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Impact of Seed Structure Modification on the Rate
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SYSNO ASEP 0305705 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Impact of Seed Structure Modification on the Rate Title Účinek modifikace struktury semen na rychlost extrakce superkritickým CO2 Author(s) Rochová, Kristina (UCHP-M)
Sovová, Helena (UCHP-M) RID, ORCID, SAI
Sobolík, Václav (UCHP-M)
Allaf, K. (FR)Source Title Journal of Supercritical Fluids. - : Elsevier - ISSN 0896-8446
Roč. 44, č. 2 (2008), s. 211-218Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords dic process ; supercritical extraction ; porosity Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GA104/06/1174 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40720504 - UCHP-M (2005-2011) Annotation Internal structure of soybeans was modified by the instantaneous controlled pressure drop process (DIC) when the material is heated by saturated steam for a short period of time and then rapidly evacuated. The bursting evaporation of moisture from all the mass of material caused by the pressure drop blows cavities in the material, breaks their walls and thus enhances subsequent extraction of oil from soybeans. Both the whole beans and milled beans and both the DIC-treated and non-treated beans were extracted with supercritical CO2 at 280 bar and 40 ºC. The extraction yield was measured and simulated by three mathematical models and equilibrium and mass transfer parameters were evaluated. The pore size distribution was measured as well. The results show formation of micropores in the beans by the DIC treatment and a substantial increase in the rate of extraction controlled by intraparticle diffusion. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2008
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