Test for tannins (ferric chloride test)

DN Dereje Nigussie
GD Gail Davey
BL Belete Adefris Legesse
AF Abebaw Fekadu
EM Eyasu Makonnen
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Each plant extract was stirred with 1 ml of distilled water, after filtered, ferric chloride reagent added to the filtrate. A blue-black, green, or blue-green precipitate indicates the presence of tannins.

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