Table 1.

Qualitative phytochemical screening of Me-RCR.

Phytochemical class	Observations	Results
Alkaloids	Turbidity/precipitation	-
Carbohydrates	Formation of a purple product at the interface of the two layers	+
Flavonoid	Formation of yellow color, which changed to colorless on acid addition	+++
Steroids	Green to pink color was absent	-
Terpenoids	Appearance of reddish brown-deep red color	-
Cardiac Glycosides	Lower reddish-brown layer and upper acetic acid layer, which turns bluish green	+
Tannins	Appearance of white precipitation	++
Saponins	Stable froth formation	+

(-) = not present; (+) = present in low concentration; (++) = present in moderately high concentration; and (+++) = present in very high concentration.