Iodophors. I. Effect on Flavor of Milk and Other Observations

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Abstract
Iodophors (2-5 ppm) imparted a chemical I-like flavor to skim milk. This off-flavor could also be induced by contamination with iodophor-soaked milking machine inflations and by transmitting sublimed I deposit on bottle closures to milk. Such inflations revealed pronounced antibiosis by the Bacillus subtilus growth test. Iodophor-solution instability was noted by the lessened intensity of yellow and the sublimed-condensate deposit on the bottle closures. Corrosion of stainless steel was common to 5 iodophors used. The pH of iodophor solutions varied with the hardness of water of dilution. Threshold values for I in milk were lower than previously reported.

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