Proceedings of the Korean Society for Agricultural Machinery Conference (한국농업기계학회:학술대회논문집)

Korean Society for Agricultural Machinery (한국농업기계학회)
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DEVELOPMENT OF A NEW MODEL OF DRYING SYSTEM FOR HIGH YIELD OF THE HEAVEN GRADE GINSENG

  • Chang, D.I. (Department of Agricultural Machinery Engineering Chungnam National University) ;
  • Bahng, S.H. (Department of Agricultural Machinery Engineering Chungnam National University) ;
  • Chang, Y.H. (Department of Agricultural Machinery Engineering Chungnam National University) ;
  • Kang, H.Y. (Department of Forest Products Technology Chungnam National University)
  • Published : 2000.11.01
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Abstract

The red ginseng is very popular as a health food. It has been manufactured with raw ginseng by the conventional method. But, the yield of the heaven grade ginseng (the best quality red ginseng) among the whole products is around 5-7％, Therefore, the yield should be improved in order to increase economic returns. In this study, a new model of drying system was developed to improve the yield of heaven grade ginseng from 7% to 15% or more. For this system, temperature and relative humidity were controlled by the feedback control system, and a solenoid valve for steam supply and other variables were controlled by the PC. The special features of this system developed are an image processing system for monitoring the red ginseng during the drying process in the drying chamber, and a cylindrical porous tray for holding ginseng that is rotating with the speed of 0-10rpm in the drying chamber and makes uniform drying of red ginseng possible.

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