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Skim milk powders with enhanced foaming and steam-frothing properties

Skim milk powders with enhanced foaming and steam-frothing properties The effects of citrate addition to milks on the stability of milk foams formed by two aeration processes, whipping at room temperature and by steam-frothing, were examined. Citrate addition (0.1–0.5 mol added citrate·kg−1 milk solids non-fat) improved the whipping properties of milks reconstituted from conventional low-heat (72 °C for 30 s) and high-heat (85 °C for 30 min) powders. This effect was attributed to the role of citrate in dissociating casein micelles. However, while citrate addition (0.1–0.2 mol added citrate·kg−1 milk solids non-fat) improved the steamfrothing properties of milks reconstituted from conventional low-heat milk powder it did not improve those of milks made from corresponding high-heat milk powders. Similar effects of citrate addition on foaming and stream-frothing properties were obtained when the salts were added to skim milk concentrate prior to drying. The citrated milk powders are alternatives to physical blends of conventional skim milk powders and citrate salts for enhancing the foaming properties of milks at both low and high application temperatures. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Dairy Science & Technology Springer Journals

Skim milk powders with enhanced foaming and steam-frothing properties

Dairy Science & Technology , Volume 88 (1) – May 21, 2011

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References (27)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Springer S+B Media B.V.
Subject
Chemistry; Food Science; Agriculture; Microbiology
ISSN
1958-5586
eISSN
1958-5594
DOI
10.1051/dst:2007012
Publisher site
See Article on Publisher Site

Abstract

The effects of citrate addition to milks on the stability of milk foams formed by two aeration processes, whipping at room temperature and by steam-frothing, were examined. Citrate addition (0.1–0.5 mol added citrate·kg−1 milk solids non-fat) improved the whipping properties of milks reconstituted from conventional low-heat (72 °C for 30 s) and high-heat (85 °C for 30 min) powders. This effect was attributed to the role of citrate in dissociating casein micelles. However, while citrate addition (0.1–0.2 mol added citrate·kg−1 milk solids non-fat) improved the steamfrothing properties of milks reconstituted from conventional low-heat milk powder it did not improve those of milks made from corresponding high-heat milk powders. Similar effects of citrate addition on foaming and stream-frothing properties were obtained when the salts were added to skim milk concentrate prior to drying. The citrated milk powders are alternatives to physical blends of conventional skim milk powders and citrate salts for enhancing the foaming properties of milks at both low and high application temperatures.

Journal

Dairy Science & TechnologySpringer Journals

Published: May 21, 2011

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