is often associated worldwide with foodborne illnesses, and the elimination of biofilms formed by this bacterium from industrial surfaces is very challenging. To date, there have been few attempts to investigate plant oils obtained by recent green technologies, applied against biofilms on usual surfaces of the food industry and bacteria isolated from such environment. Therefore, this study evaluated the activity of seed oil (MOSO), extracted with pressurized -propane, against standard and environmental biofilms. Additionally, a genotypic and phenotypic study of the environmental was proposed. It was found that this bacterium was a MSSA (methicillin-sensitive ), a carrier of and genes that has strong adhesion (OD=1.86 ± 0.19) during biofilm formation. The use of pressurized -propane as a solvent was efficient in obtaining MOSO, achieving a yield of 60.9%. Gas chromatography analyses revealed the presence of a rich source of fatty acids in MOSO, mainly oleic acid (62.47%), behenic acid (10.5%) and palmitic acid (7.32%). On polystyrene surface, MOSO at 0.5% and 1% showed inhibitory and bactericidal activity, respectively, against biofilms. MOSO at 1% allowed a maximum reduction of 2.38 log UFC/cm² of biofilms formed on PVC (polyvinyl chloride) surface. Scanning electron microscopy showed disturbances on the surface of after exposure to MOSO. These unprecedented findings suggest that MOSO extracted with pressurized -propane is potentially capable of inhibiting biofilms of different strains, thus, contributing to microbiological safety during food processing.
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