микроорганизмов, как Candida albicans, но и способствует улучшению физико-механических и барьерных свойств упаковочной плёнки. Это делает его перспективным решением для обеспечения безопасности и качества пищевых продуктов.</p></abstract><trans-abstract xml:lang="en"><p>In the context of increasing requirements for food safety and quality, it is important to develop effective methods of protection against microbial contamination. One of the innovative solutions is active packaging with natural antimicrobial additives that prevent the growth of microorganisms on the surface of products. These additives must retain their properties both during production and during further use. The main objective of this study was development of an active packaging film made of biopolymer with the introduction of rosemary essential oil in various concentrations, as well as determination of the antimicrobial, physical, mechanical and barrier properties of the resulting polymer material. The starch-based film was prepared by mechanical mixing of the initial reagents with the introduction of rosemary essential oil with a concentration of 0.5%; 1%; 3%; 5%. The antimicrobial properties of the polymer packaging material were determined by the disk-diffusion method in accordance with MUK 4.2.1890–04 in relation to Bacillus subtilis, Escherichia coli, Candida albicans, and Aspergillus niger. To assess the fungal resistance of the materials, the methods of GOST 9.049 (method 1) and GOST 9.048 (method 4) were selected. Determination of vapor permeability using the "PERME W3/030" device according to GOST GВ1037. The method for determining the physical and mechanical properties on a tensile testing machine according to GOST 28840–90. It was found that samples of packaging film based on starch with rosemary essential oil have antimicrobial activity against Candida albicans at concentrations of 3% and 5%, reducing the number of microorganisms on the film surface. In addition, its physical, mechanical and barrier properties are improved. Analysis of existing studies has shown that rosemary essential oil is an effective natural antimicrobial component. Its use in active starch-based packaging not only prevents the growth of microorganisms such as Candida albicans, but also helps improve the physical, mechanical and barrier properties of the packaging film. This makes it a promising solution for ensuring the safety and quality of food products.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>эфирное масло розмарина</kwd><kwd>антимикробные свойства</kwd><kwd>активная упаковка</kwd><kwd>плёнка на основе крахмала</kwd><kwd>физико-механические свойства</kwd><kwd>барьерные свойства</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rosemary essential oil</kwd><kwd>antimicrobial properties</kwd><kwd>active packaging</kwd><kwd>starch-based film</kwd><kwd>physical and mechanical properties</kwd><kwd>barrier properties</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">Quintavall S. Antimicrobial food packaging in meat industry / S. Quintavall, L. Vicini // Meat Science. – 2002. – Vol. 62, № 3. – P. 373–380. DOI: 10.1016/S0309-1740(02)00121-3.</mixed-citation><mixed-citation xml:lang="en">1 Quintavall S., Vicini L. Antimicrobial food packaging in meat industry. Meat Science. 2002. vol. 62. no. 3. pp. 373–380. doi: 10.1016/S0309-1740(02)00121-3</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Tveritnikova I.S. Research of multilayer polymer films modified with an antimicrobial component intended for packaging dairy products / I.S. Tveritnikova [et al.] // – 2020. – No. 12.</mixed-citation><mixed-citation xml:lang="en">2 Tveritnikova I.S. et al. Research of multilayer polymer films modified with an antimicrobial component intended for packaging dairy products. 2020. no. 12. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Shmakova N.S. The Effect of Ultrasound on the Production of Polyethylene Films with Antimicrobial Properties: Dissertation. ... Candidate of Technical Sciences / N.S. Shmakova. – Moscow, 2020. – 23</mixed-citation><mixed-citation xml:lang="en">3 Shmakova N.S. The Effect of Ultrasound on the Production of Polyethylene Films with Antimicrobial Properties: Dissertation… Candidate of Technical Sciences. Moscow, 2020. 23 p. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Alhajr A. Development of an active starch-based packaging material using clove oil extract as an antimicrobial additive / A. Alhajr [et al.] // Storage and Processing of Agricultural Products. – 2023. – No. 4. – Pp. 16–31. DOI: 10.36107/spfp.2023.4.474.</mixed-citation><mixed-citation xml:lang="en">4 Alhajr A. et al. Development of an active starch-based packaging material using clove oil extract as an antimicrobial additive. Storage and Processing of Agricultural Products. 