Macrofilaricidal Activity, Acute and Biochemical Effects of Three Lichen Species Found on Mount Cameroon

Table 1

Yield and classes of secondary metabolites in lichen extracts.

Extract code	Yield (%)	Alkaloids	Cardiac glycosides	Flavonoid	Phenolics	Saponins	Steroids	Tanins
USamet	1.3	-	+	++	++	++	++	++
USahex	1.4	++	+++	+	-	++	+++	-
Pammet	12.9	-	-	++	-	+++	+	+++
Pamhex	1.2	-	+	++	-	+	+++	++
Hetmet	1.1	-	+	+	-	+++	++	+
Hethex	6.2	-	-	+	-	++	+	-

Relative amounts of secondary metabolites: -, absent; +, trace; ++, moderate; +++, high. USa: Usnea articulata; Pam: Parmotrema tinctorum; Het: Heterodermia obscurata. Subscripts: hex = hexane extract; met = methanol extract.