Whey fractionation through the membrane separation process |
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| Authors: | Camila Baldasso Lídia K. Lazzari Bianca S. Scopel Ligia D.F. Marczak Isabel C. Tessaro |
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| Affiliation: | 1. Engineering of Processes and Technology Post-Graduate Program, University of Caxias do Sul, Caxias do Sul, Brazilcbaldasso@gmail.com;3. Engineering of Processes and Technology Post-Graduate Program, University of Caxias do Sul, Caxias do Sul, Brazil;4. Membrane Separation Laboratory, Federal University of Rio Grande do Sul, Porto Alegre, Brazil |
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| Abstract: | The aim of this work is to improve the utilisation of fractions of whey through membrane separation processes. From a solution of whey treated by ultrafiltration (UF) associated with diafiltration (DF), two streams were obtained: a concentrate and a permeate. In this process, a purified protein concentrate with about 70% of protein was obtained. Permeate was treated by electrodialysis (ED) to obtain a fraction rich in lactose (90%). The final effluent was treated by reverse osmosis (RO) in order to recover water free of salts. RO made it possible to recover 50% water and retain 85% of the salts. |
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| Keywords: | Whey ultrafiltration electrodialysis reverse osmosis |
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