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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Vestnik of the Far East Branch of the Russian Academy of Sciences</journal-id><journal-title-group><journal-title xml:lang="en">Vestnik of the Far East Branch of the Russian Academy of Sciences</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Дальневосточного отделения Российской академии наук</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0869-7698</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">687322</article-id><article-id pub-id-type="doi">10.31857/S0869769825020101</article-id><article-id pub-id-type="edn">GEGBFE</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Biological Sciences</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Биологические науки</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The influence of the spectral composition of artificial lighting on the biochemical composition of tomato fruits <italic>Solanum lycopersicum</italic> L.</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние спектрального состава искусственного освещения на биохимический состав плодов томатов <italic>Solanum lycopersicum</italic> L.</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1065-1814</contrib-id><name-alternatives><name xml:lang="en"><surname>Knyazeva</surname><given-names>Inna V.</given-names></name><name xml:lang="ru"><surname>Князева</surname><given-names>Инна Валерьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Candidate of Sciences in Biology, Senior Researcher</p></bio><bio xml:lang="ru"><p>Кандидат биологических наук, старший научный сотрудник</p></bio><email>knyazewa.inna@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9236-2281</contrib-id><name-alternatives><name xml:lang="en"><surname>Smirnov</surname><given-names>Alexander A.</given-names></name><name xml:lang="ru"><surname>Смирнов</surname><given-names>Александр Анатольевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Candidate of Sciences in Technique, Senior Researcher</p></bio><bio xml:lang="ru"><p>Кандидат технических наук, старший научный сотрудник</p></bio><email>alexander8484@inbox.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal Scientific Agroengineering Center VIM</institution></aff><aff><institution xml:lang="ru">Федеральный научный агроинженерный центр ВИМ</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-08-04" publication-format="electronic"><day>04</day><month>08</month><year>2025</year></pub-date><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>138</fpage><lpage>144</lpage><history><date date-type="received" iso-8601-date="2025-07-11"><day>11</day><month>07</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-07-11"><day>11</day><month>07</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0869-7698/article/view/687322">https://journals.eco-vector.com/0869-7698/article/view/687322</self-uri><abstract xml:lang="en"><p>Light is an important environmental factor that regulates the accumulation of micro- and macroelements and organic acids in tomato fruits. The use of LEDs for lighting during the growth and development of tomatoes is an effective method for improving the quality of tomato fruits. In this study, LED light sources with a combined spectral composition and high-pressure discharge lamps were used to grow tomatoes in a climate chamber. Using capillary electrophoresis, the mass fractions of cations (ammonium, potassium, sodium, magnesium and calcium ions), anions (chloride, nitrate, sulfate and phosphate ions) and organic acids were determined. It has been established that the type of light sources and the spectral composition of optical radiation are one of the key factors in improving the quality of tomatoes. When grown under LEDs, the concentration of malic acid in tomato fruits increased by 60%, succinic acid by 2 times, and magnesium by 14% and calcium by 57% compared to the fruits of tomato plants grown under gas-discharge lamps. Thus, by selecting the spectral composition of optical radiation, it is potentially possible to increase the content of target components and improve the taste of tomatoes.</p></abstract><trans-abstract xml:lang="ru"><p>Свет является важным фактором окружающей среды, который регулирует накопление микро- и макроэлементов и органических кислот в плодах томата. Применение светодиодов для освещения в процессе роста и развития томатов является эффективным методом улучшения качества плодов томатов. В этом исследовании использовались светодиодные источники света с комбинированным спектральным составом и газоразрядные лампы высокого давления при выращивании томатов в климатической камере. Методом капиллярного электрофореза определены массовые доли катионов (ионов аммония, калия, натрия, магния и кальция), анионов (хлорид-, нитрат-, сульфат- и фосфат-ионов) и органических кислот. Установлено, что тип источников света и спектральный состав оптического излучения освещения являются одними из ключевых факторов повышения качества томатов. При выращивании под светодиодами в плодах томата увеличивалась концентрация яблочной кислоты на 60%, янтарной кислоты – в 2 раза, магния – на 14% и кальция – на 57% по сравнению с плодами растений томата, выращенных под газоразрядными лампами. Таким образом, подбирая спектральный состав оптического излучения, потенциально можно увеличить содержание целевых компонентов и улучшить вкусовые качества томатов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>tomato</kwd><kwd>LED</kwd><kwd>biochemical composition</kwd><kwd>light culture</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>томат</kwd><kwd>светодиод</kwd><kwd>биохимический состав</kwd><kwd>светокультура</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Правительство РФ</institution></institution-wrap><institution-wrap><institution xml:lang="en">Government of the Russian Federation</institution></institution-wrap></funding-source><award-id>122022100140-3</award-id></award-group></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Butov I.S. 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