تعيين الخصائص المضادة للتأكسد لمستخلصات أوراق نبات Vitex agnus-castus L. المزروع و البري و دراسة التضاد على نبات الرشاد (Lipidium sativum L.)‎

Abstract EN

This Sudy was conducted in the research laboratory of the chemi^ry department, Faculty of Sciences (Damascus University/Syria).

The total phenolics and flavonoids, the scavenging effect on 2.2-diphenyl-1-picrylhydrazyl radical (DPPH) were determined in the ethanolic extract of both cultivated and wild Vitex agnus-castus L.

leaves.

The allelopathic effect of those plant extracts on the seed germination and seedling growth of Cress (Lipidium sativum L.) was Sudied.

The results showed that the leaves extracts of cultivated and wild Vitex agnus-ca&us L.

had approximately the same concentrations of total phenolics.

The total flavonoids and the scavenging effect of the cultivated plant on DPPH radical were higher than the wild one.

The allelopathic effect of the leaves extracts on the growth of Cress might be attributed to their antioxidant activity.

This extract revealed a complete inhibition of germination of the seeds at (75g/l).

The minimum concentration of both plants extracts that inhibit 100% of root growth was (50g/l), while for the shoot, it was (50 g/l) and (75 g/l) in extracts of cultivated and wild plants, respectively.

This allows the usage of Vitex agnus-castus L.

extracts in various environmental and indu^rial applications.