Antibacterial and antioxidant activity of essential oils and extracts from costmary (Tanacetum balsamita L.) and tansy (Tanacetum vulgare L.).

The aim of the presented study was to compare Tanacetum balsamita L. (costmary) and Tanacetum vulgareL. (tansy) in terms of the antibacterial and antioxidant activity of essential oils and hydroethanolic extractsin relation with their chemical profile. The investigated species differ as to the chemical compositionand biological activities. The dominant compounds of essential oils, determined by GC–MS, were: -thujone in costmary (84.43%) and trans-chrysanthenyl acetate in tansy (18.39%). Using HPLC-DAD, thechemical composition of phenolic acids and flavonoids were determined. Cichoric acid appeared to be thedominant phenolic compound in both species (3333.9 and 4311.3 mg × 100 g−1, respectively). Essentialoil and extract of costmary was characterized by stronger antibacterial activity (expressed as MIC and MBCvalues) than tansy. In turn, tansy extract was distinguished by higher antioxidant potential (determinedby FRAP and DPPH) in comparison to costmary. According to observed antibacterial and antioxidantactivity, herb of tansy and costmary could be regarded as promising products for pharmaceutical andfood industry as antiseptic and preservative agents.