Technical note: Characterizing individual milk fat globules with holographic video microscopy

Technical note: Characterizing individual milk fat globules with holographic video microscopy

We used in-line holography to create images of individual milk fat globules in diluted samples of milk. Analyzing these images with the exact Lorenz-Mie light scattering theory then yields the droplets’ radii with nanometer resolution and their refractive indexes to within one part in a thousand. Th...

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Veröffentlicht in:Journal of dairy science 2009-01, Vol.92 (1), p.95-99
Hauptverfasser: Cheong, F.C., Xiao, K., Grier, D.G.
Format: Artikel
Sprache:eng
Schlagworte:
Animal productions
Animals
Biological and medical sciences
Cattle
diameter
fat globules
Food industries
food quality
Fundamental and applied biological sciences. Psychology
globule
Glycolipids - analysis
Glycolipids - chemistry
Glycoproteins - analysis
Glycoproteins - chemistry
Goats
Holography
image analysis
light scattering
microscopy
Microscopy, Video - methods
Milk - chemistry
Milk and cheese industries. Ice creams
milk composition
milk fat
milk fat percentage
refractive index
Refractometry
Terrestrial animal productions
Vertebrates
video recorders
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Zusammenfassung:We used in-line holography to create images of individual milk fat globules in diluted samples of milk. Analyzing these images with the exact Lorenz-Mie light scattering theory then yields the droplets’ radii with nanometer resolution and their refractive indexes to within one part in a thousand. This procedure rapidly and directly characterizes both the quantity and quality of fat in milk.
ISSN:0022-0302
1525-3198
DOI:10.3168/jds.2008-1361