Recovery of ascorbic acid, phenolic compounds and carotenoids from acerola by-products: An opportunity for their valorization

Ascorbic acid, phenolic compounds and carotenoids were extracted from acerola (Malpighia emarginata DC.) by-products using gas-expanded liquids (GXLs) based on carbon dioxide expanded ethanol at 40 °C 7 MPa. The generated in the processing of acerola: bagasse (seed peel) non-pomace (from juice clarification step), studied separately. overall extraction yields obtained 3.8 12.9 g/100 g for non-pomace, respectively. acid was not detected extract, while 158.2 mg/gextract found 193.7 mg/g powder. higher concentration ascorbic antioxidant activity extracts. phytochemical profile by LC-Q-TOF-MS/MS showed a number (hydroxycinnamic acids flavonoids) extracts when compared to juice. In addition, GXL promoted pool (lutein ?-carotene), pheophytin chlorophyll derivatives LC-APCI-MS/MS. extracts, rich bioactive compounds, open an opportunity valorization by-products, meeting current demand natural nutraceuticals vitamin C polyphenols.