Milk Protein Concentration Using Negatively Charged Ultrafiltration Membranes

Foods
Abhiram Arunkumar, Mark R Etzel

Abstract

In 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.

References

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Mar 10, 2001·The British Journal of Nutrition·R J FitzGerald, H Meisel
Jun 19, 2003·The American Journal of Clinical Nutrition·Bo Lönnerdal
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Dec 7, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Antoine BouchouxGeneviève Gésan-Guiziou
Jul 16, 2014·Journal of Dairy Science·Y Li, M Corredig

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Citations

Apr 16, 2021·Critical Reviews in Food Science and Nutrition·Mohammadreza Khalesi, Richard J FitzGerald

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