Articles
SUSCEPTIBILITY OF STAPHYLOCOCCUS AUREUS AND ESCHERICHIA COLI TO OLIVE-TREE PARTS
Article number
826_1
Pages
21 – 24
Language
English
Abstract
The antibacterial activity of olive-tree parts was tested against Staphylococcus aureus and Escherichia coli. Increasing volumes of homogenate and centrifuged parts (supernatant and pellet) were incorporated into solid and liquid media to determine the minimum inhibitory concentration (MIC). The supernatant of barks was the most efficient with 2% of MIC for S. aureus and 5% for E. coli. No inhibitory action was observed with pellet and supernatant of roots but significant action (5%) of homogenate of roots against S. aureus was observed in both media.
Homogenate of barks was effective only against S. aureus. For leaves, the lowest MIC (6%) was observed with the homogenate against S. aureus.
It is clear that S. aureus is more susceptible to olive-tree parts.
A wide range of MIC was obtained independently on used media and tested strain.
This suggests that the inhibitory action of each centrifuged part of olive-tree parts against bacteria should be quantified and characterized.
Homogenate of barks was effective only against S. aureus. For leaves, the lowest MIC (6%) was observed with the homogenate against S. aureus.
It is clear that S. aureus is more susceptible to olive-tree parts.
A wide range of MIC was obtained independently on used media and tested strain.
This suggests that the inhibitory action of each centrifuged part of olive-tree parts against bacteria should be quantified and characterized.
Authors
L. Boukraä
Keywords
antibacterial, olive tree parts, Staphylococcus aureus, Escherichia coli
Online Articles (62)