Journal : J Agric Food Chem
Title : Antifungal chalcones and new caffeic acid esters from Zuccagnia punctata acting against soybean infecting fungi.
Year : 2004
Volume : 52
Issue : 11
First Page : 3297
Last Page : 3300
Authors : Svetaz L, Tapia A, López SN, Furlán RL, Petenatti E, Pioli R, Schmeda-Hirschmann G, Zacchino SA.
Abstract : The crude methanolic extract of Zuccagnia punctata was active toward the fungal pathogens of soybean Phomopsis longicolla and Colletotrichum truncatum. Assay guided fractionation led to the isolation of two chalcones, one flavanone and a new caffeoyl ester derivative as the compounds responsible for the antifungal activity. Another new caffeoyl ester derivative was isolated from the antifungal chloroform extract but proved to be inactive against the soybean infecting fungi up to 50 microg/mL