All onion juice supplemented samples contained
significantly higher levels of L. acidophilus than the control
sample (p < 0.05). Moreover, the viable cell counts of L. acidophilus
increased as the content of onion juice increased. In addition, there
was a significant decrease in viable cell counts of L. acidophilus
during storage when the content of onion juice was less than 20 g/
kg (p < 0.05), while the fermented milk containing 60 g/kg or
higher of onion juice had no significant decrease in viable cell
counts of L. acidophilus during cold storage (p > 0.05). Hence, the
onion juice had positive effects on the growth and maintenance of
L. acidophilus viability