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Analysis of the Extraction Condition of Soluble Acidic Polysaccharides from Ginseng Marc  

Choi, You-Jin (Plant Resources Research Institute, Duksung Women's University)
Hwang, Keum-Hee (Plant Resources Research Institute, Duksung Women's University)
Publication Information
Korean Journal of Pharmacognosy / v.42, no.1, 2011 , pp. 82-88 More about this Journal
Abstract
This study was carried out to investigate the optimum conditions for extraction of soluble acidic polysaccharides from ginseng marc. Method of carbazole-sulfuric acid was applied to determine the amount of acidic polysaccharides in ginseng marc. The amounts of soluble acidic polysaccharides in water extract of ginseng marc were increased with increasing extraction temperature. The contents of acidic polysaccharides were not significantly different despite the extraction time increasing from 0.5 hours to 6 hours. To estimate the rehydration rate of the freeze dried polysaccharide, the extracted acidic polysaccharide fraction powder was determined the amount of soluble acidic polysaccharides by carbazole-sulfuric acid method again. The rehydration rate of acidic polysaccharides from water-extract of red ginseng marc at room temperature was 100%. On the other hand, the rehydration rate of acidic polysaccharide of red ginseng marc at boiling temperature was about 50%. The rehydration rate of acidic polysaccharides from water-extract of white ginseng marc at room temperature was 50%. The rehydration rate of acidic polysaccharide of red ginseng marc at boiling temperature was about 40%. The rate of soluble acidic polysaccharide of Red Ginseng is higher than that of White Ginseng. We can find out the maximum extraction method of soluble acidic polysaccharide from ginseng marc.
Keywords
Ginseng marc; Rehydration rate; Acidic polysaccharide; Carbazole-sulfuric acid; Dinitrosalicylic acid assay;
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