Effect of emulsion droplet size on foaming properties of milk fat emulsions

Truong, Tuyen, Bansal, Nidhi and Bhandari, Bhesh (2014) Effect of emulsion droplet size on foaming properties of milk fat emulsions. Food and Bioprocess Technology, 7 12: 3416-3428. doi:10.1007/s11947-014-1352-4

Author Truong, Tuyen
Bansal, Nidhi
Bhandari, Bhesh
Title Effect of emulsion droplet size on foaming properties of milk fat emulsions
Journal name Food and Bioprocess Technology   Check publisher's open access policy
ISSN 1935-5130
Publication date 2014-06-15
Year available 2014
Sub-type Article (original research)
DOI 10.1007/s11947-014-1352-4
Open Access Status
Volume 7
Issue 12
Start page 3416
End page 3428
Total pages 13
Place of publication New York, NY, United States
Publisher Springer New York
Collection year 2015
Language eng
Abstract Foamability and foam stability of dairy-based emulsions, as a function of emulsion droplet size ranging from micron- to nanometre-scale, were investigated. Fat phase (10 % w/w of anhydrous milk fat, stearin or olein fraction) was mixed with 2 % w/w protein solution (sodium caseinate or whey protein concentrate) and homogenised at 3, 10 and 35 MPa to obtain emulsions having particle sizes of about 1.20, 0.60 and 0.20 μm, respectively. The emulsions were cooled down and aged at 4 °C for 48 h to promote crystallisation. No fat coalescence was observed in any of the emulsions, as particle size distribution remained the same upon aging and whipping. It was shown that the smaller the particle size, the higher was the apparent viscosity and the lower was the solid fat content. Higher solid fat content tended to yield better foamability and foam stability. Destabilisation of air cells happened fastest with nanosized fat particles, resulting in shorter half-life of foam.
Keyword Emulsion
Milk fat
Particle size
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2015 Collection
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 2 times in Scopus Article | Citations
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