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A xanthine oxidase microtest for the determination of cows' milk added to goats' milk

A xanthine oxidase microtest for the determination of cows' milk added to goats' milk

Lait 59(583/584): 117-124

The method is based on the high content of xanthine oxidase (XO) in cows' milk compared with goats' milk. Samples of milk are renneted and heated at 38-40 deg C; 100 mu l whey are introduced into cups (containing a dried preparation of 2 mM xanthine in 0.1 M phosphate buffer pH 7.5) on an Api Zym plate.

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Accession: 000589141

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