S. cerevisiae has ability to produce high amount of protein content
The total protein content of yeast cells was assayed, after adjusting the optimum pH. The protein content of the sample under conditions of 24 h incubation and 25 µg/ml of zinc concentration at optimum pH 6, based on the Kjeldahl method, was 61.4 g/L. This estimation was conducted by multiplying total nitrogen by the coefficient factor of 6.25 and the result showed that protein content of the yeast biomass was above 50% (w/w).