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Lactose-hydrolyzed milk powder: Physicochemical and technofunctional characterization

ABSTRACT The objective of this work is to demonstrate the effect of operational drying parameters on the physicochemical and techno-functional properties of lactose-hydrolyzed milk powder (LHMP). LHMP showed water content… Click to show full abstract

ABSTRACT The objective of this work is to demonstrate the effect of operational drying parameters on the physicochemical and techno-functional properties of lactose-hydrolyzed milk powder (LHMP). LHMP showed water content superior to the control regardless of drying conditions, which is a direct result of the difficulties encountered in drying the product. For a lab-scale spray dryer, the LHMP produced at θair,in = 145°C and mCM = 1.0 kg · h−1 was the only sample that met all stipulated quality parameters: water content <5% (w/w), aw < 0.20 and luminosity value >93, particle sizes similar to control, and complete rehydration.

Keywords: powder physicochemical; milk powder; lactose hydrolyzed; hydrolyzed milk

Journal Title: Drying Technology
Year Published: 2018

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