PHYTOCHEMICAL SCREENING AND QUANTIFICATION OF ANTIOXIDANT CAPACITY IN EXTRACTS OF Morrenia odorata

CARLA ANTONELLA BURGOS

SAN MIGUEL DE TUCUMAN

Jornada; XXXV JORNADAS DE BIOLOGIA; 2019

Morrenia odorata Lindl. (Asclepiadaceae), known as doca or tasi, is a vine used for medicinalpurposes in the NOA. It is geographically located in the North of Argentina, Brazil, Paraguay and Uruguay. It is ausual food of the Tobas, Pilagas and Wichis and its root is used in folk medicine as a galactogen. Objective: Todetermine the components present in extracts of Morrenia odorata by phytochemical screening and quantify theirantioxidant capacity. Materials and methods: the fruit comes from Burruyacú, Tucumán. The trials to determine thephytochemical screening were: total phenols, flavonoids, anthocyanins, tannins, triterpenes and/or steroids, saponins,cardiotonic, free anthracenes, alkaloids, volatile coumarins. The antioxidant capacity was determined byquantification of phenols, anthocyanins, flavonoids, reduction of molybdenum Mo+6 to Mo+5 and depuration of ABTSradical. Results: The results of the tests showed the presence of the components studied. The antioxidant capacitywas determined by total phenols 150.19mg EAG/100g e.s., RSD: 1.59. Anthocyanins 116.60mg EM3Glu/100g e.s.,RSD: 1.29. Flavonoids 55.80mg EQ/100g e.s., RSD: 1.10. Reduction of molybdenum Mo+6 to Mo+5: 26.41mg EAA/ge.s., RSD: 1.14. Depuration of the ABTS radical: 95.03 IC50 (μg/mL), RSD: 1.59. Conclusions: The analysis allowedus to determine that the extracts of Morrenia odorata present a moderate antioxidant capacity, with potential for usewith nutritional or pharmaceutical applications.