Comparative study of the antibacterial action of natural and commercial oils of Rosmarinus officinalis L
No Thumbnail Available
Date
2022-12-30
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
جامعة الوادي - University of Eloued
Abstract
The article tries to shed light on the antibacterial power of rosemary oils to see if there is a
possibility of making drugs but also to compare this power with that existing in commercial
oils of rosemary and to check if these formulas really contain oils rosemary. This study
consisted of the extraction of the essential oil from the studied plant followed by preliminary
phytochemical tests and then by TLC analyzes to determine exactly the different compounds
that characterize the species and then by the antibacterial study on the plants diluted essential
oils (synthesized and commercial). Phytochemical tests have shown that essential oils contain
many chemicals and active ingredients that give rosemary a wide range of indications : The
TLC of the raw extract shows stains, indicating the presence of flavone, hydroxyflavone,
Dihydroxyflavone, flavanones, methoxyflavones and flavonols ; they are compounds of
paramount importance in the therapeutic effects enjoyed by rosemary. The bacteriological
study on essential oils (extract and commercial) by the process represented on the concentrated
disk of essential oils shows good antibacterial activity on the fixed stem ; the zone of
inhibition is of 08 and 06 mm for Escherischia. coli and 10.09 and 08 mm for Staphylococcus
aureus and 17, 14, 13.11 mm for Klebsiela sp. Essential oils extracted from rosemary from
Algeria will be of some economic interest in the Algerian pharmaceutical industry. The
negative test of commercial rosemary essential oil compared to the positive tests of the
rosemary extract (just 10 mm diameter at concentration D1 for Klebsiella. sp and zero results
at all other concentrations with the other strains including those that reacted to the rosemary
extract tested ) provides information on the counterfeiting that characterises this field.. The
study confirms the interest we must bring to this plant, not only for its characteristics in the
perfume industry, but especially for its undisputed medical virtues.
Description
article
Keywords
Rosmarinus officinalis , extracted essential oil, antibacterial activity, TLC, Commercial essential oil.
Citation
.lakhdar, Mazouz . Comparative study of the antibacterial action of natural and commercial oils of Rosmarinus officinalis L . Algerian Journal of Biosciences . Vol 03. N 02. 30/12/2022. University of Eloued .[Write down the date][Copy the download link ]