Abstract

Satureja montana L. and S. subspicata Vis. (Lamiaceae) are used for centuries in traditional medicine of Balcanic people in the healing of the lymphatic nodule and respiratory system inflammation. In this paper the amount of total phenols and flavonoids (analyzed by UV/Vis spectrophotometry), phenolic compounds profile (analyzed by HPLC), antimicrobial and antioxidant activities were studied in samples collected in seven per species populations of S. montana and S. subspicata in Croatia. Eight phenolic compounds (rutin, quercetin, caffeic, p-coumaric, ellagic, protocatehuic, rosmarinic, and syringic acid) were identified and quantified using HPLC in methanolic and ethanolic extracts. Results showed that both species contained polyphenolics and other antioxidant compounds with chelating and radical-scavenging properties. The extracts prepared from both species showed broad spectrum of antimicrobial activity on in vitro tested microbial species (Staphylococcus aureus, Escherichia coli, Candida albicans, C. dubliniensis, C. krusei, C. glabrata, C. parapsilosis, and Microsporum gypseum).

Keywords: Antimicrobial activity, antioxidant capacity, phenolic compounds, Satureja montana, Satureja subspicata.

Graphical Abstract