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Journal of Nutrition Vol. 112 No. 10 October 1982, pp. 1990-1993
Copyright © 1982 by American Society for Nutrition
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Computer Calculation of Zinc(II)-Complex Distribution in Milk

Peter M. May, Gillian L. Smith and David R. Williams

Department of Applied Chemistry, University of Wales Institute of Science and Technology, Cardiff CF1 3NU, Wales, U.K.

Computer simulations were performed to determine the distribution of zinc among some potentially important low-molecular-weight ligands (citrate, glutamate and picolinate) in both human and bovine milk. At high concentrations of picolinate, this ligand forms a neutral complex, which may facilitate intestinal absorption of the metal, but at lower levels of picolinate, zinc-citrate complexes are the predominant low-molecular-weight species.

KEY WORDS: • milk • zinc bioavailability • citrate • glutamate • picolinate

Manuscript received 16 April 1982.




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