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Influence of Fat Particle Size on Light Scattering Properties in Milk Quality Testing

In the field of milk quality testing, the technology of the ratio of scattered intensity to transmitted intensity has become a hot topic. In general, the particle size of fat globules after homogenizing is supposed to be the same. In fact, there is still the particle size distribution. The image processing technique is used for processing and analyzing the image of milk fat, in this paper. The results show that the particle size distribution exists in the homogenized milk fat solution. The results of calculating the radiation characteristics show that, the scattering properties and the attenuation properties have a significant change, and the absorption properties changes slightly, when fat particle size changes. And when the milk fat volume is 3.3%, the influence of absorption properties of light scattering properties can be ignored. When the wavelength is 1333nm, the scattering factor of the fat globules (D>3.0μm) will produce the largest deviation with 1.94. This paper will have important significance for calculating the scattering properties of milk fat.