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Conference Paper: The role of aperture in the extraction of functional components from plant materials

TitleThe role of aperture in the extraction of functional components from plant materials
Authors
Di, QQYang, JHZhao, JWang, L
KeywordsSem
Porous Media
Plant Materials
Mae Mechanism
Aperture
Issue Date2009
PublisherASME.
Citation
The ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences (HT2009), San Francisco, CA., 19-23 July 2009. In ASME Heat Transfer Summer Conference Proceedings, 2009, v. 3, p. 661-666 How to Cite?
DOI: http://dx.doi.org/10.1115/HT2009-88388
AbstractThe extraction of functional components from natural plant is one of important processing in the development and further practical application of plant product. Microwave assisted extraction (MAE) has been widely used in the extraction of many samples for its unique heating mechanism, short extraction time and high yield of extract. Astragalus slice is a special and typical plant porous media. We describe an approach by scanning electronic microscope (SEM) to characterize the trachea and aperture of Astragalus slices irradiated 20 min by microwave at 600 W and 900 W, with the aim to analyze the effect of the microwave power on the extraction yield by SEM and discuss further the relationship between the microstructure characteristics of sample and mechanism on mass transfer in micro-scale. It is found that extract with the 20 min irradiation of microwave at 600 W is higher than that at 900 W because the apertures on the trachea wall remain open at 600 W, but shrink at 900 W. Moreover, we confirm the important role of the aperture in the extraction of plant materials. Therefore, this study has significant meanings to develop the optimized extraction technology of plant porous media and maintain or improve the quality of extract. Copyright © 2009 by ASME
Descriptionv. 3 entitled: Combustion, Fire and Reacting Flow; Heat Transfer in Multiphase Systems; Heat Transfer in Transport Phenomena in Manufacturing and Materials Processing; Heat and Mass Transfer in Biotechnology; Low Temperature Heat Transfer; Environmental Heat Transfer; Heat Transfer Education; Visualization of Heat Transfer
paper no. HT2009-88388
Persistent Identifierhttp://hdl.handle.net/10722/159012
ISBN
978-0-7918-4358-1
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorDi, QQen_US
dc.contributor.authorYang, JHen_US
dc.contributor.authorZhao, Jen_US
dc.contributor.authorWang, Len_US
dc.date.accessioned2012-08-08T09:05:07Z-
dc.date.available2012-08-08T09:05:07Z-
dc.date.issued2009en_US
dc.identifier.citationThe ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences (HT2009), San Francisco, CA., 19-23 July 2009. In ASME Heat Transfer Summer Conference Proceedings, 2009, v. 3, p. 661-666en_US
dc.identifier.isbn978-0-7918-4358-1-
dc.identifier.urihttp://hdl.handle.net/10722/159012-
dc.descriptionv. 3 entitled: Combustion, Fire and Reacting Flow; Heat Transfer in Multiphase Systems; Heat Transfer in Transport Phenomena in Manufacturing and Materials Processing; Heat and Mass Transfer in Biotechnology; Low Temperature Heat Transfer; Environmental Heat Transfer; Heat Transfer Education; Visualization of Heat Transfer-
dc.descriptionpaper no. HT2009-88388-
dc.description.abstractThe extraction of functional components from natural plant is one of important processing in the development and further practical application of plant product. Microwave assisted extraction (MAE) has been widely used in the extraction of many samples for its unique heating mechanism, short extraction time and high yield of extract. Astragalus slice is a special and typical plant porous media. We describe an approach by scanning electronic microscope (SEM) to characterize the trachea and aperture of Astragalus slices irradiated 20 min by microwave at 600 W and 900 W, with the aim to analyze the effect of the microwave power on the extraction yield by SEM and discuss further the relationship between the microstructure characteristics of sample and mechanism on mass transfer in micro-scale. It is found that extract with the 20 min irradiation of microwave at 600 W is higher than that at 900 W because the apertures on the trachea wall remain open at 600 W, but shrink at 900 W. Moreover, we confirm the important role of the aperture in the extraction of plant materials. Therefore, this study has significant meanings to develop the optimized extraction technology of plant porous media and maintain or improve the quality of extract. Copyright © 2009 by ASMEen_US
dc.languageengen_US
dc.publisherASME.-
dc.relation.ispartofASME Heat Transfer Summer Conference 2009 Proceedingsen_US
dc.subjectSemen_US
dc.subjectPorous Mediaen_US
dc.subjectPlant Materialsen_US
dc.subjectMae Mechanismen_US
dc.subjectApertureen_US
dc.titleThe role of aperture in the extraction of functional components from plant materialsen_US
dc.typeConference_Paperen_US
dc.identifier.emailWang, L: lqwang@hku.hken_US
dc.identifier.authorityWang, L=rp00184en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1115/HT2009-88388-
dc.identifier.scopuseid_2-s2.0-77952871882en_US
dc.identifier.hkuros164964-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77952871882&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume3en_US
dc.identifier.spage661en_US
dc.identifier.epage666en_US
dc.identifier.scopusauthoridWang, L=35235288500en_US
dc.identifier.scopusauthoridZhao, J=8856756500en_US
dc.identifier.scopusauthoridYang, J=8353545200en_US
dc.identifier.scopusauthoridDi, Q=18934007800en_US
dc.customcontrol.immutablesml 140610-

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