A modified cyclone stickiness test for characterizing food powders

Intipunya, P., Shrestha, A., Howes, T. and Bhandari, B. (2009) A modified cyclone stickiness test for characterizing food powders. Journal of Food Engineering, 94 3-4: 300-306.


Author Intipunya, P.
Shrestha, A.
Howes, T.
Bhandari, B.
Title A modified cyclone stickiness test for characterizing food powders
Journal name Journal of Food Engineering   Check publisher's open access policy
ISSN 0260-8774
Publication date 2009-10
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.jfoodeng.2009.03.024
Volume 94
Issue 3-4
Start page 300
End page 306
Total pages 7
Editor Hoshalli Ramaswamy
Judith Evans
R Paul Singh
Place of publication United Kingdom
Publisher Elsevier
Collection year 2010
Language eng
Subject C1
829999 Plant Production and Plant Primary Products not elsewhere classified
090802 Food Engineering
Abstract A cyclone stickiness test device from a preliminary work was modified and used for characterizing stickiness behaviour of food powders. This test device employed the principle of particle dynamics in cyclone section of a spray dryer. The device was more compacted and consisted of temperature–humidity controlled air generator and cyclone test chamber. Characteristic temperature–humidity curves were determined and served as the maximum test conditions. Skim milk powder was used as a model for stickiness testing. The sample was subjected to various air conditions in the cyclone and stickiness conditions were determined. Surface moisture content and glass transition temperature at sticky point were also analysed. It was found that as the particle surface temperature increased humidity at which stickiness occurred decreased. Stickiness curve was drawn to separate between sticky and non-sticky conditions. The curve of glass transition temperature vs equilibrium surface moisture content at sticky points was obtained. It was found that the sticky curve laid at 11.4 °C above the glass transition temperature line.
Keyword Surface stickiness
Glass transition
Food powders
Spray drying
Skim Milk Powder
Elevated-temperatures
Dairy powders
Particle-gun
Sorption
Equilibrium
Isotherm
Caking
Q-Index Code C1
Q-Index Status Confirmed Code

 
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Created: Fri, 04 Sep 2009, 10:27:33 EST