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Optimization of experimental parameters for the EPR detection of the ‘cellulosic’ radical in irradiated foodstuffs
Author(s) -
GOODMAN BERNARD A.,
DEIGHTON NIGEL,
GLIDEWELL SHEILA M.
Publication year - 1994
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.1994.tb02043.x
Subject(s) - electron paramagnetic resonance , cellulosic ethanol , food irradiation , microwave , signal (programming language) , irradiation , materials science , microwave power , sensitivity (control systems) , microwave irradiation , nuclear magnetic resonance , chemistry , cellulose , computer science , electronic engineering , telecommunications , physics , nuclear physics , engineering , organic chemistry , programming language
Optimization of the EPR signal from the ‘cellulosic’ radical of irradiated plant materials can be achieved with an incident microwave power of approximately 250 μW. This is lower than previously recommended (0.5–2.0 mW) and results in signal intensities of up to 200% greater amplitude. the use of this recommended power in any future EPR‐based detection system will result in fewer false negatives, greater sensitivity, and is more likely to enforce compliance with existing labelling requirements.