ARGENTINIAN MEDICINAL PLANTS AGAINST POSTHARVEST PHYTOPATHOGENICS FUNGI ISOLATED FROM ORANGES, STRAWBERRIES AND PEACHES

DI LIBERTO, M.; SVETAZ, L.; DERITA, M. G.

PharmacologyOnline

SILAE

Año: 2016 vol. SI p. 106 - 107

1827-8620

Continuous and excessive use of synthetic compounds in order to prevent fungal infection in postharvested fruits has caused dangerous consequences not only to the environment but also to human health. In this context, exploring natural sources based on native plant extracts or compounds isolated from them turns out to be of great economic and social importance. In this work, three Argentinean native species with previously reported human antifungal properties (Solidago chilensis Meyen2, Polygonum acuminatum Kunth3,4 and Drimys winterii Forst5), were evaluated against three pathogenic fungi (Penicilium digitatum, Botrytis cinerea and Monilinia fructicola) which strongly affect oranges, strawberries and peaches respectively. S. chilensis, P. acuminatum and D. winterii were collected during the flowering season (March 2014) in Santa Fe province (Argentina) and deposited at the Herbarium FCA-UNL (Arturo Ragonese) with identifying data SF # MD16, MD97 and MD108 respectively. Air-dried aerial parts of each species (100 g) were powdered and successively macerated (3×24 h each) with petroleum ether (H), ethyl acetate (EtOAc) and methanol (MeOH) with mechanical stirring to obtain the corresponding extracts, after filtration and evaporation.