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Purdue Agricultural Experiment Station, W. Lafayette, Indiana
ABSTRACT
A method for determination of total combined length of dead mold fragments per gram or milligram of butter has been developed.
The procedure consists of dilution of one gram of butter in hot gum solution, spreading a small quantity of this on a glass slide, staining with Newman's stain and examining with low power magnification. The average length of mold filament per field is multiplied by the microscope factor divided by 1000 and results reported in mm. per mgm. of butter.
This quantitative method has been of value in studies to determine the total mold fragment content of butter, buttermilk, wash water and cream.
1 Published with the approval of the Director of the Experiment Station as Journal Series Paper No. 123.
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