UHPLC-PDA-ESI-TOF/MS metabolic profiling of aqueous extracts of Arabica and Robusta Coffee Silverskin: not only natural antioxidants.
Coffee wastes and by-products from coffee industry are a source of contamination and a serious environmental problem, being mainly unutilized, discharged to the environment or burned. This promoted the interest of researchers in the characterization of wastes and by-products as coffee silverskin (CS, the tegument covering the coffee beans) to evaluate the possibility of reusing them.