Revisiting the recent applications of nanofiltration in food processing industries: Progress and prognosis

Publication date: Available online 8 January 2018 Source:Trends in Food Science & Technology Author(s): Kaushik Nath, Haresh K. Dave, Tejal M. Patel The use of nanofiltration (NF) in food processing industries has evolved from a novel approach into a reliable and techno-economically attractive standard unit operation. The lower operating pressures compared to reverse osmosis, and unique selectivity of the membranes render NF as a less energy-intensive and eco-friendly downstream operation. NF finds its applications in concentrating, fractionating and/or purifying various edible products from the dilute streams thereby enhancing process efficiency to a great extent. It can significantly reduce levels of dissolved solids, colors, organics, hardness, turbidity, divalent and multivalent ions and facilitate the required desalting of permeate streams. Food-processing industries dealing with fruit-juice, beverage, dairy, sugar, lactic acid, and vegetable oils successfully employ NF in a myriad of applications. It is also used in wastewater treatment, recovery of value added components and solvents from food waste, deacidification and nutritional enrichments of certain food products. The present paper reviews the recent status of NF technology in food industries along with its trends and future potentials in the production of high quality foodstuff. Effects of important physicochemical parameters on the permeate flux, solute rejection and product quality are briefly asse...
Source: Trends in Food Science and Technology - Category: Food Science Source Type: research