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Seit S. Jingilbaev, Assan B. Ospanov, Stepan G. Akterian, Shukhrat M. Velyamov. Modeling the Process of Enzymatic Extraction of Pectin Substances from Red Beet (Beta Vulgaris L. Var. Conditiva) Using an Extractor Equipped With an Ultrasonic Emitter and a High-Speed Mixer. IJAST 2020, 29, 1528 - 1540.