Fig. 1 shows microbiological results and pH measurements of base product (BP), UHPH and pasteurized soymilk during 28 days of storage at 4 °C
UHPH treatments at 200 MPa were more effective in the microbial inactivation than pasteurization treatment
In general terms, pasteurized soymilk presented higher bacterial counts compared to UHPH soymilks. From day 1 to day 14, mesophilic bacteria increased progressively in pasteurized and 200 MPa, 55 °C soymilks
UHPH-treated soymilks revealed similar pH evolution during the period of storage. A decrease in the pH values was observed after 21 days of storage