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oai:www.ideals.illinois.edu:2142/72225 2023-07-11 col_2142_5131 col_2142_14781 com_2142_5130 com_2142_687 com_2142_397

Baianu, Ion C. Lee, Jeonghae Rho 2014-12-17T21:21:47Z 2014-12-17T21:21:47Z 10000-01-01 1993 1993 The multinuclear magnetic relaxation behavior of heart muscle from chicken, pork, and beef is investigated. Nonlinear regression analysis of the $\sp1$H transverse magnetization decay yields the best fit with three exponential components that are likely to correspond to three separate types of water proton compartments in the heart muscle. A deuterium exchange study is undertaken to obtain additional information concerning the chemical exchange of water protons/deuterium within these compartments, and the effects of proton intermolecular dipolar interactions on proton transverse relaxation of water. The $\sp2$H and $\sp $O multinuclear magnetic relaxation measurements are also resolved into multiple relaxation components. A simplified model in terms of pore sizes which represents intercellular, intracellular and trapped water provides a helpful representation of the multiple relaxation of heart muscle. These findings have implications for quality control of meat products by NMR, and indicate the possibility of accurate monitoring of water loss from meat as a result of processing or storage. These results are also likely to influence the analysis and interpretation of MRI data for myocardium since it provides details of the microscopic water distribution in the myocardium which is important to the heart function. Made available in DSpace on 2014-12-17T21:21:47Z (GMT). No. of bitstreams: 1 9329093.pdf: 6031788 bytes, checksum: 332f158cdf86f9e9a339e95e0f6f4a4e (MD5) Previous issue date: 1993 Embargo set by: Seth Robbins for item 72393 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 183 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1993. http://hdl.handle.net/2142/72225 (UMI)AAI9329093 Agriculture, Food Science and Technology Biophysics, Medical Hydration and Water Distribution Studies of Heart Muscle by Nuclear Magnetic Relaxation text Food Science Food Science University of Illinois at Urbana-Champaign Dissertation Ph.D.