Bioactive clerodane diterpenes of giant goldenrod (Solidago gigantea Ait.) root extract

Giant goldenrod (Solidago gigantea Ait.) root extract was screened for bioactive compounds by highperformance thin-layer chromatography (HPTLC), coupled with effect-directed analysis including antibacterial (Bacillus subtilis F1276, B. subtilis subsp. spizizenii, Aliivibrio fischeri and Xanthomonas euvesicatoria), antifungal (Fusarium avenaceum) and enzyme inhibition (acetyl- and butyrylcholinesterases, α- and βglucosidases and α-amylase) assays.