The biofilm eradication activity of C-10 massoialactone against Staphylococcus aureus

Abstract

C-10 massoaialactone is a major component of stem bark essential oils Massoia aromatica Becc, which has potential as antibacterial and antifungal but antibiofilm activity against S. aureus has never been reported. The discovery of anti-biofilm drug candidates is needed to overcome infections associated with biofilms. This study aims to determine the eradication activity of C-10 massoialactone against S. aureus biofilms. Antibacterial testing and eradication activity of S. aureus biofilms was determined using the microtiter broth method. The effectiveness of C-10 massoilactone against S. aureus biofilm was analyzed by calculating the value of minimum biofilm eradication concentration. The mechanism of action of C-10 massoilactone against S. aureus biofilms was tested using scanning electron microscopy (SEM). C-10 massoilactone 1% gives antibacterial activity of 86.80% ± 0.01 and can eradication S. aureus biofilm by 68.98% ± 0.01 and not much different from the eradication activity of chloramphenicol drug control. The results also provide evidence that C-10 masoaialactone can damage the extracellular polymeric substance (EPS) matrix and S. aureus biofilm morphology. Therefore, C-10 masoaialactone is very potential to be developed as a candidate for a new antibiofilm drug against S. aureus biofilm.