ANTIMICROBIAL, ANTIBIOFILM, ANTI-QUORUM SENSING AND ANTIOXIDANT ACTIVITIES OF SOME EDIBLE ASTERACEAE MEMBERS

In this study, antimicrobial, antioxidant and anti-quorum sensing activities of S. oleraceus, T. scaturiginosum, T. bithynicum and L. tuberosus were investigated. T. scaturiginosum and T. bithynicum were effective in terms of antimicrobial activity. The highest antibiofilm inhibition was shown by 33.30% aqueous extract of S. oleraceus on P. aeruginosa ATCC 27853. While S. oleraceus aqueous extract showed 35.32% violacein inhibition, T. bithynicum had a zone diameter of 13 mm for quorum sensing inhibition. L. tuberosus ethanol extract was found remarkable with its 52.5% anti-swarming activity. The most effective plant in terms of antioxidant activity was determined as L. tuberosus. This value is IC50 4.36 mg/mL for DPPH and 67.64% for FTC activity. It has been shown that these edible plants may be suitable candidates for reducing microorganismal resistance and using them in the treatment of diseases.