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Banana peel is one of the wastes that can be explored for various applications. Cavendish is among the most highly consumed bananas in the world, which implies a high amount of banana peel waste. Our study evaluated the potential of Cavendish banana peels as the source of antioxidant and anti-aging agents. Antioxidant was extracted using three different solvents, i.e., water, ethyl acetate, and methanol. Each extract was then assayed for antioxidant activity in vitro using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The antioxidant and anti-aging activity of the extracts were further evaluated at the cellular level using the yeast Schizosaccharomyces pombe as a model. Our data indicated that the methanol extract of banana peel showed the highest antioxidant activity with an IC50 value of 253.8 µg mL-1 compared to ethyl acetate and water, yet it was considered weak. Interestingly, the methanol extract (600 ppm) showed antioxidant and anti-aging activities at cellular levels in yeast S. pombe. Therefore, this research reveals the potential for developing banana peel methanol extract as a component of pharmaceutical or cosmetic products with antioxidant and anti-aging properties.
Avelina et al. (Wed,) studied this question.