Determination of Optimal Surface Area to Volume Ratio for Thin-Layer Drying of Breadfruit (Artocarpus altilis)

C George, R Mcgruder, K Torgerson
2007 International Journal for Service Learning in Engineering   unpublished
Experiments to determine the optimal size shred of breadfruit for sun drying in the Caribbean were conducted and verified. To determine optimal shred size, ease of shredding and handling as well as the drying characteristics were considered. Additional experiments compared the drying characteristics of breadfruit to several types of produce more readily available for use in the laboratory and examined the effect of alternative bases or backgrounds for sun drying. An optimal surface area to
more » ... e ratio is recommended and found to dry breadfruit under average Caribbean conditions (27-30˚C30˚C, 60-65% RH, ~800 W/m 2 solar radiation and 1.5-2.0 m/s prevailing winds) in about three hours. Index Terms-Breadfruit drying, open sun drying, shred size, thin-layer drying.