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Proceedings Paper

Optical diffusion property of chicken tissue
Author(s): Patricia S. Schneider; Alex Flamholz; Peter K. Wong; David H. Lieberman; Tak D. Cheung; Harriet Itoka; Troy Minott; Janie Quizhpi; Jacquelin Rodriguez
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Paper Abstract

Chicken tissue acts as a turbid medium in optical wavelength. Optical characterization data of fresh chicken dark and white meat were studied using the theory of light diffusion. The gaussian-like transmission profile was used to determine the transport mean free path and absorption. The refractive index, a fundamental parameter, was extracted via transmission correlation function analysis without using index-matching fluid. The variation in refractive index also produced various small shifts in the oscillatory feature of the intensity spatial correlation function at distance shorter than the transport mean free path. The optical system was calibrated with porous silicate slabs containing different water contents and also with a solid alumina slab. The result suggested that the selective scattering/absorption of myoglobin and mitochondria in the dark tissues is consistent with the transmission data. The refractive index was similar for dark and white tissues at the He-Ne wavelength and suggested that the index could serve as a marker for quality control. Application to chicken lunchmeat samples revealed that higher protein and lower carbohydrate would shift the correlation toward smaller distance. The pure fat refractive index was different from that of the meat tissue. Application of refractive index as a fat marker is also discussed

Paper Details

Date Published: 19 November 2004
PDF: 9 pages
Proc. SPIE 5587, Nondestructive Sensing for Food Safety, Quality, and Natural Resources, (19 November 2004); doi: 10.1117/12.571661
Show Author Affiliations
Patricia S. Schneider, Queensborough Community College/CUNY (United States)
Alex Flamholz, Queensborough Community College/CUNY (United States)
Peter K. Wong, Queensborough Community College/CUNY (United States)
David H. Lieberman, Queensborough Community College/CUNY (United States)
Tak D. Cheung, Queensborough Community College/CUNY (United States)
Harriet Itoka, Queensborough Community College/CUNY (United States)
Troy Minott, Queensborough Community College/CUNY (United States)
Janie Quizhpi, Queensborough Community College/CUNY (United States)
Jacquelin Rodriguez, Queensborough Community College/CUNY (United States)


Published in SPIE Proceedings Vol. 5587:
Nondestructive Sensing for Food Safety, Quality, and Natural Resources
Yud-Ren Chen; Shu-I Tu, Editor(s)

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