Effects of Different Reducing Carbohydrate Types on the Physicochemical Characteristics of Infant Formula Food Stored for Special Medical Purposes

Abstract

The formula of food for special medical purpose has a direct impact on physicochemical stability, especially in hot climes and high temperature transport storage environments. An accelerated test (50o C for 7 weeks) was used to analysis the mechanism the physicochemical instability of formula A with lactose and maltodextrin, and formula B with maltodextrin. Deep dents and wrinkles were observed on the surface of the formula B, and more fat globules covered the surface of formula A particles after storage for a long time. Significantly higher amounts of furosine and Nε -carboxymethl-L-lysine (CML) were formed and the loss of available lysine was greater in formula A than in formula B. No significant difference was observed in lipid oxidation indicators between the two formulas. Results of this research demonstrated lactose was more active than maltodextrin and lead to the physicochemical instability. 

Keywords: Food for Special Medical Purpose, physicochemical stability, Maillard reaction, lactose, maltodextrin