Phytochemical Screening and Potential Antibacterial Activity of Defatted and Nondefatted Methanolic Extracts of Xao Tam Phan (Paramignya trimera (Oliv.) Guillaum) Peels against Multidrug-Resistant Bacteria
Table 1
Phytochemical analysis of the nondefatted peel (NDP) and defatted peel (DP) of P. trimera.
Test
Observation
NDP
DP
Alkaloid
Bouchardat
Formation of brown precipitate
—
—
Mayer
Formation of yellow-white precipitate
—
+
Dragendorff
Formation of orange precipitate
—
+
Flavonoids
Alkaline reagent
Appearance of yellow colour, become colourless when adding diluted HCl solution