CHARACTERISTICS OF ACID WHEY POWDER PARTIALLY DEMINERALISED BY NANOFILTRATION
 
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Pol. J. Food Nutr. Sci. 2006;56(Special issue 1s):87–90
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ABSTRACT
The chemical composition and solubility of acid whey powders obtained from nanofltered and neutralised wheys were studied. The change in the composition and acidity of acid whey powders caused by nanofiltration and neutralisation significantly influenced their solubility. With a decrease in ash content and acidity, the solubility was observed to increase. The correlation was found between ash content (r=0.843) and acidity to insolubility index (r=0.709). The study showed that the location of neutralisation in the technological process of acid whey powder had a significant influence on its properties. More favourable would be to apply acid whey neutralisation after nanofiltration. Diafiltered acid whey powders were characterised by the best properties, even better than those of the control sweet whey powder.
ISSN:1230-0322