Phenolic compounds and antioxidants activity of banana peel extracts: Testing and optimization of enzyme-assisted conditions

Banana processing industry generates a large number of by-products mainly constituted by peel that can be a good source of bioactive polyphenols. Extraction of phenolic compounds using optimum extraction conditions enhances the yield and quality of the desired compounds. Meanwhile, a well-chosen optimization procedure has the ability to reduce the amount of time, solvent, and temperature needed, which will consequently lower the overall process cost. In this study, the optimization of the enzyme-assisted extraction conditions was evaluated for the maximum extraction of phenolic compounds from banana peels using three enzymes viscozyme® L, cellulase, and pectinase. The optimum conditions were achieved using enzyme concentration (0–2%, v/v), extraction time (1–12 hrs), extraction temperature (35–60 °C), and the solute-liquid ratio (1:5–1:30, w/v) at…