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International Agrophysics
wydawca:Instytut Agrofizyki
im. B. Dobrzańskiego
w Lublinie
ISSN: 0236-8722

vol. 22, nr. 2 (2008)

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Dry matter extraction from valerian roots (Valeriana officinalis L.) with the help of pulsed acoustic field
(pobierz wersję PDF)
Z. Kobus
Department of Food Engineering and Machinery, University of Life Sciences, Doświadczalna 44, 20-236 Lublin, Poland

vol. 22 (2008), nr. 2, pp. 133-137
streszczenie The paper presents results concerning ultrasonically assisted extraction of bioactive compounds from roots of valerian. Pulsed ultrasonic field was applied. The investigation was accomplished by varying irradiation time and sonic power. The results were compared with classical (silent) extraction. The study included evaluation of the coefficient of rehydratation, yield of extraction, dry matter content in extract and residue, and unit energy consumption. The utilisation of pulsed ultrasound was proved to be a more efficient technique than the classical method for extraction of bioactive components from dried valerian roots.
słowa kluczowe pulsed ultrasonic field, extraction, dry matter, valerian