Assessment of scale-up parameters of microwave-assisted extraction via the extraction of flavonoids from cocoa leaves

Chan, C.H. and Yusoff, R. and Ngoh, G.C. (2015) Assessment of scale-up parameters of microwave-assisted extraction via the extraction of flavonoids from cocoa leaves. Chemical Engineering & Technology, 38 (3). pp. 489-496. ISSN 0930-7516

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/ceat.20...

Abstract

Microwave-assisted extraction (MAE) is a promising technique for the extraction of flavonoid compounds from plants. However, it is difficult to scale up due to the complex mass transfer involved. This has prompted the study of parameters for scaling up the system by considering energy-related parameters, i.e. the nominal power density and the absorbed power density (APD). Modeling of MAE of flavonoid compounds from cocoa (Theobroma cacao L.) leaves using the film theory model was performed for this purpose. Operating parameters such as the sample particle size, the solvent-to-feed ratio, and the microwave irradiation power were also included in the kinetic study. The APD exhibited its aptitude as scaling-up parameter as it can characterize both the extraction kinetics and the extraction yields of MAE. Furthermore, it can be used as a reference for predicting the optimum extraction time of MAE under various heating conditions.

Item Type: Article
Additional Information: Cc3vp Times Cited:0 Cited References Count:33
Uncontrolled Keywords: Absorbed power density, film theory, kinetic modeling, optimum extraction time, solid-liquid extraction, ultrasonic extraction, experimental kinetics, solvent-extraction, industrial-scale, rosa-rubiginosa, essential oil, l. leaves, plants, anthocyanins,
Subjects: T Technology > T Technology (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 17 Sep 2015 06:32
Last Modified: 17 Sep 2015 06:32
URI: http://eprints.um.edu.my/id/eprint/13938

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