Résumé:
The olive tree is very popular in Algeria and widely used by local populations. The medicinal
properties of the olive tree are mainly attributed to the leaves. Considering the beneficial properties
of the latter for human health in herbal medicine, their persistence throughout the year and their
enormous amount generated as a by-product of the olive industry in Mediterranean countries. Olive
leaves are characterized by different phenolic compounds representing an important source of
oleuropein (phenolic compound of interest).
Antimicrobial properties of olive leaf extract on some yeast were examined in this study. Fresh olive
leaf extracts were -prepared. using various solvents (water, ethanol, acetone, ethyl acetate) in Soxhlet
apparatus. Antimicrobial effects of these extracts were tested against Saccharomyces cerevisiae
ATCC 9763, Schizosaccharomyces pombe, Saccharomyces uvarum, Candida oleophila,
Metschnikowia fructicola and Kloeckera apiculata.