فعالية زيت البردقوش السوري Origanum syriacum كمضاد أكسدة و مضاد لنمو الممرضات

Abstract EN

The analysis of Origanum oil by GC-MS revealed that the oil contained mainly thymol (50.75%) and carvacrol (32.17%), and they constituted (82.92%) of total essential oil.

The oil also contained terpenes in different concentrations such as terpinen-4-ol (3.77%) and gamma-terpinene (1.24%).

Results of total compounds in oil revealed that the oil exhibited strong antioxidant activity as shown by the consistently high values of DPPH free radical-scavenging inhibition (91.8%) at 1000 ppm oil concentration.

In antimicrobial investigation with the serial dilutions in tubes.

The oil inhibited the growth of all tested microorganisms at different concentrations.

Pseudomonas aeruginosa was the most resistant strain tested at minimum inhibitory concentration (MIC) 6.25 µl/ml and MBC 12.5µl/ml while B.

cereus and S.

aureus were the most sensitive strain tested at MIC 0.39µl/ml and MBC 0.78µl/ml.

The study demonstrated that Oregano represents an economic source of natural mixtures of antibacterial compounds that can be as effective as a modern medicine to inthibit pathogenes and a safe alternative to treat infectious diseases.