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KMID : 0380619850170030227
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Korean Journal of Food Science and Technology
1985 Volume.17 No. 3 p.227 ~ p.231
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Effect of Ethanol Concentration on Saponin Composition of Red Ginseng Extract
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Abstract
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The effect of ethanol concentration on saponin composition of red ginseng extract was studied during extraction at 80℃ for 5 times of 8 hours. The increase in ethanol concentration from 0% to 90% resulted a gradual reduction in solids yield and an increase in the recovery of total ginsenosides. All of the ginsenosides determined were also significantly increased. but ginsenoside -Rb₁, -Rb₂ and -Rd were relatively decreased a little by raising the concentration 70% to 90%. The yield ratio of protopanaxadiol/protopanaxatriol saponin were in the range of 1.69∼1.95. No significant improvement in pure saponin yield teas observed between 70% and 90% ethanol. Extraction with 70% ethanol was suggested for preparation of red ginseng extract from the result of this work.
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