Milk Protein Concentration Using Negatively Charged Ultrafiltration Membranes
AbstractIn this work, milk protein concentrate (MPC) was made using wide-pore negatively charged ultrafiltration membranes. The charged membranes were used for a six-fold volume concentration of skim milk and subsequent diafiltration to mimic the industrial MPC process. The charged 100 kDa membranes had at least a four-fold higher permeate flux at the same protein recovery as unmodified 30 kDa membranes, which are currently used in the dairy industry to make MPC. By placing a negative charge on the surface of an ultrafiltration membrane, the negatively charged proteins were rejected by electrostatic repulsion and not simply size-based sieving. Mass balance models of concentration and diafiltration were developed and the calculations matched the experimental observations. This is the first study to use wide-pore charged tangential-flow membranes for MPC manufacturing. Additionally, a unique mass balance model was applied, which accurately predicted experimental results. View Full-Text
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Arunkumar, A.; Etzel, M.R. Milk Protein Concentration Using Negatively Charged Ultrafiltration Membranes. Foods 2018, 7, 134.
Arunkumar A, Etzel MR. Milk Protein Concentration Using Negatively Charged Ultrafiltration Membranes. Foods. 2018; 7(9):134.Chicago/Turabian Style
Arunkumar, Abhiram; Etzel, Mark R. 2018. "Milk Protein Concentration Using Negatively Charged Ultrafiltration Membranes." Foods 7, no. 9: 134.
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