Flavonoid glycosides of Tribulus pentandrus and T. Terrestris

Antibacterial and antifungal activities of different parts of Tribulus terrestris L. growing in Iraq

“…The activity of the plant against both Grampositive and Gram-negative bacteria may be indicative to the presence of broad spectrum antibiotic compounds or simply general metabolic toxins in the plant, in addition to the plant (fruits, leaves and root) content of pharmacological active metabolites like furostanol and spirostanol saponins (Kostova and Dinchev, 2005), flavonoid glycosides (Saleh et al, 1982), phytosterols and some amides (Xu et al, 2000). The plant also contains a mixture of Bcarboline alkaloids: harmane, norharmane, tetrahydroharmane, harmine, harmaline, harmol, harmalol, ruin and dihydroruin (Bourke et al, 1990).…”

<i>Tribulus </i><i>T</i><i>errestris</i> L. (Zygophyllaceae) Flavonoid Compounds

“…Saleh et al (1982) studies showed existing flavonoid glycosides in whole plant [14]. Also Wu et al (1999) reported flavonoid content in the species [8].…”

“…They found that the aqueous extract o f Tribulus terrestris possessed greater antibacterial activ ity than ethanolic ext ract and inhibited the gro wth of selected bacteria and fungi indicating broad spectru m b ioactive nature of Tribulus terrest ri s [11,12]. Th e act iv ity o f the p lant against b oth Gram-positive and Gram-negative bacteria may be indicative to the presence of broad spectrum antib iotic co mpounds or simp ly general metabolic to xins in the plant, in addition to the plant (fruits, leaves and root) content of pharmacological act iv e met ab o lit es like fu ro st ano l and sp i-ro st an o l saponins [13], flavonoid glycosides [14], phytosterols and some amides [10]. Wu et al (1999) found that the quantity of main flavonoids is about 1.5 t imes that of main saponins.…”

Intraspecific Variability of Main Phytochemical Compounds inTribulus TerrestrisL. from North Bulgaria

“…Tribulus terrestris is a rich source of biologically active compounds such as saponins, flavonoids, amides, alkaloids, etc. (10) and the therapeutic properties of the plant have been known for many years. the plant's extracts have been used in traditional and modern medicine for treatment of sexual disorders, blood pressure, liver, kidney, urinary, and coronary heart diseases, eye problems, edema, etc.…”