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Acta Biológica Colombiana
Print version ISSN 0120-548X
Abstract
FERNANDEZ-RODRIGUEZ, Victoria Estefania and RUIZ-LOPEZ, Mario Alberto. Polyphenol content, antioxidant capacity and toxicity of Solanum ferrugineum (Solanaceae) with medicinal potential. Acta biol.Colomb. [online]. 2021, vol.26, n.3, pp.414-422. Epub Jan 27, 2022. ISSN 0120-548X. https://doi.org/10.15446/abc.v26n3.87032.
Solanum ferrugineum is a plant that grows like a weed. It is a new medicinal plant with great potential as an antioxidant source due to its high polyphenol content. Because of this, polyphenol, flavonoid, proanthocyanidin, and antioxidant capacity in vitro (radical scavenging test by DPPH) were analyzed in leaves, stems, and whole plants from three localities (Las agujas, Nabo Park, and La Primavera Forest) as well as the subchronic toxicity evaluation in leaves. In general, there was a significant difference (p≤ 0.05) in all samples from the three localities. The leaves showed the highest polyphenol content (15.3±0.7 to 22±0.4 mg AGE/g) in samples from the Nabo Park, flavonoid (7.8±0.3 to 13.3±0,3 mg CE/g) and proanthocyanidins (3.4±0.1 to 4.2±0.05 mg CE/g) in La Primavera Forest. Antioxidant capacity was similar across all samples, showing values of 8.3 to 17 μg/mL of IC50. During the toxicology assay, animal specimens showed no signs of toxicity to the doses resulting from the administration of the plant under study so that LD50 > 15 000 mg/kg Bodyweight. The polyphenol content and antioxidant capacity obtained from S. ferruginium leaves, together with its safety, indicate a high pharmacological potential of this plant. Therefore, it is important to carry out studies of its phenolic compounds before being used in pharmacology.
Keywords : antioxidants; flavonoids; harmlessness; proanthocyanidin.