All values are mean of three replications ±SD.
Different superscript letters in the same row indicate significant differences at P < 0.05.
ND: not detected.
Sample 1: 0 g/kg onion juice & not fermented; Sample 2: 0 g/kg onion juice & fermented; Sample 3: 60 g/kg onion juice & not fermented; Sample 4: 60 g/kg onion juice and fermented.