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dc.contributor.advisorYao, Gang, Ph. D.eng
dc.contributor.authorRanasinghesagara, Janaka C.eng
dc.date.issued2008eng
dc.date.submitted2008 Falleng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on March 8, 2010).eng
dc.descriptionThe entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file.eng
dc.descriptionDissertation advisor: Dr. Gang Yao.eng
dc.descriptionVita.eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionPh. D. University of Missouri--Columbia 2008.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Biological engineering.eng
dc.description.abstractWe studied diffuse optical reflectance in two anisotropic biological tissues: high moisture soy extrudates and skeletal muscles. High moisture extrusion of soy proteins can produce healthy alternative protein sources that resemble real meat. Quantitative assessment of fiber formation in such meat analogs is an important quality control in the manufacturing process. We studied light propagation in soy extrudates and developed a non-destructive method to measure fiber formation. The method was successfully implemented in a fast laser scanning system for real time measurement. In addition to fibrous structures, skeletal muscle has a unique repetitive microstructure which plays an important role in light-muscle interaction. We developed an optical model to study the effects of various myofibril morphologies in laser diffraction by single muscle fibers. By incorporating such diffraction effect into a Monte Carlo model, we reproduced the unique reflectance patterns observed in whole skeletal muscles. Our study on 14 steers showed the profiles of diffuse reflectance are subject to the effects of animal breed, muscle type and aging. Overall, optical measurements are promising for characterizing beef samples.eng
dc.format.extentxiv, 117 pageseng
dc.identifier.oclc551787772eng
dc.identifier.urihttp://hdl.handle.net/10355/6629eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.source.originalSubmitted by University of Missouri--Columbia Graduate School.eng
dc.subject.lcshSoyfoodseng
dc.subject.lcshBeef cattleeng
dc.subject.lcshStriated muscleeng
dc.subject.lcshReflectanceeng
dc.titleOptical reflectance in fibrous tissues and skeletal muscleseng
dc.typeThesiseng
thesis.degree.disciplineBiological engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelDoctoraleng
thesis.degree.namePh. D.eng


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