The effects of processing and storage of butter, ice cream, Swiss-type cheese, condensed milk, and dry whole milk powder from milk containing DDT, lindane, and DDT and lindane in combination were studied. The only change in structure occurred to DDT and lindane during drying of the milk into powder. Lindane suppressed the amount of DDT residue in milk when both insecticides were fed together. In general, the finished products other than dry whole milk contained the same amount of insecticide as the raw milk when expressed on a fat basis.

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Author notes

1Published with the approval of the Director of the Purdue Agricultural Experiment Station as Journal Series Paper Number 2284.

2Presented at the 145th National Meeting, American Chemical Society, New York City, September 8–13, 1963.