Antioxidant and Anti-cholinesterase Activity of Globularia meridionalis Extracts and Isolated Constituents

作者：Tundis Rosa^*; Bonesi Marco; Menichini Federica; Loizzo Monica R; Conforti Filomena; Statti Giancarlo; Pirisi Filippo M; Menichini Francesco

来源：Natural Product Communications, 2012, 7(8): 1015-1020.

• Globularia meridionalis
• Flavonoids
• Phenylethanoids
• Antioxidant activity
• Anti-cholinesterase activity

The antioxidant and anti-cholinesterase properties of Globularia meridionalis (Podp.) O. Schwarz (Globulariaceae) were investigated. G. meridionalis aerial parts aid roots were extracted with methanol, and the total extract successively partitioned with n-hexane. The methanol fraction of the roots showed the highest antioxidant activity with IC50 values of 8.0 and 2.1 mu g/mL in the DPPH and beta-carotene bleaching tests, respectively. From this fraction, three flavonoids, namely pectolinarigenin 7-O-beta-glucoside, apigenin 7-O-beta-glucoside and luteolin, and two phenylethanoids, namely acteoside and isoacteoside, were isolated. Potential anti-cholinesterase effects were assessed through the acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzymes inhibition assay. The n-hexane fraction of the roots exhibited the highest activity against both AChE and BChE with IC50 values of 65.5 and 70.4 mu g/mL, respectively.

• 出版日期2012-8