2023. no. 4. pp. 16–31. doi: 10.36107/spfp.2023.4.474</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Mohsenabadi N. Physical and antimicrobial properties of starch-carboxymethylcellulose film containing rosemary essential oils encapsulated in chitosan nanogel / N. Mohsenabadi [et al.] // International Journal of Biological Macromolecules. – 2018. – Vol. 112. – P. 148–155. DOI: 10.1016/j.ijbiomac.2018.01.034.</mixed-citation><mixed-citation xml:lang="en">5 Mohsenabadi N. et al. Physical and antimicrobial properties of starch-carboxymethylcellulose film containing rosemary essential oils encapsulated in chitosan nanogel. International Journal of Biological Macromolecules. 2018. vol. 112. pp. 148–155. doi: 10.1016/j.ijbiomac.2018.01.034</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Borisova, A.V. Development of Active Biodegradable Packaging Films with Essential Oils / A.V. Borisova, P.V. Shabanova // Materials of the Baltic Sea Forum Conference, Kaliningrad, September 26 – October 1, 2022. – UDC 665.52/.545.</mixed-citation><mixed-citation xml:lang="en">6 Borisova A.V., Shabanova P.V. Development of Active Biodegradable Packaging Films with Essential Oils. Materials of the Baltic Sea Forum Conference, Kaliningrad, September 26 – October 1, 2022. UDC 665.52/.545. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Nieto G. Antioxidant and antimicrobial properties of rosemary (Rosmarinus officinalis, L.): A review / G. Nieto, G. Ros, J. Castillo // Medicines. – 2018. – Vol. 5, № 3. – P. 98. DOI: 10.3390/medicines5030098.</mixed-citation><mixed-citation xml:lang="en">7 Nieto G., Ros G., Castillo J. Antioxidant and antimicrobial properties of rosemary (Rosmarinus officinalis, L.): A review. Medicines. 2018. vol. 5. no. 3. p. 98. doi: 10.3390/medicines5030098</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Habtemariam S. The therapeutic potential of rosemary (Rosmarinus officinalis) diterpenes for Alzheimer’s disease / S. Habtemariam // Evidence-Based Complementary and Alternative Medicine. – 2016. – P. 2680409. DOI: 10.1155/2016/2680409.</mixed-citation><mixed-citation xml:lang="en">8 Habtemariam S. The therapeutic potential of rosemary (Rosmarinus officinalis) diterpenes for Alzheimer's disease. Evidence-Based Complementary and Alternative Medicine. 2016. p. 2680409. doi: 10.1155/2016/2680409</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Kayashima T. Antiangiogenic effect of carnosic acid and carnosol, neuroprotective compounds in rosemary leaves / T. Kayashima, K. Matsubara // Biosci. Biotechnol. Biochem. – 2012. – Vol. 76. – P. 115–119. DOI: 10.1271/bbb.110584.</mixed-citation><mixed-citation xml:lang="en">9 Kayashima T., Matsubara K. Antiangiogenic effect of carnosic acid and carnosol, neuroprotective compounds in rosemary leaves. Bioscience, Biotechnology, and Biochemistry. 2012. vol. 76. pp. 115–119. doi: 10.1271/bbb.110584</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Jiang Y. Chemical composition and antimicrobial activity of the essential oil of Rosemary / Y. Jiang [et al.] // Environmental Toxicology and Pharmacology. – 2011. – Vol. 32, № 1. – P. 63–68. DOI: 10.1016/j.etap.2011.03.011.</mixed-citation><mixed-citation xml:lang="en">10 Elyemni M. et al. Chemical composition and antimicrobial activity of essential oil of wild and cultivated Rosmarinus officinalis from two Moroccan localities. Journal of Ecological Engineering. 2022. vol. 23. no. 3. pp. 214–222. doi: 10.12911/22998993/146145</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Burt S. Essential oils: Their antibacterial properties and potential applications in foods—A review / S. Burt // International Journal of Food Microbiology. – 2004. – Vol. 94. – P. 223–253. DOI: 10.1016/j.ijfoodmicro.2004.03.022.</mixed-citation><mixed-citation xml:lang="en">11 Angane M. et al. Essential oils and their major components: An updated review on antimicrobial activities, mechanism of action and their potential application in the food industry. Foods. 2022. vol. 11. no. 3. p. 464. doi: 10.3390/foods11030464</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Fernández-López J. Antioxidant and antibacterial activities of natural extracts: Application in beef / J. Fernández-López [et al.] // Meat Science. – 2003. – Vol. 66, № 3. – P. 727–733.</mixed-citation><mixed-citation xml:lang="en">12 Efenberger-Szmechtyk M., Nowak A., Czyzowska A. Plant extracts rich in polyphenols: Antibacterial agents and natural preservatives for meat and meat products. Critical reviews in food science and nutrition. 