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Dairy Science Commons

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Full-Text Articles in Dairy Science

A Modified Voges-Proskauer Method Of Determining Diacetyl In Dairy Cultures, Dwain Finkenbiner Jan 1965

A Modified Voges-Proskauer Method Of Determining Diacetyl In Dairy Cultures, Dwain Finkenbiner

Electronic Theses and Dissertations

Dairy scientists have known for a number of years that diacetyl is one of the principle flavor components of butter, buttermilk, and cheese cultures. Of the tests which have been introduced to determine diacetyl, one of the first was the heavy metal gravimetric method. This procedure involved distillation of the diacetyl from the mother substance. The most common derivative formed was nickel dimethylglyoximate. Principle disadvantage of this method were that large amounts of sample were required for steam distillation when the products were low in diacetyl. It was also a time consuming procedure because the steam distillation could take as …


Dairying In Spring Point Township, Cumberland County, Illinois, Robert G. Ferren Jan 1965

Dairying In Spring Point Township, Cumberland County, Illinois, Robert G. Ferren

Masters Theses

No abstract provided.