Estudos químicos e biológicos de Microgramma vacciniifolia (Langsd. & Fisch.) Copel (Polypodiaceae)

Chemical studies with aerial parts of Microgramma vacciniifolia (Langsd. & Fisch.) Copel. afforded ²-sitosterol, hopan-22-ol, 6-metoxiapinenin-7-O-²-D-allopyranoside and a mixture containing ethyl esters of carboxilic acids. The structures of the coumpounds were elucidated by spectroscopy and GC-MS analysis. The total phenolics contents of the crude extract and fractions were determined by Folin-Ciocalteau method. The antioxidant activity was evaluated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH). The AcOEt fraction showed better activity in DPPH assay (9.9 ± 0.03 µg/mL), and presented also higher contents of the total phenolic (93.60 ± 1.11 µg/mg). Antimicrobial and allelopathic effects of the crude etanolic extract and fractions also were evaluated. In addition, the combination of biological activities was discussed.

Bibliographic Details

Main Authors:	Peres,Marize T. L. P., Simionatto,Euclésio, Hess,Sônia C., Bonani,Vanderléa F. L., Candido,Ana C. S., Castelli,Caroline, Poppi,Nilva R., Honda,Neli K., Cardoso,Cláudia A. L., Faccenda,Odival
Format:	Digital revista
Language:	Portuguese
Published:	Sociedade Brasileira de Química 2009
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000400013
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