Journal of Ginseng Research
- Volume 16 Issue 2
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- Pages.111-123
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- 1992
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- 1226-8453(pISSN)
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- 2093-4947(eISSN)
A Study on Drying Characteristics and Drying Model Development of Korean Ginseng
인삼의 건조특성 구명 및 건조모델 개발에 관한 연구
-
Choe, Byeong-Min
(Department of Agricultural Machinery Engineering, College of Agriculture, Suncheon National University)
;
- Lee, Jong-Ho (Department of Agricultural Machinery Engineering, College of Agriculture, Suncheon National University) ;
-
Park, Seung-Je
(Department of Agricultural Machinery Engineering, College of Agriculture, Chonbuk National University)
- Published : 1992.08.01
Abstract
Drying characteristic data for peeled ginseng were obtained to determine dominant drying factors and fitted with five selected drying models and an empirical model. Among air temperature, relative humidity and diameter of ginseng root, drying air temperature was found to be the most influencing factor on drying rate. Drying velocity appeared faster as the drying temperature increased but its effect was less at high temperature than at low temperature. Quality change during the drying process did not occur except when relative humidity was 75fb. At high relative humidity, skin color of ginseng was turned to light brown. Approximate-Diffusion and the Empirical model for drying were in a good agreement with experimental data. The models are as follows;