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Leaf fractions of Garcinia brasiliensis were evaluated concerning their antioxidant, antimicrobial, anti inflammatory and cytotoxic properties, and the most active fraction was then fully characterized regarding its phenolic composition using HPLC-DAD-ESI/MSn. The ethyl acetate fraction from partitioning of the methanolic leaf extract revealed a strong antioxidant activity that was comparable to Trolox, the positive control. This fraction was also able to show a significant antimicrobial activity against Gram-positive and Gram-negative bacteria and the fungus Candida albicans. However, the dichloromethane fraction was found to present the highest anti-inflammatory (83 ± 9 µg mL−1) and cytotoxic activities, thus presenting slight toxicity using a non-tumor cell line. Regarding the phenolic profile, the ethyl acetate fraction presented twelve flavonoids, with morelloflavone-7’’-O-glucoside (52.1 ± 0.4 mg g−1) and gardinia biflavonoid 2a glucoside (27.5 ± 0.2 mg g−1) being the major compounds identified. These results indicate that leaves of G. brasiliensis might be a potential source of natural biomolecules for pharmaceutical and medicinal applications.
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Zan, Renato André; Fernandes, Ângela; Jedoz, Stephanie; Oludemi, Taofiq; Calhelha, Ricardo C.; Pires, Tânia C.S.P.; Alves, Maria José; Martins, Roberto Carlos Campos; Barros, Lillian; Ferreira, Isabel C.F.R. (2018) - Bioactive properties and phytochemical assessment of Bacupari-anão (: Garcinia brasiliensis Mart.) leaves native to Rondônia, Brazil. Food and Function. ISSN 2042-6496. 9, p. 5621-5628