Table 2.

Phytochemical screening results.

Compounds		Species
		Juglans regia L. leaves	Juglans regia L. barks	Tetraclinis articulata (Vahl) Masters	Olea europaea L. var. Sylvestris
Tannins	Tannins Catechic tannins Gallic tannins	+++ +++ 0	+++ +++ 0	++ + 0	+++ ++ 0
	Alkaloids	0	0	0	0
Flavonic Compounds	Anthocyanins Flavones Flavanones Flavanols and Flavanonols Genines Leucoanthocyans Catechols	++ 0 0 +++ +++ 0 +++	+ 0 0 0 ++ 0 +++	0 0 0 0 0 0 +++	0 0 0 0 0 0 ++
Terpenoids	Sterols and Triterpenes Saponosides	++ ++	++ +	+++ +++	+++ +++
Reducing Compounds	Reducing Compounds Mucilages Oses and holosides Cyanogenetic compounds	++ 0 0 0	+++ ++ + +	+++ +++ +++ 0	+++ 0 0 +
Anthracene derivatives	Free anthracenes	+++	0	0	0
	Combined Anthracenic: C-heterosides O-heterosides	+ ++	+ ++	+ +++	+ 0
	Coumarins	++	0	0	0

+++: Very positive reaction; + +: Moderately positive reaction; +: Weakly positive reaction; 0: Total absence.