Psidium guajava L.

correlation of antioxidant potential with phytochemical profile

Abstract

Psidium guajava L., belonging to the Myrtaceae family, is popularly known as guava, a species widely found in Brazil. Guava, its fruit, is commonly used in the production of juices, jams, and teas, in addition to its consumption in natura. In folk medicine, preparations obtained from P. guajava have an action against gastrointestinal disorders, such as colic and diarrhea. Another relevant biological activity associated with this species is its antioxidant capacity, due to the considerable content of phenolic compounds metabolized by the guava tree. Thus, the study aimed to describe and relate the antioxidant action of the species P. guajava L. with its respective phytochemical profile. For this, an integrative review of the literature between 2016 and 2021 was carried out using the following databases: Virtual Health Library (BVS), SciELO, and PUBMED. After applying the inclusion and exclusion criteria, a sample of 08 articles was selected, 04 on antioxidant activity and 04 on phytochemical composition described from the phytochemical study of plant derivatives obtained from the species. The antioxidant activity was proven through the quantification of total phenols and total flavonoids by the DPPH, ABTS and FRAP methods. Some derivatives were subjected to mass spectroscopy and high-performance liquid chromatography to determine the phytochemical compounds. Despite the limited number of studies demonstrating the antioxidant action of the plant, the biological potential of P. guajava was evidenced and will serve as a subsidy for further research.