Analysis of the data
obtained showed there was a strong significant influence of the operational factors and their interactions
on lactic acid production (P < 0.0001) of fermenting microorganisms. The regression model for
lactic acid production fitted the data adequately and explained more than 99% of the variation in the
response. The results also showed that the maximum production of lactic acid can be achieved at initial
medium pH of 10; incubation time of 6 days; and at a temperature of 35 C. The maximum production
of lactic acid was 17.484 g/L. This study highlights the potential of mango peels as a low cost
and economically viable fermentation substrate for the production of lactic acid.