Evolution of free mono- and di-saccharide content of milk-based formula powder during storage

HPLC-RI was used to monitor saccharide evolution during the shelf-life of two types of milk-based formulae powders supplemented with microencapsulated long-chain polyunsaturated fatty acids (LC-PUFA): infant formula and formula for pregnant and/or lactating women. In addition, these powders were subjected to sensory evaluation. The powders were stored at 25, 37 and 47 °C. Lactose was detected in the infant formula (63 g/100 g), while in the formula for pregnant women, the following were found: lactose (25 g/100 g), fructose (15.8 g/100 g), sucrose (9.28 g/100 g) and lactulose (0.9 g/100 g). Microencapsulated LC-PUFA supplementation of milk-based formula powders did not affect sugar changes.