Results found that L.casei showed strong ability to survive in the stressful condition of low pH and high acidity of fermented litchi juice and also the relatively low temperature of the environment (4 °C), and the viability counts of L.casei were more 8.0 log CFU/mL in heat- and HHP-treated litchi juice after 4 weeks of storage at 4 °C, which is considered a great value for fermented products containing probiotics (Shah, 2007).