Abstract

HURTADO-MANRIQUE, Paola; JURADO TEIXEIRA, Bertha; RAMOS LLICA, Eva  and  CALIXTO COTOS, María. Evaluation of antioxidant activity of the standardized hydroalcoholic extract from juglans Neotropica Diels (peruvian walnut) leaves. Rev. Soc. Quím. Perú [online]. 2015, vol.81, n.3, pp.283-291. ISSN 1810-634X.

Juglans neotropica Diels "peruvian walnut" is a tree that grows in jungle, in areas of montane and montane rain forest whose leaves have antioxidant, astringent, antibacterial and antiseptic properties. The objective was to determine the antioxidant activity of a standardized hydroalcoholic extract of Juglans neotropica Diels leaves. Leaves from Huandoval district, Pallasca province, Ancash Region were used. Standardization analysis included determination of moisture, physicochemical parameters, solubility march, phytochemical screening, and thin layer chromatography; antioxidant activity was determined by the DPPH inhibition assay. In phytochemical screening there was a greater concentration of phenolic compounds and antioxidant activity was at 25 and 35 µg/mL respectively, with an IC 50 of 12.82 µg/mL. In conclusion, the standardized hydroalcoholic extract from Juglans neotropica Diels leaves fulfilled the quality parameters, and showed high antioxidant activity.

Keywords : Juglans neotropica Diels; peruvian walnut.

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