Table 2. Phytochemical screening (E₁KC)

Active compounds	Extraction solvent1)
	Trichloroethylene	Acetone	Ethanol	Water
Alkaloids	+	+	+	+
Polyphenols	+	+	+	+
Sterols and triterpenes	+	−	−	−
Tannins	−	+	+	+
Reducing compounds	−	+	+	−
Flavonoids	−	+	+	−
Saponins	−	−	−	+
Anthraquinones	−	+	+	+

+/−: presence / absence of the active compounds.
Solvent used to obtain the corresponding extracts.
E₁KC: sample 1 Kévazingo from Kango collected at the buttress.