Perfil de triacilgliceroles y porcentaje de ácido palmítico en la posición sn-2 en sustitutos de leche materna

the aim of this study was to analyze the percentage of palmitic acid at sn-2 position on triacylglycerols in infant formulas. we studied 6 infant formulas in the argentinean market that are used as breast-milk substitutes during the frst six months after delivery: 2 formulas with vegetable oils as basic source of lipids (f1, f2); 1 formula with milk fat and vegetable oils (f3); 1 formula with structured lipids and vegetable oils (f4); 2 formulas for pre-term infants, one with milk fat and other oils (f5), and the other with vegetable oils (f6). results showed that f1, f2, f3 and f4 presented 14.6%, 14.8%, 48.1% and 44.5%, respectively, of palmitic acid at sn-2 position, whereas formulas f5 and f6 had 49.5% and 14.6%, respectively, of palmitic acid at sn-2 position. milk-based infant formulas had the highest concentration of palmitic acid at sn-2 position.