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. This procedure rapidly and directly characterizes both the quantity and quality of fat in milk.
Cheong
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FC
Department of Physics and Center for Soft Matter Research, New York University, New York, NY 10003, USA.
Xiao
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K
Grier
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DG
D000818:Animals; D002417:Cattle; D006017:Glycolipids / Q000032:analysis / Q000737:chemistry*; D006023:Glycoproteins / Q000032:analysis / Q000737:chemistry*; D006041:Goats; D006696:Holography; D066292:Lipid Droplets; D018715:Microscopy, Video / Q000379:methods*; D008892:Milk / Q000737:chemistry*; D012031:Refractometry
D006017:Glycolipids; D006023:Glycoproteins; C110367:milk fat globule