Johnson, AE, Sidwick, KL, Pirgozliev, VR, Edge, A and Thompson, DF (2020) The Effect of Storage Temperature on the Metabolic Profiles Derived from Chicken Eggs. Food Control, 109. 106930 -106930.

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Revised - The effect of storage temperature on the metabolic profiles.docx - Accepted Version
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Abstract

Metabonomic profiling, using High Performance Liquid Chromatography Quadrupole Time-of-Flight Mass Spectrometry (HPLC-Q-ToF-MS), was adopted in this study to uncover differences in the small molecule profiles of egg yolks, between two sets of six eggs that were stored at 5°C and 23°C for five weeks. Choline, a compound that has previously been shown to have potential use as a biomarker of egg age, was observed to have a significantly lower abundance in the yolks of eggs that were stored at 5°C for five weeks compared to eggs stored at 23°C for the same length of time. A follow-up targeted study observed that the previously discovered trend of increasing choline concentration in egg yolk, with increasing egg age, is not repeatable when the eggs are stored at 5°C rather than 23°C. It concluded that, by refrigerating eggs at 5°C, the accurate prediction of egg age using choline as a biomarker can be prevented.

Item Type: Article
Additional Information: This is the accepted author manuscript (AAM). The final published version (version of record) is available online via Elsevier at https://doi.org/10.1016/j.foodcont.2019.106930 - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: Metabonomics, Chromatography, Mass spectrometry, Eggs, Fraud, Choline
Subjects: S Agriculture > S Agriculture (General)
Depositing User: Symplectic
Date Deposited: 16 Dec 2019 15:18
Last Modified: 09 Jan 2020 16:45
URI: http://eprints.keele.ac.uk/id/eprint/7415

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