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In vitro Antimicrobial Activities of Essential Oils from Rosmarinus officinalis on some pathogens.


Bachir raho G1, Benattouche Z1, Bevilacqua A2, Corbo MR2, Sinigaglia M2, Pignatiello S2.
Page No. 150-153


Abstract

Rosemary (Rosmarinus officinalis L.), an evergreen plant belonging to the Lamiaceae family of
herbs and spontaneously growing in the Mediterranean region. It has been reported to possess a
number of therapeutic applications in folk medicines in curing or managing of a wide range of
inflammatory and infectious diseases. This study was designated to evaluate the antimicrobial
activity of the essential oils obtained from Rosmarinus officinalis against Coliform spp,
Pseudomonas spp, Saccharomyces cerevisiae (EC1118), Zygosaccharomyces bailii (DSM 70492)
and Lactobacillus plantarum (DSM2601) using agar well diffusion method. The results revealed
that the oil showed moderate antibacterial activity toward all tested strains with a zone of inhibition
ranging from 1 and 3 mm. Among the test microorganisms, essential oils exhibited maximum zone
of inhibition against Coliform spp and L. plantarum (3 mm) and minimum zone of inhibition against
all organisms – except Z. baillii – (1mm). This established a good support to the use of this
essential oil in herbal medicine and as a base for the development of novel potent drugs and
phytomedicine.
Keywords : Rosmarinus officinalis oils; antibacterial activity; organisms.


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