In an extraction process comprising extracting a raw extract from Emblica officinalis the improvement comprising conducting the extraction under conditions of time, temperature and atmosphere, to inhibit the formation of black specks and/or oligomeric and/or polymeric tannins and/or oxidation products thereof.

 
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> Epimeredinoside a, and the pharmaceutics of epimeredinoside a-contained epimeredi indica root extract and its preparatory methods

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