Fabad Journal of Pharmaceutical Sciences, cilt.28, sa.1, ss.13-17, 2003 (Scopus)
In this study, the diterpenoids, namely, hispanolone, ballonigrine and dehydrohispanolone, in 16 Ballota taxa growing in Turkey have been determined qualitatively by High-performance Liquid Chromatography (HPLC). Analysis was performed on a normal phase column (Zorbax-CN, 5 μm, 250 × 4.6 mm i.d.). The solvent system consisted of n-Hexane-MeOH (98:2, speed gradient). Peaks were detected at 190-360 nm using Photo-diode array (PDA) dedector. The extracts of Ballota acetabulosa, B. pseudodictamnus subsp. lycia, B. cristata, B. inaequidens, B. saxatilis subsp. saxatilis, B. saxatilis subsp. brachyodonta, B. larendana, B. latibracteolata, B. rotundifolia, B. macrodonta, B. nigra subsp. foetida, B. nigra subsp. uncinata and B. antalyense were found to contain the diterpenoids.