Milk sample preservative

Details Milk sample preservative Milk sample preservative

A - Human Necessities

01

N

150/14, 99/73, 7

A01N 43/90 (2006.01) A23C 3/08 (2006.01) G01N 1/28 (2006.01) G01N 33/04 (2006.01)

Patent

CA 2008891

An antimicrobial composition for the preservation of milk samples required for analysis. The composition comprises 2- bromo-2-nitropropane-1,3-diol and natamycin, or a compound having substantially the same chemical structure as natamycin, in effective amounts to prevent spoilage of the milk for a period of at least 5 to 10 days. The amount of 2-bromo-2- nitropropane-1,3-diol for a 50 ml milk sample is preferably 6 - 12 mg and the amount of natamycin is preferably 0.3 - 0.6 mg. The composition is preferably employed in the form of a tablet containing a suitable filler and usually other ingredients. In a method of preserving milk samples, the 2- bromo-2-nitropropane-1,3-diol and natamycin may be added separately or simultaneously (e.g. in admixture). The composition and method provide a way of preserving milk samples without the health problems associated with conventional preservatives such as dichromates and without the need to refrigerate the milk.

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