The antimicrobial activities of valex (an extract of valonia), the extracts of mimosa bark, gallnut powders, Salvia aucheri var. aucheri and Phlomis bourgei were studied. | Tr. J. of Biology 23 (1999) 241-248 © TÜBİTAK Antimicrobial Activites of the Extracts of Various Plants (valex, mimosa bark, gallnut powders, Salvia sp. and Phlomis sp.) Metin DIĞRAK, Ahmet İLÇİM Department of Biology, Faculty of Arts and Science, Kahramanmaraş Sütçü Imam University, 46045 Kahramanmaraş-TURKEY M. Hakkı ALMA, Selim ŞEN Department of Industrial Eng. of Forestry, Kahramanmaraş Sütçü Imam University Faculty of Forestry, 46100 Kahramanmaraş-TURKEY Received: Abstract: The antimicrobial activities of valex (an extract of valonia), the extracts of mimosa bark, gallnut powders, Salvia aucheri var. aucheri and Phlomis bourgei were studied. The antimicrobial efficiency of the above plants was evaluated according to the disk diffusion method by using Bacillus brevis FMC 3, Bacillus subtilis IMG 22, Bacillus cereus EÜ, Escherichia coli DM, Pseudomanas aeruginosa DSM 50071, Staphylococcus aureus Cowan 1, Listeria monocytogenes A, Micrococcus luteus LA 2971, Klebsiella pneumoniae FMC 5, Mycobacterium smegmatus RUT, Proteus vulgaris FMC 1 bacteria , and Alternaria alternata MDC 97, Penicillium italicum MDC 101, Fusarium equisetii C, and Candida albicans fungi. The findings indcated that mimosa bark extracts having an inhibition zone of 11-31 mm had the maximum antibacterial efficiency, followed by valex, gallnut powders, Salvia aucheri var. aucheri and Phlomis bourgei extracts, respectively. Furthermore, it was found that gallnut powders and the extracts of mimosa barks only, containing high amounts of tannins, showed the antifungal efficiency, However the others did not. Key Words: Valex; Mimosa bark; Gallnut powders; Salvia aucheri var. aucheri; Phlomis bourgei; Antimicrobial activity Bazı Bitki Ekstraktlarının (Akasya kabuğu, palamut ekstraktı, mazı tozu, Salvia sp., ve Pholmis sp.) Antimikrobiyal Aktivitesi Özet: Palamut ekstraktı (valonia ekstraktı), akasya kabuğu, mazı tozu, Salvia aucheri var. aucheri ve Phlomis bourgei ekstraktlarının .
