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Drying Characteristics of Sea Tangle Using Combination of Microwave and Far-Infrared Dryer
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  • Journal title : Journal of Biosystems Engineering
  • Volume 41, Issue 1,  2016, pp.43-50
  • Publisher : Korean Society for Agricultural Machinery
  • DOI : 10.5307/JBE.2016.41.1.043
 Title & Authors
Drying Characteristics of Sea Tangle Using Combination of Microwave and Far-Infrared Dryer
Han, Chung-Su; Kang, Tae-Hwan; Lee, Jeong-Hyeon; Won, Jin-Ho; Cho, Byeong-Hyo; Cho, Sung-Chan;
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 Abstract
Purpose: The present study is aimed at examining the drying characteristics of sea tangle through a combination of microwave and far-infrared drying experiment and finding the optimal drying conditions. Methods: Sea tangle was cleaned and cut into fine pieces (5mm) before they were subjected to combinational drying by microwave and far-infrared ray. The amount of specimen per drying is 2 kg. The finely cut pieces of sea tangle were preheated in a microwave dryer for three different lengths of time (10, 15, and 20 min). Subsequently, they were dried using a far-infrared dryer at tow temperatures ( and ) at an air velocity of 0.8 m/s until the final moisture content reduced to 10%. Results: Sea tangle dried under the condition of 20 min of preheating in the microwave dryer and drying at by the far-infrared dryer. Of the drying models verified in this study, the logarithmic model showed high accuracy with the coefficient of determination > and RMSE<0.1095. The rehydration ratio of sea tangle was the highest (12.87 g water/g dry matter) under the condition of 15 min of preheating in the microwave dryer and drying at by the far-infrared dryer. The energy consumption for the combination of microwave and far-infrared drying was the lowest (4.78 kJ/kg water) under the condition of 20 min of preheating in the microwave dryer and drying at by the far-infrared dryer. Conclusions: Considering the drying time, discoloration during drying, rehydration ratio, and energy consumption for the drying of sea tangle, the optimal drying conditions for high-quality sea tangle are 15 min of preheating in a microwave dryer and drying at by a far-infrared dryer.
 Keywords
Combined drying;Far-infrared drying;Microwave drying;Sea tangle;
 Language
English
 Cited by
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