الفهرس 
INTRODUCTION
MATERIALS AND METHODSOnly 14 pages are availabe for public view
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Abstract
The olive tree (Olea europaea L), is a characteristic species of the Mediterranean landscape. This is widely known for its strong tendency for alternate bearing which severely affects the fruit yield and year to year. Olive leaves constitute a copious by-product from the olive tree cultivation and can be found in large amounts in olive oil industries and olive groves. They contain simple phenols, flavonoids, and secoiridoids. Among them, oleuropein, which is the major secoiridoid compound in olive leaves, has shown interesting biological and pharmacological properties, in large part attributed to its putative antioxidant and anti-inflammatory effects. Consequently, valorisation of these by-products is worth addressing. Medicinal plants have always been an important source of new alternative effective compounds for human therapy. Currently, there are many of scientific evidences indicate that the medicinal plants contain a lot of hypoglycemic chemical compounds.