Seasonal Variation of Ginseng Root Constituents

Date of harvest Yield of MeOH extract (%) Contents of carbohydrates in extract (%) Contents of saponins (%) in extract (in roots )  

It was also found that keeping fresh roots harvested in the summer at 2° for one month resulted in a remarkable increase of extract. This is also due mainly to the formation of sucrose from starch (77). 

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