Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/58039
Title: Convective drying of banana, guava and potato pieces : Effect of cyclical variations of air temperature on drying kinetics and color change
Authors: Chua, K.J. 
Mujumdar, A.S. 
Chou, S.K. 
Hawlader, M.N.A. 
Ho, J.C. 
Keywords: Color parameters
Cosine-wave profile
Heat pump dryer
Square-wave profile
Issue Date: 2000
Source: Chua, K.J.,Mujumdar, A.S.,Chou, S.K.,Hawlader, M.N.A.,Ho, J.C. (2000). Convective drying of banana, guava and potato pieces : Effect of cyclical variations of air temperature on drying kinetics and color change. Drying Technology 18 (4-5) : 907-936. ScholarBank@NUS Repository.
Abstract: Pieces of banana, guava and potato were dried in a two-stage heat pump dryer capable of precise control of air humidity with predetermined cyclic variations of air temperature entering the drying chamber. The air temperature variations tested were : a cosine, a reversed cosine and three different square wave profiles with peak-to-valley variations from 20°C to 40°C. The cycle time was about 60 minutes with drying time of approximately 300 minutes. The drying samples were placed on trays in a thin layer. With appropriate choice of temperature-time variation, it is possible to reduce the overall color change while maintaining high drying rates. Copyright © 2000 by Marcel Dekker, Inc.
Source Title: Drying Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/58039
ISSN: 07373937
Appears in Collections:Staff Publications

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