TY  - BOOK
AU  - Han, Chung-Su
TI  - Drying characteristics of sea tangle using combination of microwave and far-infrared dryer
SN  - 1738-1266
PY  - 2016///
CY  - Korea
PB  - The Korean Society for Agricultural Machinery, 
KW  - combined drying
KW  - far-infrared drying
KW  - microwave drying
KW  - sea tangle
N1  - 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 (90 C and 100 C) 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 100C by the far-infrared dryer. Of the drying models verified in this study, the logarithmic model showed high accuracy with the coefficient of determination R2>0.7825 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 100C by the far-infrared dryer.  Conclusion: Considering the drying timr, 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 100C by a far-infrared dryer
ER  -