Abstract:
This study aims to reveal the antibacterial activity and antioxidant capacity of selected local
banana peels cultivated in Bali. In addition, total flavonoid and phenolic contents determination
was done to investigate the correlation to their activity. Seven kinds of selected banana peels
were used for this study. Extraction was conducted by maceration methods. Antibacterial activity
assay was carried out by well difusion agar, while antioxidant capacity was conducted by DPPH
reduction using galic acid as a standard. The content of total flavonoid and phenolic compounds
was determined by Ultra Violet-visible (Uv-vis) Spectrophotometry.Antibacterial assay on
selected banana peels against Staphylococcus aureusvaried between 11.00 and 14.77 and that of
Escherichia colibetween 9.00 and 13.37 at concentration of 20% (b/v). Meanwhile, the
antioxidant capacity of the peels have a rangefrom 3601.11 to 2523.71 mg GAEAC /kg
extract.The antioxidant capacity and antibacterial activity were positively correlated with the
total flavonoid and phenolic contents. Based on the study, it can be concluded that the banana
peels can be used for infectious medicinesand have antioxidant properties. These findings
suggest that flavonoid and phenolic content could be used as antibacterial and antioxidant agent. |
