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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">Siberian Journal of Life Sciences and Agriculture</journal-id><journal-title-group><journal-title xml:lang="en">Siberian Journal of Life Sciences and Agriculture</journal-title><trans-title-group xml:lang="ru"><trans-title>Siberian Journal of Life Sciences and Agriculture</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-6649</issn><issn publication-format="electronic">2658-6657</issn><publisher><publisher-name xml:lang="en">Science and Innovation Center Publishing House</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">370309</article-id><article-id pub-id-type="doi">10.12731/2658-6649-2025-17-6-2-1552</article-id><article-id pub-id-type="edn">LBTCKO</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">Influence of polishing degree on technological traits of grain of different rice varieties</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние степени шлифования на технологические признаки зерна различных сортов риса</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0636-4409</contrib-id><contrib-id contrib-id-type="scopus">57218104152</contrib-id><contrib-id contrib-id-type="researcherid">AFF-6035-2022</contrib-id><contrib-id contrib-id-type="spin">3118-1175</contrib-id><name-alternatives><name xml:lang="en"><surname>Papulova</surname><given-names>Elina Yu.</given-names></name><name xml:lang="ru"><surname>Папулова</surname><given-names>Элина Юрьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Ph.D. in Biology, Senior Scientist of Laboratory of Rice Quality</p> <p> </p></bio><bio xml:lang="ru"><p>канд. биол. наук, старший научный сотрудник лаборатории качества риса</p> <p> </p></bio><email>elya888.85@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5843-0930</contrib-id><contrib-id contrib-id-type="scopus">6506633861</contrib-id><contrib-id contrib-id-type="researcherid">ABW-7206-2022</contrib-id><contrib-id contrib-id-type="spin">9234-5609</contrib-id><name-alternatives><name xml:lang="en"><surname>Tumanyan</surname><given-names>Natalya G.</given-names></name><name xml:lang="ru"><surname>Туманьян</surname><given-names>Наталья Георгиевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sc. (Biology), Professor, Head of Laboratory of Rice Quality</p> <p> </p></bio><bio xml:lang="ru"><p>д-р биол. наук, профессор, заведующая лабораторией качества риса</p> <p> </p></bio><email>tngerag@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5465-3603</contrib-id><contrib-id contrib-id-type="scopus">57218100898</contrib-id><contrib-id contrib-id-type="researcherid">OIS-2400-2025</contrib-id><contrib-id contrib-id-type="spin">8023-0685</contrib-id><name-alternatives><name xml:lang="en"><surname>Chizhikova</surname><given-names>Svetlana S.</given-names></name><name xml:lang="ru"><surname>Чижикова</surname><given-names>Светлана Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Ph.D. in Biology, Senior Scientist of Laboratory of Rice Quality</p> <p> </p></bio><bio xml:lang="ru"><p>канд. биол. наук, старший научный сотрудник лаборатории качества риса</p> <p> </p></bio><email>Kvetochka2005@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-5157-5601</contrib-id><contrib-id contrib-id-type="spin">9739-2184</contrib-id><name-alternatives><name xml:lang="en"><surname>Troyan</surname><given-names>Ruslan N.</given-names></name><name xml:lang="ru"><surname>Троян</surname><given-names>Руслан Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Post-Graduate Student</p> <p> </p></bio><bio xml:lang="ru"><p>аспирант</p> <p> </p></bio><email>1998troyan@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2190-7408</contrib-id><contrib-id contrib-id-type="scopus">57218252312</contrib-id><contrib-id contrib-id-type="researcherid">OIS-2306-2025</contrib-id><contrib-id contrib-id-type="spin">6928-5880</contrib-id><name-alternatives><name xml:lang="en"><surname>Kumeiko</surname><given-names>Tatyana B.</given-names></name><name xml:lang="ru"><surname>Кумейко</surname><given-names>Татьяна Борисовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Ph.D. in Agriculture, Senior Scientist of Laboratory of Rice Quality</p> <p> </p></bio><bio xml:lang="ru"><p>канд. с.-х. наук, старший научный сотрудник лаборатории качества риса</p> <p> </p></bio><email>tatkumejko@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Federal State Budgetary Scientific Institution «Federal Scientific Rice Centre»</institution></aff><aff><institution xml:lang="ru">Федеральное государственное бюджетное научное учреждение «Федеральный научный центр риса»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-30" publication-format="electronic"><day>30</day><month>12</month><year>2025</year></pub-date><volume>17</volume><issue>6-2</issue><issue-title xml:lang="ru"/><fpage>376</fpage><lpage>392</lpage><history><date date-type="received" iso-8601-date="2026-01-20"><day>20</day><month>01</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Papulova E.Y., Tumanyan N.G., Chizhikova S.S., Troyan R.N., Kumeiko T.B.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Папулова Э.Ю., Туманьян Н.Г., Чижикова С.С., Троян Р.Н., Кумейко Т.Б.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Papulova E.Y., Tumanyan N.G., Chizhikova S.S., Troyan R.N., Kumeiko T.B.