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Imprint
Measurement of internal egg quality parameters
Project
Project code: MRI-FL-08-4011
Contract period: 01.10.1999
- 31.12.2007
Purpose of research: Experimental development
By application of low resolution 1H nuclear magnetic resonance (NMR) spectroscopy and measurement of the relaxation times T2(1) and T2(2) it is intended to create a reliable, fast, low cost and non invasive method to determine the internal egg quality of standardized eggs (breed, laying period, housing, laying time), which is able to detect chemico-physical changes as well as the growth of microorganisms.
Results
Low resolution 1H NMR spectroscopy is capable of detecting storage dependent changes in eggs. Relaxation time T2(2) shows a significant decline during storage. There exists also a dependency of T2(2) upon the laying cycle of the hens. Because of the variation from egg to egg, T2(2) cannot be used as an absolute indicator for the inner quality of individual eggs. However, the method can be applied for this purpose, if relaxation times of larger egg collectives are taken into consideration.
Results from LR 1H NMR, based on microbially induced physicochemical changes of the egg contents, are comparable to those from standard microbiological analysis making LR 1H NMR an innovative and rapid tool for studying microbial growth in intact shell eggs.
Section overview
Subjects
- Special animal species
- Food Processing
