KINETICS OF WATER VAPOUR ADSORPTION AND CAKING OF WHEY POWDER

The study was aimed at investigating caking of sweet whey powder and whey demineralized as a result of water vapor adsorption in respect of their sorption capacity. The analysis of the course of kinetic curves demonstrated that sweet whey was characterised by a higher capacity and rate of water vapour adsorption as compared to the demineralized whey. During storage at relative humidity of RH>0.43 the powders were subject to caking once the material reached water activity (a_w) of 0.3-0.4, yet the sticking of powder particles proceeded faster in the case of sweet whey.

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ISSN:

1230-0322

Digitalizacja artykułów publikowanych w kwartalniku PJFNS w celu zapewnienia otwartego dostępu do nich przez sieć Internet - zadanie finansowane w ramach umowy 607/P-DUN/2019 ze środków Ministra Nauki i Szkolnictwa Wyższego przeznaczonych na działalność upowszechniającą naukę.

Digitalization of scientific manuscripts published in PJFNS quarterly to enable open access to them in the Internet – task financed under the agreement no. 607/P-DUN/2019 from funds of the Minister of Science and Higher Education intended for science dissemination activities.

Utrzymanie procedur zabezpieczających oryginalność artykułów naukowych publikowanych w kwartalniku PJFNS - zadanie finansowane w ramach umowy 607/P-DUN/2019 ze środków Ministra Nauki i Szkolnictwa Wyższego przeznaczonych na działalność upowszechniającą naukę.

Maintenance of procedures assuring originality of scientific manuscripts published in PJFNS quarterly – task financed under the agreement no. 607/P-DUN/2019 from funds of the Minister of Science and Higher Education intended for science dissemination activities.