Soluble and lipid-bound calcium and zinc during processing of infant milk formulas
1993
Michel, I. | Lavigne, C. | Desrosiers, T.
Samples were withdrawn during the manufacture of infant formulas to determine steps which may affect soluble and lipid-bound Ca and Zn, which were estimated after centrifugal separation of in vitro digested samples. Pasteurization did not significantly reduce solubility of Ca and Zn. Blends forewarmed at low temperature contained a smaller proportion of soluble Ca than skim milk, but Zn was not affected. Forewarming at high temperature reduced solubility of Ca. The solubility of Ca and Zn was lower in sterilized and spray-dried formulas than in blends forewarmed at low temperature. Though initial Ca and Zn levels were greater in infant formulas than in human milk, percentages of soluble Ca and Zn were not higher.
显示更多 [+] 显示较少 [-]