Improved heat stability of recombined evaporated milk emulsions by wet heat pretreatment of skim milk powder dispersions

نویسندگان

چکیده

In this study, skim milk powder (SMP) aqueous dispersions were subjected to a preliminary wet heat incubation at various temperatures (70–90 °C) improve the stability of recombined filled evaporated (RFEM) emulsions. The determination free amino group and lactose content SDS-PAGE revealed that both whey proteins caseins involved in conjugation with upon heating different temperatures. results non-sedimentable serum protein content, particle size relative viscosity SMP dispersion indicated association casein micelles dissociation from occurred during incubation. subsequently produced RFEM emulsions was greatly enhanced: could withstand typical in-container sterilization procedure (i.e. 30 min 120 without coagulation (D4,3 <5 ?m consistency coefficient <50 mPa s) when selecting an appropriate time. Generally, higher temperature, shorter time needed enable heat-stable emulsion. However, prolonged had negative effect on emulsions, narrower interval enabled improved observed temperature.

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ژورنال

عنوان ژورنال: Food Hydrocolloids

سال: 2021

ISSN: ['1873-7137', '0268-005X']

DOI: https://doi.org/10.1016/j.foodhyd.2021.106757