Chemical and biological characterization from Condalia microphylla fruits, a native species of Patagonia Argentina

BOERI, P.; PIÑUEL, L.; SHARRY, S.; TOMBARI, A; BARRIO D,

JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST)

TARBIAT MODARES UNIV

Año: 2018

1680-7073

Condalia microphylla Cav. (Rhamnaceae), popularly known as ?piquillin?,is widely distributed in Patagonia. The drupes are consumed as fresh fruits byArgentine communities. The aim of this work was to quantify the nutritionalvalue C. microphylla fruit and the phenolic compounds present and todetermine the functional antioxidant properties in vitro and in vivo.Rutin was the single principal phenolic compound. The extracts contained in-vitroantioxidant activities and total-phenol contents between 1143±112 to 4633±174µg gallic-acid equivalents (GAEs) 100 g-1 dry weight, though norelationship was found between the latter parameter and the antioxidantactivity of the extracts. When zebra-fish larvae were exposed to oxidative stress(2.4% v/v H2O2), aconcentration as low as 1.44 µg of GAEs ml-1 of piquillin-derivedpolyphenols inhibited lipid oxidation by up to 40%. Thus, in view of theseadvantageous functional-food properties and the opportunity to exploit thisPatagonian natural resource, piquillin consumption should be promotedworldwide.