Journal
FOOD CHEMISTRY
Volume 391, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2022.133179
Keywords
Agglomerated dairy powders; Breakage behaviour; Protein; Carbohydrate; Powder functionality
Funding
- Teagasc - the Agriculture and Food Development Authority [MDDT 0153]
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This study investigated the effect of protein and carbohydrate content on the breakage behavior of spray-dried agglomerated infant milk formula. Proteins had a greater influence on breakage than carbohydrates. Breakage changed the physical and structural properties of powders, impacting rehydration properties and crystallization temperatures.
This study explored the effect of protein content (whey protein and casein) and carbohydrate content (lactose, sucrose, and maltodextrin) on the breakage behaviour and its influence on spray-dried agglomerated model infant milk formula. Whey protein powders were bigger in particle size, weaker in structural strength, and marginally more irregular in shape, which resulted in better rehydration properties but more breakage than pure casein powders. Similarly, sucrose samples had better rehydration properties and higher glass transition temperatures but suffered more breakage than maltodextrin and pure lactose powders because of their bigger particle size. The influence of proteins on breakage was greater than that of carbohydrates. Breakage changed the physical and structural properties of powders, especially for whey protein and sucrose samples, which caused the deterioration of rehydration properties and the decrease in crystallization temperatures. From the perspective of particle breakage, unwanted dairy powder breakage could be controlled by changing powder formulations.
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