Thin layer solar drying characteristics of silkworm pupae
Journal article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Usub T., Lertsatitthankorn C., Poomsa-ad N., Wiset L., Siriamornpun S., Soponronnarit S.
Publisher: Elsevier
Publication year: 2010
Journal: Food and Bioproducts Processing (0960-3085)
Volume number: 88
Issue number: #
Start page: 149
End page: 160
Number of pages: 12
ISSN: 0960-3085
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
Thin layer solar drying experiments of silkworm pupae using a solar tunnel dryer were conducted under the tropical weather conditions of Mahasarakham, Thailand. The dryer consisted of a transparent glass covered flat-plate collector and a drying tunnel connected in series to supply hot air directly into the drying tunnel using a blower. During the experiments, silkworm pupae were dried to the final moisture content of 0.15 kg water kg-1 dry matter from 4.37 kg water kg-1 dry matter in 373 min at the corresponding air flow rate of 0.32 kg s-1. Ten different thin layer drying models were compared according to their coefficient of determination to estimate drying curves. The Midilli-Kucuk model precisely represents the solar tunnel drying behavior with the coefficient of determination (R2) of 0.9982. The maximum drying rate and effective moisture diffusivity were 0.6723 kg water kg-1 dry matter h-1 and 2.7696 ื 10-10 m2 s-1, respectively, on the drying air flow rate of 0.32 kg s-1. A quality assessment shows that the lipid content of the dried silkworm pupae was not affected by the solar tunnel dryer. A slight decrease of polyunsaturated fatty acid (PUFA) was observed. ฉ 2009 The Institution of Chemical Engineers.
Keywords
Effective moisture diffusivity, Lipid content, Solar tunnel dryer
Contact Information