The extraction of bioactive molecules as antioxidant has been postulated as one of the most attractive resource recovery, however antioxidants molecules are numerous and very different in terms of chemical structures, sizes, and chemical properties according to their sources and origins. Furthermore, the fact that they are generally present in complex solutions or matrices does not facilitate their fractionation, and sometimes, the antioxidant property comes from the modification of the source such as enzymatic hydrolysis to liberate the molecules of interest. Membrane processes are the main processes used at large scale for the separation of antioxidant molecules. While the main role has been devoted to streams clean-up and fractionation as membranes provide selective barriers that allow for the transport of certain feed components while retaining other components. Membrane technology has been reported to concentrate and/or selectively fractionate bioactive compounds with antioxidant activity from aqueous and alcoholic processing streams of products, by-products, and wastes or from leaves aqueous extracts. When compared with other concentration methods the product is not subjected

Incoming