Açaí pulp dehydration by foam-mat drying to produces açaí powder

The foam-mat drying was used as a dehydration method for açaí pulp. types of foaming agents, the influence concentration and whipping time were evaluated foam formation. After choosing agent/additive 2² Factorial Experimental Design, with three central points realized to process conditions. optimized condition verified by desirability function it compared pulp both freeze-dried. Emustab identify an appropriate agent foam. temperature showed significative effects on total anthocyanins moisture, while Concentration interaction Temperature significants lightness. dehydrated equal freeze-dried in terms moisture water activity results, divergent results these parameters. All products differed color