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. 2011 Apr 1;34(2):290–297. doi: 10.1590/S1415-47572011000200021

Table 1.

Phytochemical screening.

Test Melissa officinalis
Phenolic compounds
W-Ext + KOH 3% +
W-Ext + FeCl3 1% +
Tannins
W-Ext + gelatine -
W-Ext + FeCl3 3% +
Flavonoids qualitative
W-Ext + MgO/HCl +
Flavonoids quantitative UV 425 nm
CH3OH-Ext 0.572
Alkaloids
W-Ext + Mayers Reagent -
W-Ext + Bertrand’s Reagent -
W-Ext + Dragendorff’s Reagent -
W-Ext + Bouchard’s Reagent +
Antraquinones
W-Ext + KOH 3% -
Coumarins
CH3CH2OH-Ext + KOH/UV 365 nm +
Saponins
W-Ext + HCl (persistent foam) -

W-Ext – water extract./ CH3OH-Ext – methanol extract / CH3CH2OH-Ext – ethanol extract / (–)negative / (+)positive.