PRESERVATION OF EGGS. I.: TREATMENTS FOR MAINTAINING QUALITY IN SHELL EGGS AT ORDINARY TEMPERATURES

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Abstract
Cultural studies demonstrated the fungicidal value of urea and dimethylol urea and the effectiveness of the vapours of certain volatile solids as mould growth inhibitors. A method for preparing sterile artificial eggs for mould studies was developed.Investigations on 21 treatments for preserving eggs at high temperatures indicated that the best results would be obtained by the following procedure: conditioning with carbon dioxide to lower the pH, treating shell surfaces with a disinfectant to reduce contamination followed by effective sealing, preferably with a substance having properties that would prevent both growth and entrance of contaminants during subsequent storage. Dimethylol urea was the most effective growth inhibitor for micro-organisms and vaseline proved to be the best sealing agent. Satisfactory results were obtained by dipping eggs in polyvinyl alcohol treated with dimethylol urea and by packing oil dipped eggs in moisture resistant bags.

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