Antimicrobial and Free Radical Scavenging Activities of Some Lamium Species from Turkey

Abstract

In this study the MeOH, CH2Cl2, n-BuOH and H2O extracts of L. eriocephalum subsp. eriocephalum, L. garganicum subsp. laevigatum, L. garganicum subsp. pulchrum, and L. purpureum var. purpureum were tested for their antimicrobial and free radical scavenging activities. Broth Microdilution method and spectrophotometric DPPH method were used to test antimicrobial and free radical scavenging activity, respectively. The CH2Cl2 extracts of all plants showed highest antimicrobial activity. Among the tested extracts the CH2Cl2 extract of L. eriocephalum subsp. eriocephalum is considered as the most active one against all tested bacteria and fungi. The n-BuOH extracts of all studied plants were found to be possess the highest free radical scavenging activity.