Distribution of the Xanthine Oxidase Factor (Molybdenum) in Foods

Abstract
Foods were assayed for available molybdenum by determining the intestinal xanthine oxidase response to the incorporation of the food into an otherwise purified Mo-deficient diet. When the results were compared with the total Mo determined chemically, 50 to 100% of the dietary Mo was usually available for the biological response. Foods considered to be good sources of Mo (arbitrarily containing more than 0.6 p.p.m. of available Mo on a dry weight basis) included: