乳児における市販離乳食からの微量ミネラルの摂取

抄録

To estimate trace mineral intake in Japanese infants dependent to commercial baby foods and human milk, 53 commercial baby food samples (24 samples were for 7 or more mo baby and 29 samples were for 9 or more mo baby) were collected and their iron (Fe), zinc (Zn), copper (Cu), manganese (Mn), selenium (Se) and molybdenum (Mo) concentrations were determined by atomic absorption spectrometry (Fe, Zn, Cu and Mn) or inductively coupled plasma mass spectrometry (Se and Mo). Trace mineral concentrations in baby foods for 7 or more mo baby and 9 or more baby were as follows, respectively (mean SD) : Fe (mg/kcal), 2.36 0.98 and 3.48 3.21 ; Zn (mg/kcal), 2.00 0.93 and 2.37 1.12 ; Cu (mg/kcal), 0.44 0.13 and 0.54 0.31 ; Mn (mg/kcal), 1.03 0.51 and 1.16 0.49 ; Se (μg/kcal), 22.9 21.4 and 15.8 9.1 ; Mo (μg/kcal), 36.6 29.4 and 36.0 30.1. Trace mineral intakes in 6 to 8 mo infants and 9 to 11 mo infants dependent to human milk and commercial baby foods were estimated to be as follows, respectively : Fe (mg/d) 0.66 and 1.76 ; Zn (mg/d), 1.44 and 1.89 ; Cu (mg/d), 0.29 and 0.41 ; Mn (mg/d), 0.17 and 0.64 ; Se (μg/d), 14.1 and 14.9 ; Mo (μg/d), 8.1 and 17.7.