Table 1.

The phytochemical components in ethanol extract of Andrographis paniculata based on preliminary phytochemical screening tests

No.	Phytochemical constituent	Test	Inference
1	Alkaloids	Wagner’s test	++
		Mayer’s test
2	Carbohydrates	Molisch’s test	+
		Fehling’s test
3	Flavonoids	Shinoda test	++
4	Glycosides	Borntrager’s test	++
		Legal’s test
		Keller-Killiani test
5	Saponins	Froth test	+
6	Steroids	Salkowski reaction	+++
7	Tannins and phenolic compounds	Ferric chloride test	++
		Lead acetate test
		Nitric acid test
8	Terpenoids	Libermann-Burchard’s test	+

+, mildly present; ++, highly present; +++, more highly present.