*2.2. EOs*

EOs of cinnamon (*Cinnamomum zeylanicum*), marjoram (*Origanum majorana*), and thyme (*Thymus vulgaris*) were purchased from Aromax Natural Products Zrt. (Budapest, Hungary). Their main components, i.e., trans-cinnamaldehyde, terpinen-4-ol, and thymol, respectively, were obtained from Sigma-Aldrich (Munich, Germany). The composition of the oils was determined by GC-MS (Agilent GC: 6850 Series II; MS: 5975C VL MSD; Agilent, Santa Clara, CA, USA) using an Agilent 19091S-433E (Agilent) column at the laboratory of Aromax Natural Products Zrt.
