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Thin layer solar drying characteristics of silkworm pupae

Paper ID Volume ID Publish Year Pages File Format Full-Text
19529 43073 2010 12 PDF Available
Title
Thin layer solar drying characteristics of silkworm pupae
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.

Keywords
Moisture content; Solar tunnel dryer; Effective moisture diffusivity; Lipid content
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 88, Issues 2–3, June–September 2010, Pages 149–160
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us