Resumo

SOBRAL-SOUZA, Celestina E et al. Evaluation of the Cytoprotective and Antioxidant Activity of the Extracts of Eugenia Uniflora Lineau e Psidium Sobraleanum Proença & Landrum Against Heavy Metals. Rev. Cienc. Salud [online]. 2014, vol.12, n.3, pp.401-409. ISSN 1692-7273.  https://doi.org/10.12804/revsalud12.03.2014.08.

Objective: Evaluation of antioxidant activity has been an important issue considering its importance in human health. Recent studies show that the use of plants in the form of juices or teas as sources of natural antioxidants with low risk can be used as an aid to the treatment of various diseases. Material and Methods: Evaluation of the antioxidant potential in vitro, extracts of Eugenia uniflora and Psidium sobraleanum, as well as the quantification of phenols and flavonoids present in the extracts. Results: Findings showed a better antioxidant activity for the extract of Eugenia uniflora. In the TBARS test with egg phospholipids, extracts presented a reduction in the basal levels in the lipid peroxidation process; and when the Fe2 + extract was inducted, Psidium sobraleanum proved to be more efficient.. Conclusions: These tests proved that the extracts of leaves of the species Eugenia uniflora and Psidium sobraleanum present antioxidant activity which is directly related to phenolic substances produced in its secondary metabolism.

Palavras-chave : Lipid Peroxidation; Phenolic Compounds; Iron Sulfate; Natural Products.

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