THE UPTAKE AND DISTRIBUTION OF BROMATE IN GERMINATING BARLEY

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Abstract
Bromate applied to steeped barley enters the grain rapidly, within 4 h of application; it is reduced to bromide as germination proceeds but persists in the endosperm in measurable quantities until kilning. Bromate has not been detected in kilned malt. Examination of lateral sections of grain shows that bromate concentration is highest at the embryo end, lowest in the middle and has an intermediate concentration at the distal end. These results, obtained with selected undamaged grains of both Proctor barley and Nackta (a naked variety), suggest that bromate can enter the grain at the distal end and over the grain surface as well as through the embryo.