Findings of the paper reveal that the natural dyes extracted out of the agri-food industry waste, can be a sustainable alternative to synthetic dyes in developing countries
The recovery of phenols was dependent on the solvent system used. Solvent mixtures have been shown to extract significantly larger amounts of crude material from pepper wastes than the neat solvents
The most efficient solvents for extracting phenols and flavonoids from pepper waste, was around (65–35–0%) for, respectively, acetone–water–ethanol