Antioxidant potential of Spondias mombin L. leaf extract in 70% ethanol
Keywords:
antioxidant, Spondias mombin L., reducing power, oxidation index, ORAC indexAbstract
Introduction: the species Spondias mombin L. is a plant that grows in Cuba, and to which a considerable number of ethnopharmacological applications and high antioxidant power are reported. However, most of these reports are oriented to the fruit, which stands out for its nutritional value.
Objective: to evaluate the antioxidant activity of an extract of Spondias mombin L. leaves in 70% ethanol.
Method: the antioxidant activity was evaluated by six different methods: determination of the oxidation index, reducing power, inhibition of DPPH and ABTS radicals, hydrogen peroxide reducing capacity and oxygen radical neutralization capacity. Concentrations from 1000 to 62.5 µg/mL were evaluated, prepared from the value of total solids determined.
Results: for the oxidation index, concentrations of 250 µg/mL were sufficient to decolorize the permanganate solution in the same period of time as the quercetin standard. However, the IC50 calculated for the reducing power, the inhibition of the DPPH radical and ABTS were higher than the ascorbic acid standard with values of 362.33; 190.34 and 241.88 µg/mL, respectively.
Conclusions: the extract of leaves of Spondias mombin L. in 70% ethanol presents a high antioxidant action in the six experimental models tested, even though in most cases, with lower values than the reference substance used. These results, together with the structural diversity of metabolites present in it, highlight its value as a potential natural antioxidant.
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