The results presented in table 1 depict the effect level of S. cerevisiae on ethanol production in papaya juice. Ethanol production was increased with the increase in inoculums concentration up to 10% for a fermentation period of 5 days. A slight decrease in ethanol production was recorded beyond inoculums level of 10%. Among the various concentration of inoculum level the 10% given maximum ethanol production (Table 1, figure 2). Similar result was observed by Singh et al., (1998). He reported an inoculums level of 10% has been reported optimal for the production of kinnow wine.