pH and TA in the different treatments (400 MPa, 600 MPa/
5 min/20 C and 75 C/10 min) during refrigerated storage (21 days
at 5 C) in apple puree. However,detected a sharp decline in pH and Brix in milkorange
juice, possibly due to the respective formation of lactic acid
and fermentation of sugars as a result of microbial growth.