| Summary: | Antiradical
activity of essential oils of korean mint (Agastache
rugosa (Fisch. et Mey)), blue giant hyssop (Agastache foeniculum (Pursh) Kuntze),
hyssop (Hyssopus officinalis L.),
lavander (Lavandula angustifolia L.),
peppermint (Mentha piperita L.),
lemon mint (Mentha piperita var. citrata (Ehrh.) Briq), monarda (Monarda fistulosa L.), oregano (Origanum vulgare L.), common sage (Salvia officinalis L.), clary (Salvia sclarea L.), and winter savory (Satureja montana L.) cultivated in the
Central Botanical Garden of NAS of Belarus was investigated in the reaction
with the cation-radicals of 2,2-azino-bis(3-ethylbenzothiazoline-6-sulphonic
acid) (ABTS+·).
The most pronounced antiradical activity was observed for the essential oils
with a high content of phenolic compounds: winter savory and monarda.
Antiradical properties of the essential oils and individual phenolic and
terpene compounds (eugenol, carvacrol, thymol, citral, (+)-pulegone) in the
reaction with ABTS+·
significantly differ in aqueous solutions and ethanol-water mixtures.
Нigh antibacterial activity of selected components of essential oils from
the Lamiaceae plants, carvacrol,
citral, and linalool, towards test organisms Sarcina lutea, Esherichia coli, Staphylococcus saprophyticus,
Pseudomonas fluorescens, Bacillus megaterium, Pseudomonas putida was shown.
The antibacterial activity of enantiomers of pinene and limonene was
determined. The dextrorotary isomer of α-pinene possesses a significantly
higher level of activity as compared with the levorotary one. S-(-)-limonene
proves itself as a more active antimicrobial component towards Sarcina lutea and Staphylococcus saprophyticus than R-(+)-limonene. Both enantiomers
show comparable activity towards Esherichia
coli. Due to the high antibacterial activity the essential oils from Satureja montana and Monarda fistulosa can be considered as
effective antibacterial agents.
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