We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Electron spin resonance spectra of γ-irradiated...
View graph of relations

« Back

Electron spin resonance spectra of γ-irradiated citrus fruit skins, skin components and stalks.

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>1994
<mark>Journal</mark>International Journal of Food Science and Technology
Number of pages10
<mark>Original language</mark>English


The ESR spectra of the stalks and skins of a number of non-irradiated and γ-irradiated citrus fruits suggest that ESR spectroscopy could be used to establish the irradiation history. Two major spectral changes occur up on irradiation. Two additional features appear and are only observed in irradiated specimens (Features B and D, the latter separated by c. 5.9mT) and these are accompanied by an increase in the intensity of the main central signal (Feature A). Observations on the stability of Features A and D indicate that they arise from different radicals. Experiments on the meso- and exo-carps indicate that Features B and D are located mainly in the former and Feature A mainly in the latter.