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International Journal of Dairy Science
  Year: 2017 | Volume: 12 | Issue: 2 | Page No.: 149-154
DOI: 10.3923/ijds.2017.149.154
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Physical Properties of Nonfat Dry Milk and Skim Milk Powder

A.K. Abdalla, K. Smith and J. Lucey

Background: Measuring of particle size, particle size distribution, viscosity and colour of powder is essential as it is directly related to powder behaviour and physical properties. Materials and Methods: In this study, physical quality parameters of nonfat dry milk (NFDM) and skim milk powder (SMP) including, particle size, particle size distribution at diameters d10, d50 and d90 in a cumulative size distribution, colour and viscosity were determined. Low, medium and high heat NFDM/SMP samples from US domestic producers were utilized. Results: Original powder samples had significant variations in lightness value L* (93.85-96.37) as well as b* value (12.32-17.99) based on the product source. The particle size in volume weighted mean, D [4, 3] of milk powders showed significant variations with a range of 29.32-94.24 μm. Significant differences in the viscosity of reconstituted milk were found with high heat treated powders having greater viscosity. Conclusion: Differences were noted between processors indicating differences in processing conditions between manufacturers, rather than the actual type of milk powder product.
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How to cite this article:

A.K. Abdalla, K. Smith and J. Lucey, 2017. Physical Properties of Nonfat Dry Milk and Skim Milk Powder. International Journal of Dairy Science, 12: 149-154.

DOI: 10.3923/ijds.2017.149.154






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