Journal Article


James A O'Mahony
Alan L Kelly
Mark A. Fenelon
Heni B. Wijayanti
Noel A. McCarthy
Juliana V. C. Silva
Esther Burlot
Shane V. Crowley


Agriculture & Food Science

behaviour diafiltration end users temperatures microfiltration cold liquid micellar casein concentrate solubility

Rehydration behaviour of spray-dried micellar casein concentrates produced using microfiltration of skim milk at cold or warm temperatures (2018)

Abstract Microfiltration (MF) of skim milk, when combined with diafiltration (DF), facilitates the manufacture of liquid micellar casein concentrate (MCC), which can be spray-dried into high-protein (≥80% protein, dry-basis) powders. MCC powders rehydrate slowly, which is typically considered a defect by end-users. This study compared the impact of cold (<10 °C) or warm (50 °C) MF/DF on the rehydration characteristics of MCC powders (MCCcold and MCCwarm, respectively). The wetting properties of the MCC powders, measured using optical tensiometry, were found to be equivalent. Pronounced differences in dispersion characteristics were measured, and, after 90 min rehydration at 50 °C, liberated casein micelles accounted for only 7.5% of particle volume in MCCwarm compared with 48% in MCCcold. Due to its superior dispersion characteristics, MCCcold yielded 50–60% less sediment during analytical centrifugation experiments. Cold MF/DF may improve the solubility of MCCs by accelerating the release of casein micelles from powder particles during rehydration.
Collections Ireland -> University College Cork -> College of Science, Engineering and Food Science
Ireland -> University College Cork -> Food and Nutritional Sciences - Journal Articles
Ireland -> University College Cork -> Food and Nutritional Sciences

Full list of authors on original publication

James A O'Mahony, Alan L Kelly, Mark A. Fenelon, Heni B. Wijayanti, Noel A. McCarthy, Juliana V. C. Silva, Esther Burlot, Shane V. Crowley

Experts in our system

James A. O'Mahony
Total Publications: 34
Alan L. Kelly
Total Publications: 63
M A Fenelon
Total Publications: 28
Noel McCarthy
Total Publications: 9
Shane V. Crowley
University College Cork
Total Publications: 5