Distribution of optical scattering properties in four beef muscles
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Abstract
The objective of this study was to determine the influence of the mechanisms regulating tenderness on optical scattering properties of beef. Optical scattering properties of four beef muscles with different amounts of connective tissue and varying sarcomere lengths across a range of aging periods were determined. The optical scattering coefficient of beef muscles were measured based on a diffusive fitting of spatially resolved reflectance measurements. As a reference to beef tenderness, Warner-Bratzler shear forces were also measured in this study. Variation in muscle composition resulted in a range of optical scattering properties across muscles. Our results implied that connective tissue and sarcomere structure have different effects on the optical scattering properties of muscle. In addition, proteolysis of muscle proteins significantly changes the optical scattering properties. These results provide useful information in understanding the originations of optical scattering in beef.
Keywords
Beef Tenderness Aging Fiber optics Optical scatteringNotes
Acknowledgement
This project was funded in part by the National Research Initiative of the USDA Cooperative State Research, Education and Extension Service under grant number 2006-35503-17619.
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