Chromatographic profiles and antimicrobial activity of the essential oils obtained from some species and cultivars of the Mentheae tribe (Lamiaceae)

• Published in: Saudi journal of biological sciences 2021-11, Vol.28 (11), p.6145-6152
• Main Authors: Shanaida, Mariia, Hudz, Nataliia, Białoń, Marietta, Kryvtsowa, Maryna, Svydenko, Liudmyla, Filipska, Anna, Paweł Wieczorek, Piotr
• Format: Article
• Language: English
• Subjects: Antimicrobial effect; Cultivar; Essential oil; GC–MS; Monarda didyma; Original; Salvia sclarea; Thymus genus
• ISSN: 1319-562X; 2213-7106
• DOI: 10.1016/j.sjbs.2021.06.068

The present study was focused on the chemical composition and antimicrobial activity of the essential oils (EsO) obtained from five Lamiaceae representatives grown in the south of Ukraine. Among them are Salvia sclarea L., Monarda didyma (cultivar ‘Cambridge Scarlet’), Thymus pulegioides (cultivar ‘2/6-07’), Thymus vulgaris (cultivar ‘Jalos’), and Thymus serpyllumL. The component analysis of the EsO was carried out by gas chromatography method coupled with mass spectrometry (GC–MS). The antimicrobial properties of the EsO were determined using the agar diffusion test against widespread pathogenic bacterial strains (Staphylococcus aureus, Escherichia coli, Enterococcus faecalis, Streptococcus pyogenes) and opportunisticyeast Candida albicans. The EsO of Thymusserpyllum and Thymus vulgaris (cultivar ‘Jalos’) displayed noteworthy antibacterial properties against a wide spectrum of the microorganisms. These antimicrobial properties could be attributed to the high content of aromatic monoterpenoid thymol (52.56% and 47.33%, respectively). The EsO of Salvia sclarea with the dominance of linalyl acetate (45.51%) and linalool (38.98%) as well as Thymus pulegioides (cultivar ‘2/6-07’) containing α-citral (27.10%) and β-citral (17.11%) demonstrated the strongest antimicrobial effects on typical and clinical strains of Staphylococcus aureus with the inhibition zones in the range of 24.0–31.0 mm. The Salviasclarea EsO demonstrated the most significant effect against clinical strains of Candidaalbicans. In conclusion, the present study revealed the chemical composition of five Lamiaceae species and cultivars grown in the south of Ukraine and considerable antimicrobial activity of the tested EsO, especially against the typical and clinical strains of Staphylococcus aureus and Candidaalbicans. The obtained results could be perspective for applying in the pharmaceutical industry and for the conservation of food and cosmetic products.