Pilot-scale production and physicochemical characterisation of spray-dried nanoparticulated whey protein powders
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Date
2021
Authors
Guralnick, Jacob R.
Panthi, Ram Raj
Bot, Francesca
Cenini, Valeria L.
O'Hagan, Barry M. G.
Crowley, Shane V.
O'Mahony, James A.
Journal Title
Journal ISSN
Volume Title
Publisher
John Wiley and Sons Ltd
Published Version
Abstract
Spray-dried whey protein isolate (WPI) powders were prepared at pilot-scale from solutions without heat (WPIUH), heated (WPIH) or heated with calcium (WPIHCa), which were analysed and compared with a control sample (WPIC). WPIC, WPIUH, WPIH and WPIHCa solutions had whey protein denaturation levels of 0.0, 3.2, 64.4 and 74.4%, respectively. Computerised tomography scanning showed that 52.6, 84.0, 74.5 and 41.9% of WPIC, WPIUH, WPIH and WPIHCa powder particles had diameters of ≤30 µm. WPIHCa and WPIH powders were cohesive, while WPIC and WPIUH powders were easy flowing. Marked differences in microstructure were observed between WPIH and WPIHCa. There were no measured differences in wall friction, bulk density or colour.
Description
Keywords
Whey protein , Nanoparticles , Aggregation , Powder , Physical properties
Citation
Guralnick, J. R., Panthi, R. R., Bot, F., Cenini, V. L., O'Hagan, B. M. G., Crowley, S. V. and O'Mahony, J. A. (2021) 'Pilot-scale production and physicochemical characterisation of spray-dried nanoparticulated whey protein powders', International Journal of Dairy Technology, 74, pp. 581-591. doi: 10.1111/1471-0307.12797