Foam-mat drying of bacaba (Oenocarpus bacaba): Process characterization, physicochemical properties, and antioxidant activity

This work studied the foam-mat drying (FMD) of bacaba pulp, evaluating the parameters of foam-forming and the effects of thickness layer (5-15 mm) and temperature (50-70 degrees C) during the drying process. The results showed the need for an emulsifier, in addition to the foaming agent, to obtain a low density and stable foam. The powder showed high content of proteins (15.9 +/- 0.6 %), fibers (49.6 +/- 0.4 %), and lipids (35.6 +/- 0.2 %). The combination of the lowest drying temperature and thickness resulted in a final product with good solubility (37.5 +/- 1.2 %) and a high antioxidant capacity (525 +/-; 13 mu mol TE g(-1)), which suggests a great potential for use in the development of functional products. (C) 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.