Phenolic compounds, flavonoids and phenolic lipids in native anacardiaceae from northwest Argentina

ARISTIMUÑO FICOSECO, M. E.; SAMPIETRO, D. A.; VATTUONE, M. A.; CATALÁN, C. A. N.

Tafi del Valle

Congreso; XXVII Annual scientific meeting of the Tucuman biology association; 2010

Tucuman biology association

The aim of this work was to establish total contents of phenolic compounds, flavonoids and phenolic lipids in native species of Schinus and Schinopsis from northwestern Argentina. Leaves of Schinus fasciculatus, S. gracilipes, S. molle, Schinopsis haenkeana, and S. lorentzii were sequentially extracted  with dichloromethane (DcM), ethyl acetate (AcEt) and methanol (Met). Extracts were evaporated to dryness. Dry matter was determined and residues were dissolved in Met. Total contents of phenolic compounds (CFTs), flavonoids (Fs), and phenolic lipids (LFs) were determined by colorimetric reactions using Folin Ciocalteu, aluminum chloride and Fast Blue B reagents, respectively. p-coumaric acid, quercetin, and orcinol were used as standards. CFTs of S. haenkeana, S. gracilipes, S. molle, S. fasciculatus, and S. lorentzii participated with 70, 68, 45, 43, and 20% leaf ME (p/p), respectively. In each plant species, contents of Fs were always higher than those of LFs. Met extracted the highest levels of CFTs, Fs and LFs, respectively. Phenolic compounds were found at high levels in ME from leaves of most Anacardiaceae investigated. They may be involved in plant defense against microorganisms.