Premium
High‐resolution NMR of irradiated almonds
Author(s) -
Ribó Josep M.,
Crusats Joaquim,
ElHachemi Zoubir,
Feliz Miguel,
SanchezBel Paloma,
Romojaro Félix
Publication year - 2004
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-004-1017-1
Subject(s) - irradiation , high resolution , chemistry , nuclear magnetic resonance spectroscopy , spectroscopy , solid state , resolution (logic) , analytical chemistry (journal) , nuclear magnetic resonance , materials science , radiochemistry , nuclear chemistry , chromatography , stereochemistry , computer science , nuclear physics , geology , physics , remote sensing , quantum mechanics , artificial intelligence
Electron beam‐irradiated peeled almonds (dose rate <5kGy) were subjected to a sensory test, ESR, and solid state 1 H and 13 C NMR spectroscopy using an improved magicangle probe. In the sensory test, changes were detected only for high radiation doses, and these were similar to those produced by aging. ESR detected significant differences between irradiated and nonirradiated samples, although these differences in free radical content tended to disappear with aging. Slightly higher DG content was detected in the irradiated sample by high‐resolution solid‐state NMR spectra.