Tf. Rowe et Kj. Towner, EFFECT OF IRRADIATION ON THE DETECTION OF BACTERIAL-DNA IN CONTAMINATED FOOD SAMPLES BY DNA HYBRIDIZATION, Letters in applied microbiology, 18(3), 1994, pp. 171-173
A membrane-based DNA hybridization technique was used in a model syste
m to examine the effect of irradiation treatment on the detection of b
acterial contamination in foodstuffs. Although hybridization signals w
ere reduced compared with otherwise identical unirradiated food sample
s, artificial contamination levels in excess of 10(5) cfu per test cou
ld be distinguished in 12 of the 13 foods examined following the irrad
iation process. In no case were viable bacteria detected following irr
adiation treatment.