Phytochemical screening and bioactivity of Garcinia parvifolia miq. / Aaron Solibun

The phytochemical compounds screening, antioxidant properties evaluation and vitamin C concentration determination of the crude methanolic extracts from pericarp of takob-akob {Garcinia parvifolia) were investigated. The phytochemical screening of extracts have revealed ten compounds which are terpenoids, flavonoids, carbohydrates, tannins, saponins, reducing sugar, anthraquinones, phytosterols, alkaloids and phenolic compounds while four compounds were not detected which are cardenolides, phenols, phlobatinnins and proteins.The antioxidant activities have been conducted using DPPH assay and the result showed positive relationship between the percentages of DPPH scavenging activity and concentration of the extracts. The result of this study showed that the highest percentage of DPPH scavenging activity was 94.09 % at the concentration of extracts, 2000 pg / ml. Meanwhile, by using titration method, the detected vitamin C content value was 4 g/1 yield. In conclusion, it is conceivable that the G. parvifolia pericarp could be exploited as one of the potential sources for plant-based pharmaceutical products.