2021. vol. 61. no. 1. pp. 149–178. doi: 10.1080/10408398.2020.1722060</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Ahn J. Effects of plant extracts on microbial growth, color change and lipid oxidation in cooked beef / J. Ahn, I.U. Grün, A. Mustapha // Food Microbiology. – 2007. – Vol. 24. – P. 7–14. DOI: 10.1016/j.fm.2006.04.006.</mixed-citation><mixed-citation xml:lang="en">13 Woo S.H. et al. Inhibitory effect of natural extract mixtures on microbial growth and lipid oxidation of sausages during storage. Journal of Animal Science and Technology. 2023. vol. 65. no. 1. p. 225. doi: 10.5187/jast.2022.e92</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Pandit V.A. Sensitivity of Listeria monocytogenes to rosemary (Rosmarinus officinalis L.) / V.A. Pandit, L.A. Shelef // Food Microbiology. – 1994. – Vol. 11. – P. 57–63. DOI: 10.1006/fmic.1994.1008.</mixed-citation><mixed-citation xml:lang="en">14 Saraiva C. et al. Antimicrobial activity of Myrtus communis L. and Rosmarinus officinalis L. essential oils against Listeria monocytogenes in cheese. Foods. 2021. vol. 10. no. 5. p. 1106. doi: 10.3390/foods10051106</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Fung D.Y.C. Effect of butylated hydroxyanisole (BHA) and buthylated hydroxytoluene (BHT) on growth and aflatoxin production of Aspergillus flavus / D.Y.C. Fung, S. Taylor, J. Kahan // Journal of Food Safety. – 1977. – Vol. 1. – P. 39–51. DOI: 10.1111/j.1745-4565.1977.tb00258.x.</mixed-citation><mixed-citation xml:lang="en">15 Fung D.Y.C., Taylor S., Kahan J. Effect of butylated hydroxyanisole (BHA) and buthylated hydroxytoluene (BHT) on growth and aflatoxin production of Aspergillus flavus. Journal of Food Safety. 1977. vol. 1. pp. 39–51. doi: 10.1111/j.1745-4565.1977.tb00258.x</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Vegara S. Bactericidal activities against pathogenic bacteria by selected constituents of plant extracts in carrot broth / S. Vegara [et al.] // Food Chemistry. – 2011. – Vol. 128. – P. 872–877. DOI: 10.1016/j.foodchem.2011.03.109.</mixed-citation><mixed-citation xml:lang="en">16 Fareed N., Nisa S., Bibi Y. et al. Green synthesized silver nanoparticles using carrot extract exhibited strong antibacterial activity against multidrug resistant bacteria. Journal of King Saud University-Science. 2023. vol. 35. no. 2. p. 102477. doi: 10.1016/j.jksus.2022.102477</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Sirocchi V. Biogenic amines as freshness index of meat wrapped in a new active packaging system formulated with essential oils of Rosmarinus officinalis / V. Sirocchi [et al.] // International Journal of Food Sciences and Nutrition. – 2013. – Vol. 64. – P. 921–928. DOI: 10.3109/09637486.2013.809706.</mixed-citation><mixed-citation xml:lang="en">17 Kaur R. et al. The potential of rosemary as a functional ingredient for meat products-a review. Food Reviews International. 2023. vol. 39. no. 4. pp. 2212–2232. doi: 10.1080/87559129.2021.1950173</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Aguilar F. Use of rosemary extracts as a food additive – scientific opinion of the panel on food additives, flavorings, processing aids and materials in contact with food / F. Aguilar [et al.] // EFSA Journal. – 2008. – Vol. 721. – P. 1–29.</mixed-citation><mixed-citation xml:lang="en">18 Aguilar F. et al. Use of rosemary extracts as a food additive – scientific opinion of the panel on food additives, flavorings, processing aids and materials in contact with food. EFSA Journal. 2008. vol. 721. pp. 1–29. doi: 10.2903/j.efsa.2008.721</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">19 El Boukhari R., Fatimi A. Extract of rosemary as food additive: the landmark patents. Biology and Life Sciences Forum. MDPI, 2023. vol. 26. no. 1. p. 37. doi: 10.3390/Foods2023-15062</mixed-citation><mixed-citation xml:lang="en">19 El Boukhari R., Fatimi A. Extract of rosemary as food additive: the landmark patents. Biology and Life Sciences Forum. MDPI, 2023. vol. 26. no. 1. p. 37. doi: 10.3390/Foods2023-15062</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">20 Qiu K., Wang S., Duan F. et al. Rosemary: Unrevealing an old aromatic crop as a new source of promising functional food additive—A review. Comprehensive Reviews in Food Science and Food Safety. 2024. vol. 23. no. 1. p. e13273. doi: 10.1111/1541-4337.13273</mixed-citation><mixed-citation xml:lang="en">20 Qiu K., Wang S., Duan F. et al. Rosemary: Unrevealing an old aromatic crop as a new source of promising functional food additive—A review. Comprehensive Reviews in Food Science and Food Safety. 2024. vol. 23. no. 1. p. e13273. doi: 10.1111/1541-4337.13273</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru"></mixed-citation><mixed-citation xml:lang="en"></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>
