Determination of Orotic Acid in Whey and Modified Whey Products

Abstract
The concentration of orotic acid in dry whey ranged from 64-146 mg/100 g and appeared dependent on whey type. The orotic acid of modified whey products, prepared commercially by electrodialysis, ultrafiltration, gel filtration or polyphosphate precipitation was from 7-124 mg/100 g, which was less than that of dry whey. Whey processing methods apparently do not concentrate orotic acid in whey fractions.

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