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ISSN : 2456-8643

Title:
ANTIBACTERIAL ACTIVITY OF CINNAMON ESSENTIAL OIL (Cinnamomum cassia) AND CINNAMALDEHYDE ON AVIAN ESCHERICHIA COLI STRAINS

Authors:
Jamila Khribch, Smara Naima , Laghrib Farida , S.Nassik, S.ZRIRA , M. EL HOUADFI , M. Oukessou

Abstract:
The development of bacterial resistance to common antimicrobial agents is a major challenge for actors in the field of human and animal health. This has prompted the search for new antimicrobial agents from a variety of sources, including plants. The present study investigates the antibacterial activity of cinnamon essential oil and its major constituent, the cinnamaldehyde. This activity was evaluated using standard aromatogram technique and the liquid macrodilution technique for MIC and MBC determination using a reference germ test (E. coli ATCC25922) and forty antibiotic resistant E. coli strains isolated from broiler chickens. In a second part of the study, cinnamaldehyde was combined to certain antibiotics and tested for possible synergies. The obtained results have showed, cinnamon essential oil was more active than cinnamaldehyde. The average MIC values obtained with cinnamaldehyde were 0.031% and 0.04% for reference and avian E. coli respectively, and the average MBC value was 0.031% for the reference strain. The bactericidal activity of Cinnamaldehyde against E. coli is close to the time-dependent kind antibiotics against E. coli bacteria. Combinations of Cinnamaldehyde-antibiotics were indifferent against the reference E. coli strain.

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