LAPSE:2020.0003
Published Article
LAPSE:2020.0003
Effect of Loading on Wheat Germ Drying in a Batch Fluidized Bed for Industrial Production
Der-Sheng Chan, Meng-I Kuo
January 2, 2020
A high loading production in the manufacturing process of wheat germ (WG) drying is important for reducing the production costs. From a cost perspective, the drying performance become more effective in a batch process when the loading increases. The objective of this investigation was to evaluate the drying performance of WG with different loadings, from 2 to 9 kg, at 120 °C in a fluidized bed dryer. The moisture content, according to the American Association of Cereal Chemists (AACC) method, and the water activity using a thermal hygrometer were measured. The absolute humidity, diffusivity of moisture, and thermal efficiency were analyzed using a mathematical model. An analysis of the dehydration flux demonstrated a linear relationship between dehydration time and WG loading using a fluidized bed dryer. The kinetics of WG drying were observed with a simple exponential model used to match the experimental observation, indicating that the drying rate constant decreases with an increase in WG loading. A linear relationship was obtained between the WG loading and heating time (heating time = −0.212 + 0.577 × WG loading). On this basis, a process optimization was developed for industrial operation, and for predicting the drying performance of WG for industrial-scale production.
Keywords
dehydration, drying rate constant, fluidized bed drying, moisture content, wheat germ
Suggested Citation
Chan DS, Kuo MI. Effect of Loading on Wheat Germ Drying in a Batch Fluidized Bed for Industrial Production. (2020). LAPSE:2020.0003
Author Affiliations
Chan DS: Department of Information Technology, Lee-Ming Institute of Technology, New Taipei City 243, Taiwan [ORCID]
Kuo MI: Department of Food Science, Fu Jen Catholic University, New Taipei City 24205, Taiwan
Journal Name
Processes
Volume
7
Issue
12
Article Number
E864
Year
2019
Publication Date
2019-11-20
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr7120864, Publication Type: Journal Article
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LAPSE:2020.0003
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doi:10.3390/pr7120864
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Calvin Tsay
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