Sensibilidade de cepas Staphylococcus aureus resistentes a beta-lactâmicos ao óleo essencial de Cymbopogon citratus (D.C.) Stapf

Abstract

- In present days, dairy farming is one of the sectors that shows continuous growth generating high profitability to the country, but it has difficulties, since the herd can be affected by diseases such as mastitis. Mastitis is characterized by the inflammation of the mammary gland causing the fall of animal’s production, and the successive application of antibiotics can be a important reason for multiresistance’s increase and most of times it can’t cure the disease. Studies have started to find alternative solutions for the control of multiresistant microorganisms and the use of essential oils have obtained recognition, highlighting Cymbopogon citratus. Fourteen Staphylococcus aureus strains were used in the disc diffusion test with different concentrations of the oil – 0μl, 30μl, 60μl, 120μl and 240μl.Staphylococcus aureus resistant to beta-lactams were sensitive to the essential oils of Cymbopgon citratus from the concentration of 30 μl / ml. It was observed that the oil in the study presented variation in the capacity of inhibition of growth of strains Staphylococcus aureus grouped in different municipalities, farms, genetic groups and genotypic profiles.