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Quality Characteristics during Storage of Ginseng Washed by Different Methods  

Lee, Hyun-Seok (Korea Food Research Institute)
Cha, Hwan-Soo (Korea Food Research Institute)
Kim, Byeong-Sam (Korea Food Research Institute)
Kwon, Ki-Hyun (Korea Food Research Institute)
Publication Information
Food Science and Preservation / v.16, no.3, 2009 , pp. 342-347 More about this Journal
Abstract
We sought to improve the methods for washing fresh raw ginseng. The quality of ginseng surface-washed by different methods was evaluated during storage at 10C and $20^{\circ}C$. The raw ginseng surface-washing method was a full-cone spray-type procedure using water and air. The water for decontamination had an electrolysis value of 80 ppm, also known as electrolysis water $2^{\circ}C$ water and water containing 5 ppm chlorine dioxide, were also used for decontamination. The Hunter color (${\Delta}E$) of ginseng washed with water withan electrolysis value of 80 ppm, or water with 5 ppm chlorine dioxide, was greater than that seen after other washing methods were used. The weight loss after washing with 5 ppm chlorine dioxide water was similar to that seen after washing with $2^{\circ}C$ water or 80 ppm electrolysis water. Reductions in total microorganism levels, and counts of yeasts and molds, assayed 10 days after washing with 5 ppm chlorine dioxide water were greater than seen after use of other sterilization methods. Quality maintenance on storage, at both 10C and 20C, after washing with 80 ppm electrolysis water, was better than that noted after other sterilization methods. The moisture content of washed ginseng was similar under all storage conditions tested.
Keywords
dioxide chlorine water; electrolysis water; ginseng; washing-system;
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