Physicochemical Properties of Liquid Infant Formula Stored at Different Temperatures

Abstract

Changes in the physicochemical properties of ready-to-feed liquid infant formula (LIF) stored at different temperatures (10, 20, 30, and 40°C) for 6 mon, focusing on 5-hydroxymethylfurfural (HMF) content, color, pH, fat globule size distribution, and rheological properties were determined. The HMF content increased with storage time, and LIF stored at 40°C had a higher HMF content than that of LIF stored at 10°C. The lightness (L*) decreased while redness (a*) and yellowness (b*) increased with increasing HMF content. The fat globule size and pH of LIF stored at 10°C did not change. However, in the case of LIF stored at 30°C and 40°C, the fat globule size increased and the pH decreased during storage for 6 mon. LIF stored at 40°C had a higher apparent viscosity (ηa,10) than that of LIF stored at 10°C, and the shear-thinning behavior of LIF stored at higher temperature was stronger than that of LIF stored at low temperature. The physicochemical changes of LIF during storage were accelerated by Maillard reaction (MR) at higher storage temperatures. Therefore, even if LIF is aseptically manufactured, we recommend that sterilized LIF should be stored at low temperature in order to minimize quality changes during storage.

Feasibility study and optimization of infant formula production using a mixture of camel milk and cow milk

“…The pH of the samples was measured by the pH meter (766 Calimatic model, knick, Germany) at 20 °C (Won Seo et al, 2018).…”

“…The factors L* (dark and light), a* (red and green) and b* (yellow and blue) were measured. All measurements were performed in triplicate for each sample (Won Seo et al, 2018).…”

Development of Pretreatment Method for Analysis of Vitamin B12 in Cereal Infant Formula using Immunoaffinity Chromatography and High-Performance Liquid Chromatography

“…However, information on the extraction of vitamin B 12 from powdered milk is very limited. Especially, powdered milk add starch as well as protein and/or fat to improve its nutrition value ( Seo et al, 2018 ). The presence of these additional components renders the analysis of vitamin B 12 extremely difficult ( Bito et al, 2016 ; Lee et al, 2015 ).…”

Profiling of microbiota in liquid baby formula consumed with an artificial nipple

“…From these findings, oral bacteria, e.g., Streptococcus, Gemella and Rothia, were found to transfer into the liquid baby formula through artificial nipples, and the bacterial composition in the remaining liquid baby formula was found to resemble that of human saliva. The bacterial levels were similar between immediately after drinking and when stored at 4°C for 3 h, suggesting that the remaining liquid baby formula may be preserved in a refrigerator for a specified amount of time.Liquid baby formula is ready-to-use and safe for infants, and is widely used in many countries (6,14) other than in Japan. Upon natural disasters, liquid baby formula has been well received as part of overseas relief supplies to Japan.…”

“…Liquid baby formula is ready-to-use and safe for infants, and is widely used in many countries (6,14) other than in Japan. Upon natural disasters, liquid baby formula has been well received as part of overseas relief supplies to Japan.…”