</copyright-holder><copyright-holder xml:lang="ru">Папулова Э.Ю., Туманьян Н.Г., Чижикова С.С., Троян Р.Н., Кумейко Т.Б.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rcsi.science/2658-6649/article/view/370309">https://journals.rcsi.science/2658-6649/article/view/370309</self-uri><abstract xml:lang="en"><p>Background. The quality of rice products, their physical properties and nutritional value depend on the degree of grain processing, including its polishing, which removes the surface shells and the germ. The task of the work is to assess the effect of the degree of grain polishing of Russian-bred rice varieties with different grain sizes and shapes on the physical (technological) traits of the grain.</p> <p>Purpose. The goal of the study was to assess the influence of the grain polishing degree of Russian-bred rice varieties with different grain sizes and shapes on the physical (technological) traits of the grain.</p> <p>Materials and methods. The research material included the following varieties: Favorit, Veles, Trio, Regul 2, Forsazh, Strombus, Prestige, Vector, most of which are approved for use. The set of parameters for assessing grain quality included the following indicators: grain size, vitreousity, grain fracturing, total milling yield, head rice content, and bran yield during polishing. The duration of polishing was 50, 90, and 120 seconds.</p> <p>Results. The mass of 1000 absolutely dry grains was in the range of 25.6–26.6 g in the group of medium-weight varieties and 28.4–33.1 g in the group of large-grain rice varieties. In the group of large-grain varieties, the varieties Forsazh and Strombus were the most resistant to intensive polishing, the varieties Prestige and Regul 2 were the least resistant; in the group of medium-weight varieties, the corresponding indicators of the head rice content were significantly lower.</p> <p>Conclusion. Significant dynamics of the indicators was noted already at the initial stage of grain polishing (90 s) in the rice varieties Favorit and Strombus for the indicator “head rice content”, Favorit and Utes - for the bran yield; at the stage of 120 s - in the vari-eties Regul 2 and Vector, Prestige for all traits, the varieties Trio and Forsazh for the indicators “total milling yield” and “bran yield”. Equivalent changes in the indicator of traits with different degrees of polishing were typical for the varieties Strombus and Utes for the indicator of total milling yield; Trio, Utes and Forsazh- for the head rice content and the variety Strombus - for the bran yield.</p></abstract><trans-abstract xml:lang="ru"><p>Обоснование. Качество рисопродуктов, их физические свойства и пищевая ценность зависят от степени обработки зерна, в том числе его шлифования, при котором удаляются поверхностные оболочки и зародыш. В работе поставлена задача провести оценку влияния степени шлифования зерна сортов риса российской селекции с различной крупностью и формой зерновки на физические (технологические) признаки зерна.</p> <p>Цель. Целью исследования являлась оценка влияния степени шлифования зерна сортов риса российской селекции с различной крупностью и формой зерновки на физические (технологические) признаки зерна.</p> <p>Материалы и методы. Материалом исследования служили сорта Фаворит, Велес, Трио, Регул 2, Форсаж, Стромбус, Престиж, Вектор, большинство из которых допущено к использованию. В комплекс параметров оценки качества зерна входили показатели признаков: крупности, стекловидности, трещиноватости зерна, общего выхода крупы, содержания целого ядра и выхода мучки при шлифовании. Длительность шлифования: 50, 90, 120 секунд.</p> <p>Результаты. Масса 1000 а. с. зерен находилась в диапазоне 25,6-26,6 г в группе средних по массе сортов и 28,4–33,1 г в группе крупнозерных сортов риса. В группе крупнозерных сорта Форсаж и Стромбус были наиболее устойчивы к интенсивному шлифованию, сорта Престиж и Регул 2 - наименее; в группе средних по массе сортов соответствующие показатели содержания целого ядра в крупе были значительно ниже.</p> <p>Заключение. Была отмечена значительная динамика показателей уже на начальном этапе шлифования зерна (90 с) у сортов риса Фаворит и Стромбус для показателя «содержание целого ядра», Фаворит и Утес – для выхода мучки; на этапе 120 с – у сортов Регул 2 и Вектор, Престиж для всех признаков, сортов Трио и Фор-саж для показателей «общий выход крупы» и «выход мучки». Равнозначным изменением показателей признаков при различной степени шлифования характеризовались сорта Стромбус и Утес для показателя общего выхода крупы; Трио, Утес и Форсаж – для выхода целого ядра и сорт Стромбус – для показателя выхода мучки.</p></trans-abstract><kwd-group xml:lang="en"><kwd>rice</kwd><kwd>technological traits</kwd><kwd>rice quality</kwd><kwd>polishing degree</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рис</kwd><kwd>технологические признаки</kwd><kwd>качество риса</kwd><kwd>степень шлифования</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Monks, J. L. F., Vanier, N. L., Casaril, J., Berto, R. M., Oliveira, M., Gomes, C. B., Carvalho, M. P., Dias, A. R. G., &amp; Elias, M. C. (2013). Effects of milling on proximate composition, folic acid, fatty acids and technological properties of rice. 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