POTENTIAL OF FREEZE DRYING FOR REMOVAL OF CHLORINATED HYDROCARBON INSECTICIDES FROM EGGS

摘要

SUMMARY–The potential of freeze drying for residue removal from whole eggs and egg yolks was evaluated. Significant pesticide reductions of 79 for lindane, 37 for dieldrin, 57 for p,p′‐DDT and 31 for o,p′‐DDT‐DDD occurred in freeze‐dried whole eggs. Half the lindane was removed by freeze drying egg yolk, but only minimal removal occurred for the other pesticides. Approximately a 20 increase in p,p′‐DDE occurred in both the freeze‐dried whole eggs and yolks. The success of freeze drying for pesticide removal from eggs appeared related to both the vapor pressure of the pesticide and the amount of contaminati