An overview of the ellagic acid and proanthocyanidins' polyphenols from cambuci (Campomanesia Phaea Berg): Myrtaceae's family

Cambuci (Campomanesia phaea Berg.) is a native fruit to the Atlantic Forest biome of Brazil with several bioactive compounds, ascorbic acid, phenolic compounds, volatile compounds, tannins, and carotenoids and it is used mainly to produce jellies, ice cream, juices, and alcoholic beverages. This review and bibliometric analysis establish the progress, trends, and perspectives of research on this fruit. The results show an increase in publications is related to the emergence of this new research and demonstrate the potential growth of cambuci in different studies. Between 2003 and 2022, 153 articles and 22 reviews related to cambuci were published. The bibliometric analysis revealed that the main research area was Agricultural and Biological Sciences, and the main country producing research on the cambuci fruit was Brazil, with 118 articles published. Given that most publications are associated with Brazil, the foremost institutions dedicated to cambuci research are also Brazilian. The University of Sao Paulo spearheads the list of affiliations and comprises eight other Brazilian organizations, including seven universities and one research institution. The author's keywords revealed that phenolic compounds, antioxidant capacity, flavonoids, antioxidant activity, bioactive compounds, and osmotic dehydration are motor themes in cambuci research. Additionally, ellagic acid is a bioactive phenolic compound in tannins, and proanthocyanidins are compounds of great relevance in cambuci and have great benefit for human health with antibacterial, antifungal, antiviral, anti-inflammatory, antidiabetic, gastroprotective, and antidepressant activity. In conclusion, the review establishes that cambuci is an interesting source for its application in the food and pharmaceutical industries.