Heat induced interactions in whey protein depleted milk concentrates: Comparison of ultrafiltration and microfiltration

نویسندگان

چکیده

The physical and chemical changes of 4x milk concentrates prepared by ultrafiltration (UF) microfiltration (MF) combined with diafiltration were studied after heating in situ to 85 °C subsequent cooling. Skim (1x) was analyzed as control. had comparable pH, colloidal casein calcium phosphate, but differed whey proteins serum allowing investigating the effect soluble phase composition on viscosity protein aggregation during heating. In heated samples, there a decrease apparent diameter particles, well bulk compared unheated concentrates. On other hand, turbidity increased. Particles’ diffusivity measured diffusive wave spectroscopy slower UF concentrate MF counterpart, both before heating, demonstrating aggregates changing properties this work, comparing fresh reduced calcium, similar processing history, it demonstrated that presence drives dissociation. showed increased heat stability concentrates, lower It also observed cooling kinetics affect dissociation caseins skim milk. A fine control for ions depletion is critical technological quality

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ژورنال

عنوان ژورنال: Food Hydrocolloids

سال: 2023

ISSN: ['1873-7137', '0268-005X']

DOI: https://doi.org/10.1016/j.foodhyd.2022.108354