The activity of phytase and the biomass of the yeast increased progressively over time, and the maximum phytase activity (0.710 ± 0.002U/mL) and biomass (2.11 ± 0.03mg/mL) were obtained after 96h of fermentation. However, the enzyme yield significantly declined after further incubation times (P ≤ 0.05), which is possibly due to the reduced levels of nutrients available in the medium, as reported by Roospesh et al. [34].